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Break-Even Calculator Break-even calculator Calculators

Business Budget Calculator Plan your monthly business budget Calculators

Business Valuation Calculator Business valuation calculator Calculators

Cap Table Calculator Ownership and dilution after each funding round, with an option pool top-up Calculators

SAFE Conversion Calculator Post-money SAFE shares, conversion price and ownership with a cap or discount Calculators

Convertible Note Calculator Accrued simple interest, cap and discount conversion into shares Calculators

Founder Equity Split Calculator Co-founder split from weighted factors and scores you enter Calculators

Vesting Schedule Calculator Cliff and monthly vesting by month, with optional acceleration Calculators

Option Pool Shuffle Calculator Pool top-up shares, price per share and effective pre-money Calculators

Stock Option Exercise Cost Calculator Cost to exercise and spread between strike and fair market value Calculators

Post-Money Valuation Calculator Post-money, investor ownership and price per share from a raise Calculators

Exit Waterfall Calculator Who gets what at an exit with 1x non-participating preferences Calculators

Employee Equity Offer Value Estimator Scenario values for a startup options grant, with a risk warning Calculators

Cash Flow Forecast Calculator Project your business cash flow for 12 months Calculators

Employee Cost Calculator Calculate the true cost of hiring an employee in Canada Calculators

Meeting Cost Calculator Cost of a meeting per minute, per meeting and per year from attendees, pay and length Calculators

Real Hourly Wage Calculator Hourly pay after unpaid hours, commuting and work-related costs Calculators

Commute Time Value Calculator Hours and dollars a commute costs each year, and what a shorter one would save Calculators

Pomodoro Cycle Calculator Pomodoros, breaks, total time and finish time for a task Calculators

Book Reading Time Calculator Hours and days to finish a book from its length and your reading speed Calculators

Time Block Planner A day schedule from task lengths, a start time and a buffer Calculators

Task Estimate With Buffer Calculator Three-point (PERT) estimate with 90% and 95% ranges and a flat buffer Calculators

Deep Work Hours Calculator Focused hours left in your week after meetings, admin and overhead Calculators

Calendar Free Slot Finder Open gaps in a day from your busy times, private in your browser Calculators

Freelance Hourly Rate Calculator Calculate the hourly rate you need from income, hours, and overhead Calculators

Freelance Project Quote Calculator Price delivery hours, meetings, revisions, expenses and a risk buffer Calculators

Scope-Creep Calculator Turn extra work into a transparent freelance change order Calculators

Commercial Lease Comparison (NNN) Compare two lease offers by effective rent, total cost and NPV Calculators

Fixed-Fee Freelance Calculator Find the maximum hours a fixed fee can safely buy Calculators

Sales Commission Calculator Commission owed, with an optional quota accelerator tier Calculators

Invoice Late Fee & Interest Calculator Calculate interest and late fees owed on an overdue invoice Calculators

Pricing Calculator Calculate optimal pricing using cost-plus, target-margin, and Calculators

Profit Margin Calculator Profit margin and markup calculator Calculators

ROI Calculator ROI calculator Calculators

Startup Cost Calculator Estimate your total startup expenses including one-time and Calculators

Inventory Turnover Calculator Turnover and days inventory outstanding from COGS and average inventory Calculators

Working Capital & Ratios Calculator Working capital, current ratio and quick ratio with a lender printout Calculators

Cash Conversion Cycle Calculator DIO + DSO minus DPO from days or balances, with cash released per day Calculators

Days Sales Outstanding Calculator DSO from receivables and credit sales, with a countback method Calculators

Wholesale Markup & Keystone Set wholesale price, margin, and keystone retail price from unit cost Calculators

Subscription Price Increase Scenario Compare cumulative revenue under explicit churn assumptions Calculators

SaaS Metrics Calculator MRR, ARR, retention, LTV, CAC, and payback from your inputs Calculators

Retail Margin & Product Landed Cost Separate product landed cost from discounts, fulfilment, and payment fees Calculators

Order Contribution Margin Shopify-style order margin with editable fees and costs Calculators

Print-on-Demand Profit & Margin Model POD product, fulfilment, shipping, and editable fee rates Calculators

Reorder Point & Safety Stock Reorder point, days of cover and order-by date from demand and lead time Calculators

Marketplace Break-Even Price & Units Find break-even price and units from your own fee rate Calculators

Whatnot Fee & Profit Calculator Whatnot commission, processing, payout and profit, or the price for a target profit Calculators

Shopee Singapore Fee Calculator Commission by category with caps, 3.27% transaction fee, PXP rates and payout Calculators

Shopee Malaysia Fee Calculator Commission with 8% SST, 3.78% transaction fee, platform support fee and payout Calculators

Shopee Philippines Fee Calculator Commission, shipping, growth support, order fee, programme fees and payout Calculators

Shopee Indonesia Admin Fee Calculator Biaya administrasi by Mall or Star class, VAT included, with payout and break-even Calculators

Shopee Brazil Fee Calculator Commission by price band, fixed amount, Pix subsidy and break-even price Calculators

Rakuten Ichiba Fee Calculator Monthly fixed fee, system fee, points fee, profit and break-even sales Calculators

Newegg Marketplace Fee Calculator Category commission, payout, profit and break-even price for Newegg sellers. Calculators

itch.io Fee Calculator Revenue share plus 2.9% + $0.30 processing, payout and break-even price. Calculators

Amazon AWD Fee Calculator AWD storage per cubic foot, inbound and outbound processing and transportation. Calculators

Amazon Vine Cost Calculator Vine enrollment fee by units plus the cost of the units you give away. Calculators

Reverb Fee Calculator 5% selling fee, Reverb Payments processing, payout and break-even price Calculators

StockX Seller Fee Calculator Seller Level transaction fee, 3% processing, payout and break-even price Calculators

GOAT Seller Fee Calculator GOAT commission by seller rating, seller fee, cash out fee and payout Calculators

TCGplayer Seller Fee Calculator Marketplace commission with the $75 cap, transaction fee, Pro fee and payout Calculators

Discogs Seller Fee Calculator 9% selling fee on item plus shipping with min and max, and payout Calculators

Faire Commission Calculator Faire commission, new customer fee, payout fees and net payout for brands Calculators

Amazon Handmade Fee Calculator 15% referral fee with the $0.30 minimum, payout and break-even price Calculators

Commercial Property Coinsurance Penalty Calculator Required limit, penalty and claim payment for a partial loss Calculators

Payment Processor Fee Comparison Net per sale, monthly cost and break-even volume across processors Calculators

Stripe Fee Calculator United Kingdom Fee, net and price to charge for an exact payout in GBP Calculators

Stripe Fee Calculator Australia Fee, net and price to charge for an exact payout in AUD Calculators

Stripe Fee Calculator Germany Fee, net and price to charge for an exact payout in EUR Calculators

Stripe Fee Calculator Ireland Fee, net and price to charge for an exact payout in EUR Calculators

Stripe Fee Calculator New Zealand Fee, net and price to charge for an exact payout in NZD Calculators

PayPal Fee Calculator United Kingdom Fee, net and price to charge for an exact payout in GBP Calculators

PayPal Fee Calculator Australia Fee, net and price to charge for an exact payout in AUD Calculators

PayPal Fee Calculator Ireland Fee, net and price to charge for an exact payout in EUR Calculators

PayPal Fee Calculator New Zealand Fee, net and price to charge for an exact payout in NZD Calculators

eBay Fee Calculator2026 final value fee, shipping costs and net profit after eBay feesCalculators

Amazon FBA Profit & FeeModel referral, fulfillment, storage, and landed costsCalculators

Walmart Referral Fee by CategoryExact Walmart Marketplace referral fee, with tiered ratesCalculators

Walmart WFS Fulfillment FeesFulfillment fee by weight, size and oversize tierCalculators

Walmart WFS Storage FeesStorage cost per unit, peak season and long-term ratesCalculators

Walmart Seller Profit CalculatorProfit per order after referral, WFS, product cost and adsCalculators

Walmart vs Amazon Seller FeesCompare Walmart fees with your Amazon fee inputsCalculators

Walmart WFS Return FeesReturn processing, retained fees and disposalCalculators

Walmart Canada Marketplace FeesCanadian referral fee by category and profit in CADCalculators

Amazon Seller Performance RatesCalculate five seller-fulfilled rates from report countsCalculators

Amazon Fee & Economics Preview CSVSummarize sales, fees, ads, costs and proceeds locallyCalculators

Sponsored Products Search-Term ProfitabilityACOS, ROAS and contribution assumptions from a local reportCalculators

Amazon FBA Inventory RunwayAvailable and inbound days of cover from your sales periodCalculators

Amazon FBA Returns Processing FeeFee above the category return-rate threshold, with unsellable returnsCalculators

Amazon FBA Apparel & Shoes Returns FeePer-returned-unit fee for apparel and shoes at 2026 ratesCalculators

Amazon FBA Return Rate ThresholdCategory thresholds and your return rate versus the limitCalculators

Amazon FBA Removal & Disposal FeeRemoval or disposal order fee per unit and in totalCalculators

Amazon FBA Size Tier CheckerDimensions and weight to size tier, shipping weight and OvermaxCalculators

Amazon FBA Fulfillment Fee by Size2026 fulfillment fee by size, weight, price band and seasonCalculators

Amazon Referral Fee by CategoryReferral fee for every U.S. category: tiers, minimums and closing feeCalculators

Amazon FBA Monthly Storage FeesStorage fee by cubic foot: standard, oversize, Q4 peak and surchargeCalculators

Amazon Aged Inventory SurchargeSurcharge by days in stock from 181 days, per cubic foot or per unitCalculators

Amazon FBA vs FBM ProfitProfit per unit for FBA and FBM side by side, with shipping break-evenCalculators

Amazon Canada FBA Fees (CAD)Amazon.ca referral, fulfilment and storage fees with profit per unit in CADCalculators

Amazon Low-Inventory-Level FeeWhether the fee applies from 30- and 90-day days of supply, and the tierCalculators

Ecommerce Returns Cost & RecoveryModel refunds, handling, shipping, fees and recovery valueCalculators

Free-Shipping Threshold ProfitabilityFind the order value that covers shipping and target contributionCalculators

MOQ Cash & Stock CoverMeasure a supplier minimum in cash and days of stockCalculators

SKU Contribution-Margin CSVGroup SKU revenue and variable costs locallyCalculators

3PL Fulfillment-Cost ComparisonCompare two itemized quotes at the same monthly volumeCalculators

AWS Lambda CostLambda GB-seconds, requests, free tier and Arm vs x86 tiers.Calculators

S3 Egress CostS3 Standard storage, requests and internet egress tiers.Calculators

NAT Gateway CostNAT gateway hourly, per-GB processing and egress with gateway-endpoint savings.Calculators

CDN Bandwidth Cost (CloudFront)CloudFront transfer tiers and request fees vs direct egress.Calculators

R2 vs S3 CostCloudflare R2 vs Amazon S3 storage, operations and egress.Calculators

Savings Plan Break-EvenCommitment, discount and utilisation break-even for cloud compute.Calculators

Website Hosting CostVPS, domain, CDN, backups and bandwidth added into a budget.Calculators

Cloud Egress FeesTiered egress fees for AWS, CloudFront, R2 or a flat rate.Calculators

Cloud Run CostCloud Run bill from requests, duration, vCPU and memory with the free tierCalculators

GCP Egress CostInternet egress from Google Cloud by destination, Premium or Standard TierCalculators

Azure Blob Storage CostCompare Hot, Cool, Cold and Archive blob tiers for storage, operations and egressCalculators

Azure Functions CostAzure Functions Consumption vs Flex Consumption monthly cost with free grantsCalculators

GCS vs S3 vs R2 CostGoogle Cloud Storage vs S3 vs R2 for storage, requests and egressCalculators

BigQuery On-Demand Query CostBigQuery on-demand query cost from bytes processed, with the free TiBCalculators

Vercel vs Netlify BandwidthVercel Pro vs Netlify credits for bandwidth and request overageCalculators

Cloud Cost per RequestCost per request, per 1,000 and per million, plus Cloud Run and Azure Functions list pricesCalculators

Shopify ProfitEstimate order contribution after payment and plan costsCalculators

TikTok Shop Fee & ProfitModel referral, affiliate, ads, and delivery assumptionsCalculators

Dropshipping MarginInclude supplier, shipping, ads, payment, and refund costsCalculators

Candle Wax & Fragrance Oil CalculatorGrams of wax and fragrance oil from container size and load.Calculators

Candle Cost Per Candle & Pricing CalculatorCost per candle, then retail and wholesale price for your margin.Calculators

Cosmetic Formula Batch Scaler: Percent to GramsTurn a percent formula into grams, batch cost and unit cost.Calculators

Hair Color Mixing Ratio Calculator (Color to Developer)Grams of colour and developer for any ratio, with cost per client.Calculators

Salon Service Price Calculator: Hair, Nails, Lashes, EstheticsHourly rate and service prices for hair, nails, lashes and skin.Calculators

Booth & Chair Rental Break-Even Calculator for StylistsClients needed to cover booth rent, and when renting beats commission.Calculators

Salon Commission & Tip Split CalculatorStylist pay from commission, retail, product charges and tips.Calculators

Salon No-Show Cost Calculator: What Missed Appointments CostYearly revenue and profit lost to missed appointments.Calculators

Lash & Nail Supply Cost Per Service CalculatorSupply cost per lash set, nail service or facial.Calculators

Beauty Subscription Box Profit & Margin CalculatorProfit per box, churn, lifetime value and payback.Calculators

Chair Utilization Rate Calculator for Salons and BarbershopsBooked hours over open chair hours, revenue per chair hour and what idle time costs.Calculators

Tip Pool Calculator: Split Tips by Hours WorkedSplit a tip pool by hours, weighted points or equally, exact to the cent.Calculators

How Many Clients Do I Need? Salon Income Goal CalculatorRevenue, clients per week and hours needed to reach a yearly income goal.Calculators

Cost Per Chair Hour Calculator: Salon Overhead Per Billable HourMonthly overhead and pay target to cost per billable hour and a minimum service price.Calculators

Service Package Discount Calculator: Buy 5 Get 1 Free and Prepaid PacksReal discount, price per session and profit on buy-5-get-1 style prepaid packages.Calculators

Salon Client Lifetime Value Calculator: What a Regular Client Is WorthLifetime profit of a regular client from ticket, visits, margin and retention, with LTV to CAC.Calculators

Appointments Per Day Calculator for Salons, Barbers and SpasSlots per day and week from hours, breaks, service length and cleanup buffer, with revenue.Calculators

Tattoo Price Calculator for Artists: Hourly Rate, Minimum and DepositPrice from hourly rate, hours, setup and supplies, with minimum, sessions, deposit and shop split.Calculators

Salon Retail Attach Rate Calculator: Product Sales Per ClientShare of clients who buy retail, retail per client, profit and the gain from a higher attach rate.Calculators

Sales Per Square Foot Calculator for Retail StoresYearly and monthly sales per square foot or square metre, with the gap to your own target.Calculators

Retail Staffing Hours Calculator: Labour Hours From Foot TrafficLabour hours per day and week from foot traffic, conversion and service time, with labour as a share of sales.Calculators

Markdown Margin Impact Calculator: How Many Extra Units You NeedNew price, margin and the extra units a one- or two-step markdown must sell to break even on profit.Calculators

Retail Conversion Rate and Basket Size CalculatorSales per visitor and the gain from raising conversion or average transaction value.Calculators

Retail Rent to Sales Ratio Calculator: Occupancy Cost PercentageRent and occupancy cost as a percentage of sales, the affordable maximum and the sales needed.Calculators

Store Break-Even Sales Per Day CalculatorDaily sales and transactions to break even, plus the daily sales for a monthly profit target.Calculators

Loyalty Program ROI Calculator for RetailersNet profit, ROI and break-even spend lift per member for a rewards or points program.Calculators

BOGO Discount Profit Calculator: Buy One Get One MarginWork out the profit on a buy one get one free or half-off second item deal, the margin per deal basket, and how many orders you need to beat a normal period.Calculators

Gift With Purchase Profit Calculator for Online StoresCheck whether a free gift over a spend threshold pays for itself: profit per order, break-even orders and the order value needed to cover the gift cost.Calculators

Flash Sale Break-Even Calculator: Units Needed to ProfitFind how many units a flash sale must sell to beat full-price sales after fees, per-unit and sale costs, plus the deepest discount that still earns.Calculators

Loyalty Points Liability Calculator: Deferred RevenueEstimate outstanding loyalty points as deferred revenue from points, value per point and expected redemption, and how a sale splits between goods and points.Calculators

Gift Card Breakage Calculator: Revenue and LiabilityEstimate how much gift card breakage you can recognise as redemptions happen, the unrecognised breakage still to come and the remaining gift card liability.Calculators

Pre-Order Deposit Cash Flow Calculator for SellersModel cash for a deposit pre-order: deposits, refunds, supplier deposit and balance, the lowest cash point and the funding you need before you ship.Calculators

Coupon Code Affiliate Leakage Calculator for StoresSee what coupon-code affiliates cost when shoppers were already buying: discount and commission on leaked orders, net profit and break-even leakage.Calculators

Pop-Up Shop Profit CalculatorNet profit, break-even sales and profit per staff hour for a pop-up shop or market stall.Calculators

Airbnb Profit Calculator: Monthly and Yearly Host ProfitMonthly and yearly profit and profit per booked night from nightly rate, occupancy, host fee, cleaning, supplies and fixed costs.Calculators

Airbnb Occupancy Rate, ADR and RevPAR CalculatorOccupancy rate, average daily rate and RevPAR from revenue, nights booked and nights available, with blocked nights excluded.Calculators

Airbnb Cleaning Fee Calculator: What to Charge Per StayCleaning fee to charge from hours, rate, laundry and supplies after the platform fee, shown per stay and per night.Calculators

Minimum Nightly Rate to Break Even: Short-Term Rental CalculatorLowest nightly rate that covers fixed and per-stay costs at your occupancy, a profit-target rate, and break-even occupancy at your current rate.Calculators

Occupancy and Lodging Tax Calculator for Short-Term RentalsTax and guest total for a stay from the tax rates you enter, or back the tax out of a tax-inclusive price.Calculators

Host-Only vs Split-Fee Payout Comparer for Airbnb HostsHost payout and guest total under a split fee and a host-only fee, for the same listed price and for the same guest total.Calculators

Seasonal Pricing Calendar Calculator for Short-Term RentalsWeekday, weekend and peak-season nightly rates, blended ADR and expected annual revenue from your own uplifts and occupancy.Calculators

Short-Term Rental Turnover Cost Per Stay CalculatorCost per turnover, per night at different stay lengths and per year, including linen wear, and the gap against your cleaning fee.Calculators

Short-Term Rental Furnishing and Startup Budget Payback CalculatorPayback months, monthly net, first-year return and the nights needed to recover a furnishing and setup budget.Calculators

Car Flip Profit Calculator Net profit, ROI, profit per day and max bid for a used car flip Calculators

Car Sharing Earnings Calculator: Turo-Style Host ProfitMonthly profit, profit per trip day and break-even trip days after platform share, protection, depreciation and running costs.Calculators

Wise Fee Calculator: Net Received After Transfer FeesNet received after a fixed fee, percentage fee and exchange-rate markup, with the effective rate and cost against mid-market.Calculators

PayPal International Fee Calculator for FreelancersWhat you keep from an international payment after percentage, cross-border and fixed fees and the conversion spread.Calculators

Exchange Rate Markup Calculator: Hidden FX FeeThe hidden fee in an exchange rate: markup against mid-market and what it cost you.Calculators

Gross Up an Invoice for Payment Fees CalculatorThe invoice total that leaves your target after payment fees, with a fixed fee and conversion spread.Calculators

W-8BEN Treaty Rate Withholding CalculatorU.S. withholding at 30% versus a treaty rate you read from the IRS table, plus a W-8BEN guide.Calculators

Foreign Earned Income Exclusion 330-Day CalculatorCount full days abroad for the 330-day test, see days to spare and estimate the 2026 exclusion.Calculators

International Transfer Fee Comparison CalculatorFees and rates for up to three options on the same amount, ranked by what actually arrives.Calculators

ROAS Calculator: Return on Ad Spend and Profit After AdsReturn on ad spend as a ratio and a percent, plus profit after ads from gross margin.

Break-Even ROAS Calculator: Minimum ROAS to Cover Your CostsMinimum ROAS from gross margin, ROAS for a target profit and max cost per order.

CPM, CPC, CTR and CPA Calculator: Convert Ad MetricsCPM, CPC, CTR, conversion rate and CPA from spend and counts, or convert CPM and CTR to CPC.

Funnel Conversion Rate Calculator: Step and Overall RatesStep-by-step and overall funnel conversion, biggest drop-off and revenue per visitor.

Average Order Value Calculator: AOV Formula and LiftAverage order value from revenue and orders, units per order, unit price and the value of an AOV change.

Ecommerce Conversion Rate and Revenue Per Visitor CalculatorEcommerce conversion rate and revenue per visitor, visitors needed for a revenue target and the value of a lift.

Cart Abandonment Rate Calculator: Recovery ValueCart abandonment rate from carts and orders, the value of abandoned carts and what recovering a share is worth.

Repeat Purchase Rate Calculator: Repeat Customer RateRepeat customer rate from unique and repeat customers, with purchase frequency and orders per repeat customer.

Customer Retention Rate Calculator: Formula and ChurnRetention rate from start, end and new customers, with churn, customers lost and implied lifespan.

Coupon Code Profitability Calculator: Break-Even OrdersMargin before and after a coupon, break-even extra orders and profit at an order change you choose.

Bundle Pricing Profit Calculator: Margin and Max DiscountBundle price, profit and margin against selling separately, with the maximum discount for a target margin.

Subscribe and Save Margin Calculator: Subscriber vs One-TimeSubscriber margin per order, expected orders from a continue rate and orders needed to beat a one-time buyer.

Ecommerce Revenue Forecast From Traffic: Sessions to SalesMonth-by-month orders and revenue from sessions, growth, conversion rate and AOV, net of refunds.

Email List Growth Rate Calculator: Net Growth and ProjectionNet email list growth rate, churn and a compounding projection to a target size.

Email Revenue Per Subscriber Calculator: RPR and Value Per SubscriberRevenue per recipient, revenue per subscriber per month and year, and platform cost per subscriber.

Ad Budget Split Calculator: Allocate Spend Across ChannelsSplit a monthly ad budget by percentage into monthly, weekly and daily dollars and expected clicks.

Affiliate EPC Calculator: Earnings Per ClickEarnings per click, per 100 clicks, conversion rate, profit against paid CPC and clicks for an income goal.

Freelance Day Rate Calculator: Convert a Salary to a Contractor Day RateSalary to contractor day rate after benefits, overhead and non-billable days, with the hourly equivalent.Calculators

Billable Hours Per Year Calculator for Freelancers and ConsultantsBillable hours and days per year after leave, holidays, sick days and unbillable admin time.Calculators

Retainer Pricing Calculator: Monthly Retainer Fee for Freelancers and AgenciesMonthly retainer fee from included hours, rate and discount, with effective rate and break-even hours.Calculators

Rush Fee Calculator: What to Charge for a Rush Job or Tight DeadlineRush job price from overtime hours, a premium multiplier and a displacement fee, with the surcharge percent.Calculators

Agency Markup vs Freelancer Rate Calculator: Why Agencies Cost MoreAgency bill rate and markup from cost and gross margin, compared with a freelancer's project total.Calculators

Equipment Cost Per Project Calculator: Charge for Gear You Already OwnDepreciation and upkeep of gear spread over projects, with cost per project and per hour of use.Calculators

Freelancer Take-Home Pay Calculator: What You Keep After Costs and TaxRevenue to take-home after expenses and the tax and contribution rates you enter, by month and by hour.Calculators

Effective Hourly Rate Calculator: What a Freelance Project Really Pays Per HourProject fee over all hours, billable and not, to see the real hourly rate and the fee that would have hit your target.Calculators

Freelance Rate Increase Calculator: How Many Clients Can You Lose?Raise percentage, break-even client loss and yearly revenue change when you increase your hourly rate.Calculators

Per-Word Rate to Hourly Calculator for Freelance WritersWhat a per-word rate pays per hour including research and revisions, and the per-word rate for a target hourly rate.Calculators

Fitness Class Break-Even Calculator: Students Needed per Yoga or Pilates ClassStudents needed to cover instructor pay and overhead, with profit at expected and full attendance.Calculators

Fitness Instructor Pay Per Class Calculator: Flat Fee, Per Head or Revenue ShareStudio take and instructor hourly rate under flat, per-head, hybrid and revenue-share pay.Calculators

Massage and Spa Treatment Room Revenue Per Hour CalculatorRevenue per open room hour, monthly profit and break-even bookings for one treatment room.Calculators

Membership vs Drop-In vs Class Pack Calculator for Yoga and Fitness StudiosMonthly cost of drop-in, class pack and membership, and how many classes make membership worth it.Calculators

Class Pack Breakage Calculator: What Expired Classes Are Worth to a StudioExpired-class revenue, effective price per used class and monthly breakage on pack sales.Calculators

Studio Membership Churn and Lifetime Value Calculator for Gyms and Yoga StudiosMember lifetime, lifetime value, payback and the new members needed to offset monthly churn.Calculators

Studio Rent Per Class Calculator: Rent as a Share of Class RevenueRent per class and per attendee, rent share of revenue and attendance needed to hit a target.Calculators

Studio Revenue Per Attendee Calculator: Blended Yield of Drop-In, Pack and MembershipAverage revenue per attendee and per class from your drop-in, pack and membership mix.Calculators

Dog Grooming Price Calculator: Price by Size and TimePrice per dog size from your hourly rate, minutes per groom and supplies, with a matted-coat add-on.Calculators

How Many Dogs Can a Groomer Groom in a Day? CalculatorDogs per shift from hours, breaks, cleanup and your size mix, with daily, weekly and yearly revenue.Calculators

Dog Boarding Revenue Calculator: Kennels, Occupancy and ProfitYearly revenue, profit and break-even occupancy for a dog boarding kennel.Calculators

Dog Daycare Break-Even Calculator: Dogs Per Day to Cover CostsDogs per day needed to cover staff, rent and per-dog costs, after package discounts.Calculators

Dog Walking Profit Per Hour CalculatorProfit per hour for a dog walking route, counting travel time and vehicle costs.Calculators

Mobile Dog Grooming Van Cost Calculator: Cost Per GroomVan payment, insurance, fuel and supplies as a cost per groom, with the price for your target profit.Calculators

Litter Cost Per Puppy Calculator for BreedersCost per puppy sold, break-even price and profit for a litter, including puppies you keep.Calculators

Kennel Run Size Calculator: Floor Space Per DogMinimum floor area and height for a dog kennel run from the dog's length and head height.Calculators

Price Increase Impact Calculator: Revenue and ProfitVolume, revenue and profit after a price rise at an elasticity you choose, with the break-even elasticity.

Price Elasticity of Demand Calculator: Midpoint MethodMidpoint-method elasticity from two price and quantity points, elastic or inelastic, and the revenue change.

Volume Discount Calculator: Bulk Price BreaksOrder total, unit price and savings from quantity price breaks, and whether the next break costs less.

Tiered Pricing Calculator: Graduated vs VolumeGraduated and volume tier billing side by side across three tiers, with effective price per unit.

Discount Stacking Calculator: Sequential PercentagesFinal price and true total discount when percentage discounts stack, versus adding the percentages.

Psychological Price Rounder: .99, .95 and Charm PricesRound to .99, .95, .97, .49 or .50 endings, with percentage change and left-digit flags.

Good-Better-Best Pricing Calculator: Plan Mix RevenueMonthly revenue, revenue per customer and profit for three plans, and the gain from a better plan mix.

Optimal Price Calculator: Linear Demand CurveRevenue-maximising and profit-maximising price from a straight demand line through two observed points.

Price Increase Calculator: Percent and Multi-YearNew price from a percentage or a target price, with a compounding year-by-year schedule.

Markup Calculator: Price, Markup % and MarginMarkup calculator: find the selling price from cost and markup %, the markup % from cost and price, or the cost from price and markup, with profit and margin.

Markup to Margin Converter: Markup % to Margin %Convert a markup percentage to gross margin percentage: margin = markup / (100 + markup). Includes a markup-to-margin chart from 10% to 100% markup.

Margin to Markup Converter: Margin % to Markup %Convert a gross margin percentage to the markup percentage you need: markup = margin / (100 - margin). Includes a margin-to-markup chart from 10% to 80%.

Selling Price from Target Margin CalculatorSelling price from cost and target margin: price = cost / (1 - margin). See the profit, the markup needed and why cost x (1 + margin) misses your target.

Cost-Plus Pricing Calculator: Price per UnitCost-plus pricing calculator: add materials, labor, overhead and other costs, divide by units and add a markup to get the price per unit, profit and margin.

COGS Calculator: Cost of Goods Sold FormulaCOGS calculator: beginning inventory plus purchases, labor, materials and other costs, minus ending inventory. Add revenue for gross profit and gross margin.

Wholesale to Retail Price CalculatorWholesale to retail price calculator: set a retail price from wholesale cost and freight using a markup or a target margin, and see profit, markup and margin.

Discount Calculator: Percent Off, Sale Price, SavingsDiscount calculator: find the sale price and savings from a percent off, the percent off from two prices, or the original price before the discount.

MSRP, MAP and Wholesale Price Chain CalculatorWork from manufacturer cost up to MSRP, or from MSRP down to wholesale and cost, using the margin at each level. Check the retailer margin at a MAP price.

Shopify Plan Comparison Calculator: Monthly Cost by PlanShopify plan comparison calculator: total monthly cost of Basic, Grow, Advanced and Plus from your orders, order value and card mix, with Shopify Payments rates and fees.

Shopify Third-Party Gateway Transaction Fee CalculatorShopify transaction fee calculator for third-party gateways: Shopify's 2%, 1%, 0.6% or 0.2% fee by plan plus your gateway's own fee, as a total and a share of sales.

Shopify Payments Fees by Country: Canada, UK, AustraliaShopify Payments fees by country and plan for Canada, the UK and Australia: online, Amex, international and in-person rates, with the fee on any sale amount.

Shopify Plan Upgrade Break-Even CalculatorShopify plan upgrade break-even calculator: how many orders and how much monthly sales it takes for Grow or Advanced to cost less than Basic, using real card rates.

Shopify vs Etsy vs Amazon Fees: What Each ChargesShopify vs Etsy vs Amazon fees compared by fee type, with links to the official fee pages and to a calculator for each platform so you can price the same product on all three.

Shopify POS Pro Cost and In-Person Fee CalculatorShopify POS Pro cost calculator: the per-location add-on plus in-person card fees by plan for Canada, the UK and Australia, as a total and a share of in-store sales.

Shopify Annual vs Monthly Billing Savings CalculatorShopify annual discount calculator: monthly versus yearly price for Basic, Grow and Advanced in Canada, the UK and Australia, with the saving per year and as a percentage.

Poshmark Fee Calculator: Seller Fee, Payout and ProfitPoshmark seller fee, payout and profit, plus the price for a target profit. US and Canada.Calculators

Mercari Fee Calculator: Selling Fee, Payout and ProfitMercari 10% selling fee, payout, buyer total and profit, plus the price for a target profit.Calculators

Depop Fee Calculator: Processing Fee, Payout and ProfitDepop processing fee, selling fee by country, boosting fee, payout and profit.Calculators

Vinted Fee Calculator: What Sellers Receive and Buyers PayWhat a Vinted seller receives, what the buyer pays with the Vinted fee, and profit.Calculators

Facebook Marketplace Fee Calculator for Shipped OrdersMarketplace 10% selling fee with a $0.80 minimum, payout and profit for checkout orders.Calculators

Etsy Fee Calculator: Listing, Transaction and Processing FeesEtsy listing, transaction and payment processing fees, payout and profit. US and Canada.Calculators

Grailed Fee Calculator: Commission, Processing and ProfitGrailed commission (9% or 6%), payment processing, payout and profit.Calculators

Resale Platform Fee Comparison: Best Place to Sell an ItemSame item, seven platforms: fees, what you receive and profit, ranked.Calculators

Reselling Income Calculator: Profit and Hourly RateMonthly profit and real hourly rate from your hours, volume, sell-through and costs, with low, base and high bands you set.Calculators

How Much Can You Make Reselling on eBay? The MathThe variables behind reselling profit, worked scenarios with labelled assumptions and a sensitivity table.Calculators

Reselling Hourly Rate Calculator: Profit per HourTask-by-task time budget from sourcing to returns, and the profit per sale needed for your target hourly rate.Calculators

Hold or Markdown Calculator for Unsold InventoryKeep listed, mark down or liquidate: expected value with capital and storage holding costs.Calculators

Is a Storage Unit Worth It for Reselling? CalculatorRent per item, break-even stock level and optional FBA storage cost per unit from your own rates.Calculators

Reseller Bankroll Calculator: Capital Turnover and ROIWhole-item reinvestment cycles, annualised return and speed versus margin side by side.Calculators

Chance an Item Sells in 30, 60 or 90 Days CalculatorGeometric model from your monthly sell probability, with expected sales for a batch of listings.Calculators

eBay UK Fee Calculator 2026: Final Value Fee and ProfiteBay UK business seller fees: category percentage, 30p or 40p order fee, regulatory fee, VAT, payout and profit.Calculators

eBay UK Private Seller Fees CalculatorUK private seller fees: no final value fee, 300 free listings, 35p listing fee, 3% overseas delivery fee.Calculators

eBay UK Shop Subscription Cost CalculatorCompare eBay UK Basic, Featured and Anchor Shops with no Shop on monthly listing fees and VAT.Calculators

eBay Canada Fees Calculator 2026: Final Value FeeeBay.ca final value fee by category, per-order fee, tax and shipping base, international fee, payout and profit.Calculators

eBay Australia Fee Calculator: Free Selling and GSTeBay Australia free selling and Pro Starter fees, A$0.30 order fee, GST, payout and profit.Calculators

Etsy Fees UK Calculator: Processing and Regulatory FeeEtsy UK fees: 6.5% transaction, 4% + 20p processing, 0.48% regulatory fee, listing fee, VAT, profit.Calculators

Etsy Fees Australia Calculator: Processing and ListingEtsy Australia fees: 6.5% transaction, 3% or 4% + A$0.25 processing, listing fee, payout and profit.Calculators

Erlang C Calculator: Call Center Staffing With ShrinkageAgents needed for a service level from call volume and handle time, with shrinkage.Calculators

Erlang B Calculator: Trunks and Blocking ProbabilityTrunks or lines needed for a blocking target, and blocking for the lines you have.Calculators

M/M/c Queue Calculator: Wait Time, Queue Length, UtilizationUtilization, wait time and queue length for a multi-server queue.Calculators

Little's Law Calculator: Solve L, Arrival Rate or Wait TimeSolve items in system, arrival rate or time in system from the other two.Calculators

Server Utilization vs Latency Calculator: Queueing CurveResponse time versus utilization, and the busiest a server can run for a latency target.Calculators

Requests Per Second to Concurrent Users CalculatorRequests per second to concurrent requests or users, and back, with think time.Calculators

Thread Pool Size Calculator: Cores, Wait Time and ComputeThreads from cores, utilization and the wait-to-compute ratio.Calculators

Sell-Through Rate Calculator Sell-through rate, days to clear and units needed for a target Calculators

Economic Order Quantity (EOQ) CalculatorOrder size that minimises ordering plus holding cost.Calculators

Safety Stock Calculator: Service Level Z-Score FormulaSafety stock calculator: enter service level, demand variability and lead time to get the z-score, safety stock and reorder point. Optional lead-time variability.Calculators

Days of Inventory on Hand Calculator: DOH and DSI FormulaDays of inventory on hand calculator: divide average inventory by cost of goods sold and multiply by days in the period. Also shows inventory turnover.Calculators

Lead Time Demand Calculator: Demand During Lead TimeLead time demand calculator: average demand times lead time, plus the one-standard-deviation range if you enter demand variability.Calculators

Inventory to Sales Ratio Calculator: Formula and MeaningInventory to sales ratio calculator: divide inventory by sales for the same period. Shows the ratio, its inverse and inventory as a percent of sales.Calculators

Backorder Rate Calculator: Formula and PercentageBackorder rate calculator: backordered orders (or lines or units) divided by total, as a percentage, with the matching in-stock rate.Calculators

Order Fill Rate Calculator: Unit and Order Fill RateFill rate calculator: units filled as a percentage of units ordered, and orders shipped complete as a percentage of orders received.Calculators

Service Level Z-Score Calculator: Z for Safety StockService level z-score calculator: convert a cycle service level to the z-value used in safety stock formulas, or a z-score back to a service level.Calculators

GMROI Calculator: Gross Margin Return on InventoryGross profit per dollar of inventory, turns and target stock.Calculators

Stripe Fee Calculator: Fee and Net Per SaleStripe fee and net per sale from your percentage and fixed fee, plus the price that nets the full amount.Calculators

PayPal Fee Calculator: Fee and Net Per SalePayPal fee and net per sale from your percentage and fixed fee, with an international add-on and the price that nets the full amount.Calculators

Square and Shopify Payments Fee CalculatorFee and net per sale at Square or Shopify Payments rates, with editable percentages and the price that nets the full amount.Calculators

Processing Fee Gross-Up Calculator: Price to Net a TargetPrice to charge so you net a target amount after a percentage and fixed processing fee.Calculators

Credit Card Surcharge Calculator: Cap and Cost CheckSurcharge needed to cover your card fee, what you keep, and a check against a cap you set. Rules vary by place.Calculators

Currency Conversion Fee Calculator for MerchantsConversion add-on on top of the base card fee for foreign-currency sales, per sale and per year.Calculators

Chargeback Cost Calculator: Loss and Break-Even RateLoss on a lost dispute, expected result at your win rate and the dispute rate that erases profit.Calculators

Refund Fee Loss Calculator: Processing Fees You Do Not Get BackProcessing fees kept by the processor on refunded orders, per refund and per year.Calculators

Effective Processing Rate Calculator from Your StatementAll-in effective rate from a merchant statement, cost per transaction and yearly savings at a target rate.Calculators

Inventory Carrying Cost CalculatorYearly holding cost, carrying cost rate and cost per unit.Calculators

Stockout Cost Calculator: What Running Out of Stock CostsMargin lost per stockout from walk-aways and substitutes.Calculators

ABC Inventory Analysis CalculatorSort pasted SKUs into A, B and C classes by value.Calculators

FIFO vs LIFO vs Weighted Average Cost CalculatorCOGS, ending inventory and profit under three cost methods.Calculators

Reseller Tax CalculatorWhat you keep after fees, costs and 2026 US tax.Calculators

Inventory Shrinkage CalculatorShrinkage in dollars and percent of sales from a count.Calculators

How Much to Order: Newsvendor Calculator for One-Off StockHow many to order for one-off or perishable stock.Calculators

Etsy Offsite Ads Fee Calculator Itemized Etsy fees, 12% vs 15% offsite ads, net profit and break-even Calculators

eBay Promoted Listings Fee Calculator Ad fee on item + shipping + tax, profit after the fee and break-even ad rate Calculators

Etsy Ads ROI Calculator ROAS, ACOS, profit after ads and the break-even CPC for Etsy Ads Calculators

Walmart Sponsored Products Break-Even Calculator Break-even ACOS, ROAS and maximum CPC for Walmart Connect Sponsored Products Calculators

TikTok Shop Ads Break-Even Calculator Referral fee, returns and creator commission turned into break-even ROAS, ACOS and CPC Calculators

Stripe Dispute Fee Calculator Stripe dispute fee, countered fee and Smart Disputes compared at your win rate Calculators

PayPal Chargeback Fee Calculator PayPal chargeback and dispute fees, expected cost and fight-versus-refund break-even Calculators

Payout Hold and Reserve Cost Calculator Cash locked by a rolling reserve or payout hold, and its yearly cost Calculators

Amazon MCF Fee Calculator Multichannel Fulfillment fee per unit by size tier, weight and order units Calculators

Return Label Cost Per Order Calculator Cost of one returned order, return cost per order and break-even return rate Calculators

Invoice Factoring Cost Calculator Compare two factoring offers: cash now, total cost, annualized rate

Workers' Comp Premium & Audit Calculator Premium from your policy rates and estimated vs audited payroll Calculators

Buy Me a Coffee fee calculator Take-home from Buy Me a Coffee payments after 5%, Stripe fees, payout and surcharges. Calculators

YouTube Super Chat and membership revenue split What you receive from channel memberships and Super Chats: 70% after tax and store fees. Calculators

Creator payout and currency conversion fee calculator Conversion and payout fees on creator earnings, and what fewer payouts save. Calculators

Creator platform switch break-even calculator Monthly gain, move cost and months to break even when switching creator platforms. Calculators

Membership tier price fee gross-up calculator Price each membership tier so you keep your target after percentage and fixed fees. Calculators

Tip jar small payment fee calculator Fee share on small tips and the smallest payment that keeps fees under your limit. Calculators

YouTube Earnings Calculator Revenue per month and year from views and RPM, or from CPM and the 55% ad share. Calculators

Patreon Fee Calculator Take-home from pledges after the 10% fee, processing and payout fees. Calculators

Substack Fee Calculator Paid newsletter take-home after the 10% fee and card fees, from free subscribers and conversion. Calculators

Gumroad Fee Calculator Net per sale and monthly take-home at 10% + $0.50 direct and 30% Discover. Calculators

Kickstarter Fee Calculator Payout after the 5% fee, 3% + $0.30 processing and micropledge fees. Calculators

Indiegogo Fee Calculator Payout after the 5% platform fee and 3% + $0.20 on each payment. Calculators

Fiverr Fee Calculator What a seller keeps after the 20% commission, and the price for a target. Calculators

Upwork Fee Calculator Take-home after the 0% to 15% service fee, and the rate to bill. Calculators

Teachable Transaction Fee Calculator Take-home on Starter, Builder and Growth after fees and plan price. Calculators

Kajabi Fee Calculator Processing and plan cost against sales on Basic, Growth and Pro. Calculators

Thinkific Fee Calculator Plan cost and processing against course sales, and sales for a goal. Calculators

Zazzle Royalty Calculator Royalty after the 5% Excess Royalty Fee and the Marketing Royalty Fee. Calculators

Patreon vs Substack vs Gumroad Fees Take-home from the same payments on each platform, using published fees. Calculators

Podcast Sponsorship Revenue Calculator Ad revenue from downloads, ad slots, CPM, sell-through and cuts. Calculators

Newsletter Sponsorship Revenue Calculator Sponsor income from subscribers, open rate, CPM, placements and sell-through. Calculators

Affiliate Commission Calculator Commission from clicks, conversion, order value and rate, plus earnings per click. Calculators

Influencer Sponsored Post Rate Calculator A low-to-high sponsored post rate from followers, engagement and your starting rate. Calculators

YouTuber Hourly Rate Calculator Profit per hour of work for a video, and the views needed to hit your pay goal. Calculators

Renovation Budget Calculator Base estimate, allowances and fees plus contingency, with overrun tracking Calculators

Kitchen Remodel Budget Calculator Split a kitchen budget into cabinets, labour, appliances and more Calculators

Bathroom Remodel Budget Calculator Split a bathroom budget into labour, vanity, fixtures, tile and plumbing Calculators

Contractor Quote Comparison Calculator Compare contractor bids on scope, markup and deposit, side by side Calculators

Labour vs Materials Cost per Square Foot Labour and materials cost per square foot and per square metre Calculators

DIY vs Hire Renovation Savings DIY or hire: savings after materials waste, tool rental and your time Calculators

Renovation Loan: HELOC vs Personal Loan Monthly payment and interest for a HELOC versus a personal loan Calculators

Renovation Timeline Planner Phases, order-by date for long-lead items and a schedule buffer Calculators

Renovation ROI vs Resale Value Percent of a renovation cost recouped at resale, after selling costs Calculators

Fundraiser Profit CalculatorItems sold x price x your group’s share, minus costs.Calculators

Fundraising Goal Per Participant CalculatorWhat each participant needs to raise, and how many gifts that is.Calculators

Raffle Odds CalculatorSingle or multiple prizes, with the expected value of your tickets.Calculators

50/50 Raffle Payout CalculatorJackpot, your group’s share and tickets needed for a target.Calculators

Bake Sale Profit CalculatorProfit, break-even sales and the price that covers your costs.Calculators

Silent Auction Net Proceeds CalculatorStarting bid, reserve and what your group nets on an item.Calculators

Gala Break-Even Ticket Price CalculatorThe ticket price that covers costs after sponsorships.Calculators

Cost Per Dollar Raised CalculatorWhat it costs to raise a dollar, and the return on fundraising spend.Calculators

Donor Retention Rate CalculatorRetention, lapsed donors and growth in donor count.Calculators

Church Tithe CalculatorYour chosen percentage, on gross or net pay.Calculators

Twitch and Kick Sub Revenue Calculator Twitch take-home by tier and split, Plus Points, and the same subs on Kick. Calculators

Twitch Bits Revenue Calculator Bits cheered to dollars at the published per-Bit rate, with months to payout. Calculators

Twitch Affiliate Requirements Checker Check followers, hours, days and viewers against the updated Affiliate criteria. Calculators

YouTube Sponsorship Rate Calculator A sponsored video rate from average views and your CPM, plus offer check. Calculators

YouTube 4,000 Watch Hours Calculator Months to the YouTube Partner Program tiers at your subscriber and watch-hour pace. Calculators

YouTube Shorts vs TikTok Creator Rewards Eligibility Checker Check your numbers against the published monetization thresholds Calculators

Clipping vs Creator Fund Programs Campaign pay against platform revenue share, with your own rates Calculators

Clipping Copyright and Permission Checklist Check permission before you post a clip of someone else's video Calculators

YouTube Views to First Payout Calculator Views and months to reach the $100 AdSense payment threshold at your RPM. Calculators

Creator Self-Employment Tax Set-Aside Calculator Take-home and quarterly set-aside from net creator earnings and your tax rate. Calculators

Creator Income Mix Take-Home Calculator Ads, sponsorships, affiliate, UGC and fan funding to take-home pay. Calculators

Creator Effort vs Reward Calculator Net hourly pay and break-even views across three RPM scenarios. Calculators

Creator First Payout Timeline Calculator Months until a balance clears the payout threshold, with payment timing. Calculators

Creator Business Expenses Checklist General deductible-category checklist with a tax set-aside effect. Calculators

How Creator Income Is Taxed, Explained SE tax, the 92.35% rule, 1099 forms and quarterly payments explained. Calculators

Blog Income Calculator Monthly blog income from sessions, RPM, affiliate and sponsors, less costs. Calculators

Website RPM Calculator Page, session and impression RPM from earnings and traffic. Calculators

Mediavine and Raptive Requirements Checker Compare traffic and revenue with Mediavine and Raptive requirements, dated and editable. Calculators

Firebrick Lining Calculator Split firebricks and refractory mortar for a firebox Calculators

Brick Arch Calculator Segmental arch radius, voussoir count and joint cut angle Calculators

Brick Bond Pattern Waste Guide Running, stack, Flemish and English bond brick counts with waste

Brick Pallet Coverage Calculator Pallets of brick to order, wall area per pallet and leftovers Calculators

Bricks per Square Foot Chart Brick counts and mortar by size and joint Calculators

Brick Course Height Calculator Courses to wall height and height to courses Calculators

Nominal vs Actual Lumber Size Chart 2x4 to 2x12 actual dry sizes and board feet Calculators

Board Foot Cut List Calculator Total board feet, MBF and cost for a whole project Calculators

Lumber Price per Board Foot Converter Price per piece, linear foot, board foot and MBF Calculators

Drywall Sheets by Room Calculator Sheets for walls and ceiling from room dimensions Calculators

Paver Count Calculator How many pavers from area, size and joint width Calculators

Mulch Bags to Cubic Yards Calculator Bags, cubic yards and coverage at any depth Calculators

Concrete Block Wall Module Planner Courses, units and opening sizes on the 8 in. module Calculators

Brick Wall Calculator How many bricks for a wall: area-only, metric, waste, pallets and cost Calculators

Concrete Calculator Calculate concrete volume needed for slabs, footings, and columns Calculators

Deck Material Calculator Calculate deck materials needed including boards, joists, posts, Calculators

Drywall Calculator Calculate drywall sheets needed for walls and ceilings Calculators

Fence Calculator Calculate fence materials needed including posts, pickets, rails, Calculators

Flooring Calculator Calculate flooring materials needed for any room Calculators

Gravel & Aggregate Calculator Calculate cubic yards and tons of gravel needed for driveways, paths, and paver base Calculators

Insulation Calculator Calculate batts needed for walls and attics, with recommended R-values by zone Calculators

Lumber Calculator Calculate board feet for lumber projects Calculators

Mulch & Topsoil Calculator Calculate cubic yards, cubic feet, or bags of mulch or topsoil for a garden bed Calculators

Seed Starting Dates Calculator Sow and plant-out dates for 13 common crops, counted back from your last spring frost Calculators

Lawn Fertilizer Calculator Pounds of product, bags and coverage per bag from the N percentage and a target nitrogen rate Calculators

Sod Calculator Rolls and pallets of sod for a lawn, with a waste allowance and editable roll sizes Calculators

Potting Soil for Containers Litres, cubic feet and quarts of potting mix for round or rectangular pots, and bags to buy Calculators

Chicken Coop Size Calculator Coop area, run area, roost length and nest boxes for a backyard flock Calculators

Horse Hay Per Day Calculator Pounds of hay a day, month and year for a horse by body weight, with waste allowance Calculators

Hay Bales Needed for Winter Calculator How many hay bales to buy for the winter from horses, daily hay, bale weight and waste Calculators

Horse Weight Tape Calculator Estimate a horse’s weight from heart girth and body length, in inches or centimetres Calculators

Horse Pasture Acreage Calculator Acres needed for your horses by daily turnout time, or how many horses your pasture supports Calculators

Horse Manure Volume Calculator Horse manure and bedding per day and year, and storage space in cubic feet and yards Calculators

Chicken Feed Per Day Calculator Feed per day and month for laying hens, days a bag lasts, bags per year and monthly cost Calculators

Egg Production and Feed Cost Calculator Eggs a week and a year from your hens and lay rate, plus feed cost per dozen and per egg Calculators

Goat and Sheep Hay Per Day Calculator Pounds of hay a day for goats and sheep from body weight, with waste and bale count Calculators

Livestock Water Per Day Calculator Gallons of water a day for horses, goats and laying hens, and days a tank lasts Calculators

Pool Pump Turnover Calculator Hours per turnover, run time for a target and the flow needed Calculators

Pool Heating Time Calculator BTU needed and hours to heat a pool to a target temperature Calculators

Fertilizer PPM Calculator Grams for a target nitrogen ppm, or N, P and K ppm from a dose Calculators

Raised Bed Soil Mix Calculator Cubic feet and bags of each ingredient for Mel's Mix, topsoil and compost, or a custom ratio Calculators

Garden & Water Utilities Compost ratios, seed spacing, lawn seed bags, irrigation use, rainwater tanks, pool volume, pond planning, and garden-bed planning Compost ratios, seed spacing, irrigation use, rainwater tanks, roof yield, rain gardens, pool volume, pond planning, and garden-bed planning Calculators

TDS and Conductivity Converter (ppm, µS/cm) Convert TDS ppm and conductivity µS/cm with an editable factor, checked against the 500 mg/L objective Calculators

Nitrate-N to Nitrate Converter Convert nitrate and nitrite between mg/L as N and as the ion, compared with EPA and Health Canada limits Calculators

Bleach to Purify Water Calculator Drops of 6% or 8.25% household bleach for emergency water, from the US EPA table Calculators

How Much Bleach to Shock a Well Cups of household bleach to shock chlorinate a well by diameter and water depth, from Oregon State Calculators

Water Filter Cost per Gallon Calculator Cost per gallon and per year for a filter, limited by rated capacity or replacement time Calculators

Reverse Osmosis Waste Water Calculator RO waste ratio to recovery percent, with gallons wasted per day and per year and water cost Calculators

Paint Calculator Calculate how much paint you need for walls, ceilings, and trim Calculators

Rafter Length & Roof Pitch Calculator Common and hip rafter length with pitch in X:12, degrees, percent Calculators

Shelf Sag Calculator How much a shelf will bend, in inches and L/ratio, from wood stiffness and load Calculators

Voltage Drop & Wire Size Calculator Volts and percent drop by AWG, distance and metal, plus the smallest wire under 3% Calculators

Roofing Calculator Calculate roofing materials needed including shingles, Calculators

Shed Roof Material Takeoff Roof area, decking sheets, covering packages, and trim Calculators

Wainscoting Batten Spacing Equal panel widths and batten marks in 1/16 inch

Baluster Spacing Rail count, exact gap and station marks, level or stair rake

Wood Equilibrium Moisture Content Calculator EMC from temperature and humidity, dry and humid season

Wood Movement Calculator How much a board or tabletop swells or shrinks across the grain

Wood Moisture Content Calculator Moisture content from wet and oven-dry weights, and target weight

Miter and Bevel Angle Calculator Saw settings for frames, N-sided boxes and sloped planters or hoppers

Box Joint Finger Calculator Odd finger count and exact finger width for a board width

Shelf Spacing Calculator Equal openings between shelves and shelf heights from the bottom

Wood Finish Quantity Calculator Stain, varnish or polyurethane to buy from area, coats and label coverage

Panel Glue-Up Board Count Calculator Boards needed for a tabletop width with joint loss and trim

Firewood Cord Calculator Stack or truck load to cords, face cords and price per cord

Area Rug Size Calculator Rug range for your room and seating group, front legs or all legs on Calculators

Curtain Rod Height and Width Rod height above the frame, rod length, panel width and curtain length Calculators

Wall Art Hanging Height and Gallery Wall Hang at 57 in centre, gallery wall gaps, frame positions and nail heights Calculators

Chandelier Size and Hanging Height Fixture diameter by room or table, and hang height above the table Calculators

Dining Table Size Calculator Table length or diameter for your seats, checked against room clearance Calculators

Coffee Table Size and Clearance Table length from sofa length, depth that keeps 14 to 18 in of clearance Calculators

Lumens Needed Per Room Total lumens for a room from area and recommended footcandles, with lux Calculators

Recessed Light Spacing Calculator Can light grid from ceiling height: spacing, wall distance and count Calculators

Curtain Fabric Widths, metres and yards, plus lining

Baseboard Cut List Optimizer Boards to buy and per-board cuts, with kerf and splices Calculators

Wall Framing Takeoff Opening-aware studs, plates, and sheathing with adjustable assumptions Calculators

Sump Pump Size & Cycle Turn a basin fill test into inflow GPM, required flow, and cycles per hour Calculators

Well Pressure Tank Sizing Drawdown, acceptance factor, and total tank volume from pump GPM and pressure switch Calculators

Septic tank size by bedrooms Minimum tank gallons for your bedroom count under four published state rules Calculators

Septic tank capacity in gallons Gallons and liters from tank dimensions for rectangular, vertical and horizontal round tanks Calculators

How often to pump a septic tank Years between pump-outs from tank size and number of people, from an extension table Calculators

Septic drain field size Absorption area and trench length from design flow, percolation rate and trench width Calculators

Well casing gallons per foot Gallons per foot of casing and stored water from diameter, depth and static water level Calculators

Well pump total dynamic head Total dynamic head, water horsepower and brake horsepower for a well pump Calculators

Well pump GPM needed Pump GPM from fixture count or peak simultaneous use, with storage for a low-yield well Calculators

French Drain Planner Plan fall, changing depth, gravel, fabric, pipe lengths, and spoil Calculators

Pressure Washer Nozzle Size Calculator Nozzle size from GPM and PSI, with pressure at neighboring sizes

Gutter & Downspout Flow Roof runoff in gpm and downspout load against your rated capacity Calculators

Cabinet Door Size & Overlay CalculatorOverlay and inset door sizes, pairs, and a fractional-inch cut listCalculators

Stair Stringer Calculator Calculate risers, treads, run, and stringer length Calculators

Lot Coverage & FAR Floor area ratio, lot coverage and remaining buildable area Calculators

Paver Base & Bedding Sand Estimate aggregate and sand for patios and driveways Calculators

Epoxy Coverage Calculator Gallons for floor coatings, flood coats and deep pours with kit split Calculators

Retaining-Wall Drainage Stone Drainage-zone and base-layer stone quantity with supplier density Calculators

Concrete Block & Mortar Estimate blocks, mortar volume, and bag count Calculators

Tile & Grout Calculator Estimate tile count, grout, and thinset materials Calculators

Wallpaper Calculator Calculate wallpaper rolls needed for any room Calculators

Cooking Unit Converter Cooking measurement converter for recipes Calculators

Shared DNA Centimorgan Calculator Average and range of shared cM for each relationship, and the relationships a DNA match could be Calculators

Ancestors per Generation Calculator Number of ancestors in each generation, their names, running total and average DNA share Calculators

Generations to Years Calculator Years to generations, and the estimated birth year of an ancestor from your birth year Calculators

Census Age to Birth Year Calculator Birth date window from a census age, with England and Wales and US census dates and the 1841 rounding rule Calculators

Birth Date from Age at Death Calculator Birth date or window from the date of death and the age on a gravestone, in years, months and days Calculators

Old Style New Style Date Converter Julian to Gregorian dates with the 25 March year start and double dates used in Britain before 1752 Calculators

Roman Numeral Year Converter Read years on gravestones and monuments in Roman numerals, or write any number from 1 to 3999 Calculators

Pool Volume Calculator Gallons and litres for any pool or hot tub, plus turnover time

Circle Skirt Fabric Waist radius, cut layout and yardage for any circle skirt

Yarn Yardage Calculator Skeins needed, partial ball yardage, weight swap, needle and hook sizes

Turkey Thaw & Roast Time Calculator Turkey size, thaw and roast time from Health Canada and USDA charts Calculators

Recipe Scaler Rescale every ingredient to a new serving size Calculators

Length Unit Converter Length converter for metres, feet, inches, kilometres, miles, Calculators

Cm to inches Converter Centimetres to inches, with the exact 2.54 factor and a 1 to 100 cm table Calculators

Inches to cm Converter Inches to centimetres, with the exact 2.54 factor and a 1 to 100 inch table Calculators

Kg to lbs Converter Kilograms to pounds, using the exact 0.45359237 definition and a 1 to 100 kg table Calculators

Lbs to kg Converter Pounds to kilograms, using the exact 0.45359237 definition and a 1 to 100 lb table Calculators

Celsius to Fahrenheit Converter Celsius to Fahrenheit with the exact 1.8 and 32 formula, negatives, and a 1 to 100 table Calculators

Fahrenheit to Celsius Converter Fahrenheit to Celsius with the exact (°F - 32) ÷ 1.8 formula, negatives, and a 1 to 100 table Calculators

Feet to meters Converter Feet to metres using the exact 0.3048 international foot and a 1 to 100 ft table Calculators

Miles to km Converter Miles to kilometres with the exact 1.609344 factor and a 1 to 100 mile table Calculators

Mm to inches Converter Millimetres to inches with the exact 25.4 factor and a 1 to 100 mm table Calculators

Litres to gallons Converter Litres to US and Imperial gallons with exact factors and a 1 to 100 L table Calculators

SI Prefix Converter Convert between pico, nano, micro, milli, kilo, mega, giga and tera and all other SI prefixes exactly Calculators

Temperature Converter Temperature converter for Celsius, Fahrenheit, and Kelvin Calculators

Volume Converter Volume converter for litres, gallons, cups, millilitres, pints, Calculators

Weight & Mass Converter Weight and mass converter for kilograms, pounds, ounces, grams, Calculators

GSM to oz/yd² Fabric Weight gsm to oz/yd² and back, denim and canvas weights, piece weight

Pressure Converter Convert psi, kPa, bar, atm, mmHg, inHg, and torr Calculators

SMD Resistor Code Calculator Decode 3-digit, 4-digit, R and EIA-96 chip resistor codes Calculators

Debt Consolidation Calculator Debt consolidation calculator Calculators

Credit Card Payoff Calculator Credit card payoff calculator Calculators

Debt Payoff Calculator Debt payoff calculator Calculators

Credit Utilization Calculator Balance-to-limit ratio per card and overall, payoff to a target Calculators

Age Calculator Age calculator Calculators

Baby Formula Amount Calculator Ounces and mL of formula per day and per bottle by weight and age Calculators

Baby Formula Cost Calculator Formula cost per day, month and year from tin price, yield and daily intake Calculators

Diaper Cost Calculator Cost per diaper, month and year, with two packs compared side by side Calculators

Breast Milk Storage Calculator Use-by time for pumped, refrigerated, frozen and thawed breast milk (CDC) Calculators

Child Height Prediction Calculator Target adult height for a boy or girl from the parents' heights, with the likely range Calculators

Car Seat Stage Calculator Rear-facing, harness, booster or seat belt by age, weight and height, with Canadian provincial rules Calculators

Childcare Cost Split Calculator Split daycare costs between two parents equally, by income or by percentage Calculators

Kids Allowance Calculator Weekly allowance by age and what each child earns per hour of chores Calculators

Kids Activity Cost Calculator Yearly and monthly cost of sports, lessons and clubs with the cost per session Calculators

Tutoring Cost Calculator Tutoring cost per session, month and school year, with a second rate to compare Calculators

Childcare Cost Per Hour Calculator Real cost per hour of daycare, a nanny or after-school care, side by side Calculators

School Lunch Cost Calculator Packed vs bought school lunch cost per year for one or more kids Calculators

Birthday Party Cost Calculator Total party cost with the cost per child guest and per guest Calculators

Family Grocery Budget Calculator USDA food plan cost per person and per family by age, in US dollars Calculators

Baby Cost Calculator Canadian baby cost calculator Calculators

BMI Calculator BMI calculator Calculators

BMR Calculator Basal metabolic rate (Mifflin-St Jeor) Calculators

Budget Calculator Canadian personal budget calculator Calculators

Calories Burned by Activity Calculator Estimate calories burned using published MET values Calculators

Final Exam Grade Needed Calculator The score you need on your final to reach a target course grade Calculators

Class Rank Percentile Calculator Turn a class rank and class size into a percentile Calculators

Currency Converter Currency converter Calculators

Historical Exchange Rate Calculator Convert CAD at the Bank of Canada daily rate on any date since 2017 Calculators

Date Calculator Date calculator Calculators

Education Cost Calculator Estimate Canadian post-secondary education cost Calculators

Emergency Fund Calculator Calculate how big your emergency fund should be based on your Calculators

Evacuation Time Planner Add pack-and-load time, drive time in traffic and a buffer to plan how long an evacuation takes Calculators

Estate Planning Calculator Canadian estate planning calculator Calculators

Fuel Cost Calculator Trip fuel cost from distance, efficiency, and price Calculators

EV vs Gas Break-Even Calculator When an EV's fuel savings pay off its price premium Calculators

Flight Carbon Footprint Calculator kg CO2e per passenger between two airports, by cabin class Calculators

SSDI Back Pay Calculator Months owed, gross back pay and net after the attorney fee cap Calculators

Cost Per Wear Calculator Cost per wear now and projected, wears to hit a target, compare two items Calculators

Laundry Care Symbol Decoder Build any care symbol and get the plain-English instruction, ISO and US Calculators

Tire DOT Code Decoder Week and year a tire was made, its age, and the replace-by guidance Calculators

Hair Dye Developer Mixing Calculator Grams of colour and developer for any ratio, plus diluting developer with water Calculators

Tire Size Comparison and Speedometer Error Calculator Diameter, width, lift and true speed when two tire sizes are swapped Calculators

Bra Size Converter (US, UK, EU, FR, AU, JP) Band and cup in every country at once, with the UK FF vs US DDD trap flagged Calculators

Ontario Electricity Plan Calculator Compare OEB Time-of-Use, Ultra-Low Overnight and Tiered plans Calculators

Humidex Calculator How hot it feels, with the Environment Canada comfort categories Calculators

CDIC Coverage Calculator See what CDIC insures per bank and category, and the uninsured excess Calculators

Wind Chill Calculator Real Environment Canada wind chill formula, not the US version Calculators

Heat Index Calculator Apparent temperature from air temperature and humidity Calculators

Degree Days Calculator Heating, cooling, or growing degree days from daily temperatures Calculators

Frost-Free Season Calculator Elapsed growing-season length between two frost dates Calculators

Climate Anomaly Calculator Compare observations with a climate normal Calculators

Dew Point Calculator Dew point from air temperature and relative humidity, in Celsius and Fahrenheit Calculators

Relative Humidity Calculator Relative humidity from air temperature and dew point Calculators

Wet-Bulb Temperature Calculator Wet-bulb temperature from air temperature, humidity and station pressure Calculators

Absolute Humidity Calculator Grams of water vapour per cubic metre from temperature and relative humidity Calculators

Cloud Base Height Calculator Convective cloud base in feet and metres from the temperature and dew point spread Calculators

Density Altitude Calculator Density altitude from station pressure, temperature and dew point Calculators

Air Density Calculator Density of moist air in kg/m3 from temperature, humidity and pressure Calculators

Rainfall to Volume Calculator Litres and US gallons from rain gauge depth and area Calculators

Sunrise and Sunset Calculator Sunrise, sunset, solar noon, civil twilight and day length for any place and date Calculators

ACT Composite Score Calculator English, math, reading average without Science Calculators

GPA Calculator GPA calculator Calculators

Grade Percentage Converter Convert a percentage to a letter grade, US or Ontario scale Calculators

Canada CPI Inflation Calculator Real Statistics Canada CPI, 1995 to 2026: purchasing power and raise to keep pace Calculators

Inflation Calculator Inflation calculator Calculators

Lean Body Mass Calculator Estimate fat-free mass (Boer formula) Calculators

Life Insurance Needs Calculator Estimate coverage using the DIME method Calculators

Moving Cost Estimator Typical moving cost range by distance, home size, and movers vs. DIY Calculators

Moving Box Calculator How many boxes you need by home size, by box type, with an optional cost from your own prices Calculators

Moving Truck Size Calculator Truck size from home size or the volume and weight of your belongings, using U-Haul figures Calculators

Moving Labor Cost Calculator Hired movers: crew rate, billable hours, minimum, fees and tip from your own quote Calculators

Moving Truck Fuel Cost Calculator Fuel for a rental truck by truck size, distance and pump price, with fill-ups Calculators

Cost of Living Comparison Calculator Percent change in monthly costs and the income that keeps up, from your own numbers Calculators

Moving Checklist Timeline and Countdown Days until your move and a dated checklist, including utilities and change of address Calculators

Storage Unit Size Calculator The smallest standard unit for your belongings by volume or truck load, with U-Haul unit descriptions Calculators

Move-In Cost Calculator Cash needed to move into a rental: rent, deposits, fees, movers and supplies Calculators

Prorated Rent Calculator Rent for a partial month by actual days, a 30-day month or a 365-day year Calculators

Roommate Rent Split Calculator Split rent by room size, income or equal share, with bathroom and parking adjustments Calculators

Jet Lag Calculator Estimate jet lag recovery time after crossing time zones Calculators

Percentage Calculator Percentage calculator Calculators

Dog & Cat Age Calculator Convert dog or cat years to human years, the real AVMA formula Calculators

Dog & Cat Calorie Calculator Daily calories from RER = 70 × kg^0.75 and AAHA life-stage factors Calculators

Pet Cost Calculator First-year and annual cost of owning a dog or cat, OVMA-sourced Calculators

Savings Goal Calculator Savings goal calculator Calculators

Minecraft Nether Portal Coordinates Calculator Overworld/Nether 8:1 conversion, portal link range Calculators

Ring Size Converter Convert ring sizes: US, UK, and mm Calculators

Shoe Size Converter Convert shoe sizes: US, UK, and EU Calculators

Tip Calculator Tip calculator Calculators

Tipping by Country Restaurant tipping customs for travelers, country by country Calculators

Unit Converter Unit converter for length, weight, volume, temperature, area, and Calculators

Waist-to-Hip Ratio Calculator WHR and WHO health-risk category Calculators

Waist-to-Height Ratio Calculator WHtR and NICE central-adiposity risk category Calculators

VO2 Max Calculator Estimate aerobic fitness from resting and max heart rate Calculators

Wedding Budget Calculator Canadian wedding budget calculator Calculators

RSVP & Catering Headcount Calculator Estimate expected attendance from invited count and RSVP rate Calculators

Makeup & Skincare Expiry Date Calculator (PAO) Discard-by date from the PAO symbol and the date you opened it Calculators

Skincare Cost Per Use Calculator Cost per application, month and year for each product, plus money lost past the PAO Calculators

Makeup Cost Per Wear Calculator Cost per wear for each makeup product, with the wears it needs to reach your target Calculators

Beauty Subscription Box Value Calculator Real saving per beauty box from the products you would use, with break-even use share Calculators

Drugstore vs Luxury Skincare Savings Calculator Price per ml, yearly cost and saving from swapping luxury skincare for drugstore Calculators

Eye Makeup Replacement Cost Calculator Yearly cost of replacing mascara and eye makeup on schedule against your current habit Calculators

Travel Toiletry Kit Size Calculator How much of each toiletry to pack and how many 100 ml carry-on containers it takes Calculators

Dermatologist Visit Cost Per Year Calculator All-in yearly cost of dermatology: visits, prescriptions, procedures, travel and time Calculators

Gel Manicure Salon vs At-Home Calculator Yearly cost of gel manicures at the salon or at home, and the kit break-even Calculators

Facial and Spa Membership vs Pay-Per-Visit Calculator Whether a facial or spa membership beats paying per visit, with break-even visits Calculators

Perfume Sprays Per Bottle and Cost Per ML Calculator Sprays in a 30, 50 or 100 ml bottle, cost per ml, per spray and per wear Calculators

Perfume Decant vs Full Bottle Calculator Price per ml of a decant or sample against the full bottle, the markup, and the break-even number of decants Calculators

Perfume Bottle Size Value Calculator Compare 30, 50 and 100 ml bottles by price per ml, months to finish and price per ml you actually use Calculators

Perfume Gift Set Value Calculator Set price against buying every item separately and against only the items you would buy anyway Calculators

Perfume Size ml to oz Converter Perfume ml to fluid ounces and back, common bottle sizes and the 100 ml / 3.4 oz carry-on check Calculators

Candle Burn Time Calculator Hours a candle burns from its wax weight and a burn rate you measure, with cost per hour and 3-hour sessions Calculators

Perfume Travel Amount Calculator ml of perfume for your trip, the travel atomizer size to pack and a TSA carry-on and checked-bag size check Calculators

Perfume Collection Finish Time Calculator Years to finish all your bottles at your use, and how many ml may be left past your keep time Calculators

Fragrance Layering Spray Planner Split your usual sprays across two or three scents by ratio, with ml used and wears per bottle Calculators

Perfume Cost Per Hour Calculator Cost per wear and per hour of scent for one or two perfumes, and hours a monthly budget buys Calculators

Perfume Dilution Calculator ml of fragrance concentrate and alcohol for a target strength, or how much to add to dilute Calculators

DIY Cosmetic Formula Scaler Percent-by-weight recipe to grams for any batch size, or grams back to percent Calculators

SPF Percentage Calculator Share of sunburn-causing UV let through at SPF 15, 30, 50 or 100, and two SPFs compared Calculators

Laser Hair Removal Session Planner Every laser hair removal appointment date and the total course cost Calculators

Waxing Schedule Planner Next wax dates from regrowth, the retinol pause date and yearly cost Calculators

Self-Tan Fade Planner When to apply a self-tan or spray tan for an event and when it fades Calculators

Tattoo Healing Timeline Planner Dated tattoo aftercare calendar from week one to the two-month mark Calculators

Shower and Bath Cost Calculator Cost of one shower or bath in water and heating, and per year Calculators

Hair Removal Cost Comparison Calculator Razor, wax, laser and home device cost compared year by year Calculators

Manicure and Pedicure Cost Calculator Manicure and pedicure cost per year and month with tip and breaks Calculators

Gel Manicure Cure Time Planner and Timer Layer timeline and countdown from your polish label cure times Calculators

Hair Growth Goal Calculator Months and date to reach a goal hair length, with trims and a length table Calculators

Shaving Cost Per Year Calculator Cost per shave, month and year from blade price, shaves per week and blade life Calculators

Safety Razor vs Cartridge Savings Calculator Yearly savings and months until a safety razor pays for itself Calculators

Beard Oil Dilution Calculator Essential oil drops and carrier ml for any bottle size, with a facial-safe ceiling Calculators

Beard Balm Recipe Calculator Grams of beeswax, butter, carrier oil and essential oil for any beard balm batch Calculators

Minoxidil Bottle Duration Calculator Days a bottle lasts at the dose you enter, run-out date and cost per month Calculators

Hair Shedding Count Tracker Average, median and week-on-week trend of your daily shed-hair counts Calculators

DIY Haircut Savings Calculator Barber cost per year, clipper payback in cuts, and 5 and 10 year savings Calculators

Personal Care Budget Calculator Monthly, yearly and share-of-income cost of every grooming item Calculators

52 Week Savings Challenge Calculator Week-by-week deposit schedule and total for a 52 week savings challenge, ascending, descending or random. Calculators

365 Day Savings Challenge Calculator Daily deposit, month-end totals and year total for a 365 day savings challenge that rises each day. Calculators

100 Envelope Challenge Calculator Total, per-envelope amount and weekly pace for the 100 envelope savings challenge, or work back from a goal. Calculators

Round-Up Savings Calculator Spare change saved per week, month and year by rounding purchases up to the next dollar, with optional multiplier and interest. Calculators

No-Spend Challenge Tracker Days kept, success rate, money not spent and slips left in a no-spend challenge. Calculators

Sinking Fund Calculator Monthly and per-paycheck amount to set aside for each upcoming expense, and the total across all sinking funds. Calculators

Paycheck Budget Split Calculator Split each paycheck into needs, wants and savings with the 50/30/20 rule or your own percentages. Calculators

Coin Jar Counter Total dollar value of the Canadian or US coins you count, with coin total and progress toward a goal. Calculators

Savings Goal By Date Calculator How much to save each week, two weeks, twice a month or month to reach a goal by a date, with optional interest. Calculators

Utility Bill Splitter Split an electricity, water or gas bill between roommates equally, by days present or by usage, with fixed charges shared evenly. Calculators

Roommate Bill Split When Someone Moves In or Out Split a shared bill by the day when roommates move in or out part-way through the billing period. Calculators

Grocery Receipt Splitter Split a shared grocery receipt item by item, ticking who shares each one, with tax shared in proportion. Calculators

Who Owes Whom Calculator Net each person balance and find the fewest payments that settle a group, an exact minimum for up to 8 people. Calculators

Roommate Security Deposit Split Calculator Share a returned security deposit between roommates after deductions, charged equally, by amount paid in or to one tenant. Calculators

Split Bills by Income Calculator Split rent and household bills in proportion to take-home pay (60/40, 70/30) or so everyone keeps equal money left over. Calculators

Group Trip Cost Splitter Split trip or event costs when people attend for different days, with per-expense payer and exclusions, then settle up. Calculators

Utility Bill Split by Square Footage and Occupants Split one shared utility bill between units or rooms by floor area, number of occupants or a blend of both. Calculators

Clipper Guard Size Converter Guard number to inches and millimetres, or the nearest guard for a length Calculators

Lip Balm Recipe Calculator Beeswax, butter and oil grams from a 1:3 to 1:5 ratio, plus tubes per batch Calculators

Lotion Bar Recipe Calculator Beeswax, butter, oil and essential oil grams for a lotion bar batch, with bars per batch Calculators

Sugar Scrub Recipe Calculator Sugar, carrier oil and essential oil grams from a ratio, with jar count Calculators

Bath Bomb Recipe Calculator Baking soda, citric acid and other ingredients in grams for any number of bath bombs Calculators

DIY Lotion Recipe Calculator Water, glycerin, emulsifying wax, oil and preservative grams by phase Calculators

Cosmetic Preservative Amount Calculator Grams of preservative from batch weight and usage rate, with ranges and heat limits Calculators

DIY Jar Fill and Batch Size Calculator How many jars a batch fills after waste, or the batch to make for a number of jars Calculators

DIY vs Store-Bought Cost Per Ounce Calculator Cost per ounce of homemade vs store-bought, saving per batch and equipment payback Calculators

Party Food Per Guest Calculator Appetizer and finger-food pieces per guest by event type and length, total and per dish Calculators

Party Drinks and Ice Calculator Non-alcoholic drinks per guest by hour, split into water, pop and juice, plus bags of ice Calculators

Party Cake Servings Calculator Servings from round, tiered or rectangular cakes for your slice size, and the cake size for a guest count Calculators

Party Pizza Quantity Calculator Pizzas to order for adults and kids by slices per person, with a vegetarian split and cost Calculators

BBQ Meat Per Person Calculator Raw meat to buy per person for a barbecue, split into burgers, sausages, chicken and steak Calculators

Banquet Table Seating Calculator Seats per round or rectangular table, tables and chairs needed, and floor space for a guest count Calculators

Buffet vs Plated Dinner Cost Calculator Total and per-guest cost of a buffet versus a plated dinner, with servers, service charge and tax Calculators

Party Budget Split Calculator Split a total party budget across venue, food, drinks, decor and more, with cost per guest Calculators

Kids Party Timeline Planner Clock-time schedule for a kids party from arrival to pickup, with setup start and time to spare Calculators

Salon Tip Calculator Tip per service and per stylist, before or after tax, with optional round-up Calculators

Braiding Hair Packs Calculator Packs of braiding hair to buy from a test braid, with spare hair and cost Calculators

FPS to Frame Time Calculator Milliseconds per frame from FPS and back, with a frame budget check Calculators

TV Viewing Distance Calculator Seating distance for a TV size at the 30 and 40 degree viewing angles, plus 1080p, 4K and 8K pixel distances Calculators

TV Size for Viewing Distance Calculator The TV diagonal that fills a 30 or 40 degree view from the distance you sit Calculators

Pixel Density (PPI) Calculator Pixels per inch and dot pitch in mm from screen size and resolution, with the pixel-blend distance Calculators

Screen Width and Height from Diagonal TV and monitor width and height in inches and cm from the diagonal and aspect ratio, with a furniture-fit check Calculators

Projector Screen Size from Throw Distance Projector image width, height and diagonal from throw distance and the throw ratio or zoom range Calculators

Projector Throw Distance Calculator How far back to place a projector for a target image width, from its throw ratio or zoom range Calculators

Projector Lumens vs Screen Size Screen brightness in foot-lamberts and nits from lumens, screen width and gain, against the 16 fL cinema figure Calculators

Monitor Distance and FOV Calculator Horizontal and vertical field of view of a monitor at your desk distance, and the distance for a 30 or 40 degree view Calculators

OS Scaling Effective Resolution Effective resolution and logical DPI of a screen at 100 to 300 percent OS scaling, with a 125 to 200 percent table Calculators

Ultrawide vs Dual Monitor Width Desk width, height and screen area of one ultrawide against two monitors side by side Calculators

Monitor Response Time vs Refresh Rate Calculator Does the pixel response fit inside one refresh at 60, 144 or 240 Hz Calculators

Mouse Sensitivity Converter (CS2, Valorant, Apex, Overwatch 2) Same cm per 360 across games, with eDPI and a custom yaw option Calculators

Game FOV Converter Horizontal and vertical field of view for any aspect ratio, with Hor+ comparison Calculators

PC Power Supply Wattage Calculator PSU size from CPU, GPU and other power plus headroom Calculators

Game Download Time Calculator Download time from size in GB and speed in Mbps, with MB per second and data cap share Calculators

Game Library Storage Calculator How many games fit on a 1 TB or 2 TB drive, and the size Windows will show Calculators

Elo Rating Change Calculator Expected score and new ratings after a win, draw or loss Calculators

Win Rate Goal Calculator Games needed to reach a target win rate, and straight wins required Calculators

Loot Box and Gacha Expected Cost Calculator Expected pulls and spend from the drop rate and an optional hard pity Calculators

Bridal Beauty Timeline Calculator Dated list of bridal trials, facials, lashes and nails counted back from the wedding day Calculators

Wedding Hair and Makeup Quote Calculator Bride and bridesmaid hair and makeup total with trials, travel, tax, tip and deposit Calculators

Wedding Morning Hair and Makeup Schedule Calculator Start time and chair order for a wedding party from the ready-by time and artist count Calculators

Prom and Event Getting Ready Schedule Calculator What time to start hair, makeup and dressing, counted back from your leave time Calculators

Spa Day Cost Split Calculator What each person pays for a group spa day with shared costs, add-ons, tax and tip Calculators

Group Salon Appointment Time Calculator How long a group salon booking takes from guests, stylists and minutes per service Calculators

Makeup Travel Bag Size Calculator Litres of bag your makeup needs, plus a check of liquids against the carry-on container limit Calculators

Press-On vs Salon Nails Cost Calculator Cost per event, per year and break-even for press-on nails versus a salon manicure Calculators

Hair Dye Amount Calculator Grams of colour and developer by hair length and density, tubes to buy, root touch-up amount Calculators

Hair Colour Correction Wheel Colour that cancels orange, yellow, red or green hair, and the pigment at each lift level Calculators

Wig Size Calculator Petite, average or large cap from your head circumference, with how to measure Calculators

Wig Cost Per Wear Calculator Cost per wear, month and year, and two wigs compared Calculators

How Many Bundles for a Sew-In Calculator Bundle range and grams for a sew-in by style and length, with a second seller chart as a cross-check Calculators

Wig Density to Bundles Converter Estimated bundles for a 150, 180, 200 or 250 density wig at your length, with grams Calculators

Sew-In and Wig Install Total Cost Calculator Hair, closure or frontal, stylist fee, products and tip added into one total Calculators

Bundle Length Shrinkage Calculator What bundle length to order so body wave or curly hair lands at your target length Calculators

Hair Install Cost Per Week Calculator Cost per week, month and year of an install, with optional rest weeks between installs Calculators

Hair Bundle Reuse Cost Per Wear Calculator Cost per wear of bundles reused across installs, with install and care costs Calculators

Lace Wig vs Sew-In vs Tape-In Cost Calculator Cost per month and year of three hair methods from your own prices and lifespans Calculators

Takedown and Reinstall Schedule Planner Takedown and reinstall dates with rest weeks between sew-in installs Calculators

Outfit Combinations Calculator Outfits your wardrobe makes from tops, bottoms, layers and shoes, and what one more piece adds Calculators

Capsule Wardrobe Size Calculator Tops, bottoms and total pieces for your laundry cycle, against the 33-item Project 333 challenge Calculators

Fabric Shrinkage Allowance Calculator Shrinkage percent from a wash swatch and the extra yardage to buy Calculators

Laundry Cost Per Load Calculator Electricity, water and detergent per load, per week and per year, against the laundromat Calculators

Dishwasher vs Hand Washing Cost Calculator Yearly electricity, water, detergent and optional time cost of each way to wash dishes Calculators

Robot Vacuum Payback Calculator Payback months and net gain from time saved, upkeep and expected life Calculators

Water Softener Salt Usage Calculator Days between regenerations, salt per year and cost from hardness, usage and capacity Calculators

Water Hardness Converter ppm, mg/L and grains per gallon with the USGS hardness class Calculators

Cleaning Solution Dilution Calculator Concentrate and water for a label ratio like 1:10, with never-mix-chemicals warnings Calculators

House Cleaning Time and Cost Calculator Hours and cost to clean by square footage, deep or move-out, hired vs DIY Calculators

Thrift Flip Profit Calculator Profit, margin, ROI, profit per hour and break-even price for a resale Calculators

Alter or Replace Calculator Tailor quotes with tax and tip compared with a replacement by cost per wear Calculators

Closet Rod and Shelf Space Calculator Rod length needed for hanging clothes, how many more fit, and shelf capacity Calculators

Paper Towels vs Reusable Cloths Cost Calculator Monthly and yearly savings and break-even month for reusable cloths Calculators

Dry Cleaning vs Home Washing Cost Calculator Cost per wear and yearly cost of dry cleaning against washing at home Calculators

Hair Extension Cost Calculator Total grams, packs to buy, cost per strand and yearly cost with install fees Calculators

Heat Styling Temperature Guide Conservative flat iron and curling iron temperature by hair type in C and F Calculators

Haircut Schedule Planner Every haircut date for a year and what a year of cuts costs with tip Calculators

Root Touch-Up Timing Calculator Weeks until roots or a relaxer need a touch-up, due date and yearly cost Calculators

Shampoo Cost Per Wash Calculator Washes per bottle, weeks it lasts and cost per wash with conditioner Calculators

Sunburn Time Calculator Minutes to first sunburn reddening from the UV index and Fitzpatrick skin type, with and without sunscreen Calculators

Nail Growth Calculator Weeks and date to a goal nail length, and when a gel or acrylic fill gap reaches 2 mm Calculators

Fingertip Unit Cream Calculator Fingertip units, grams and tubes of cream for the areas you treat, per application and per course Calculators

Skincare Routine Order Generator Morning and evening layering order for your products, with acids and retinoids on separate nights Calculators

Skin Tone ITA Calculator Individual Typology Angle, skin tone category, foundation depth and undertone from a hex colour Calculators

Fitzpatrick Skin Type Quiz Ten questions, scored 0 to 40, to find your Fitzpatrick skin type I to VI Calculators

Skincare Active Dilution Calculator Grams of serum and base to mix to a lower active percent, or the final percent of a blend Calculators

Eyelash Regrowth Calculator Weeks for lashes to grow back and the gap an extension fill has to cover Calculators

Lash Extension Cost Per Year Calculator Yearly cost of a lash extension set plus fills, from your prices, fill interval and tip Calculators

Lash Fill or New Set Calculator Fill or full set from the share of extensions left, your salon's minimum and both prices Calculators

Lash Lift Schedule and Cost Calculator The 4 to 6 week rebook window after a lash lift, next date and cost per year Calculators

Brow Tint and Lamination Calculator Next brow tint and lamination dates and the yearly cost of each Calculators

Microblading Touch-Up Cost Calculator Touch-up months and total cost of microblading over a number of years Calculators

Gel Polish Removal Time Calculator Soak-off minutes for gel polish by method, a finish time and 7 days of cuticle care Calculators

Lash Serum Timeline Calculator Week-by-week share of Latisse users with a lash gain, from the US label Calculators

Kids Shoe Size Chart Calculator Foot length to US, UK and EU kids shoe size, with growing room and a full 1C to 6Y chart Calculators

Watch Band Size Calculator Wrist size to strap length, Apple Watch Sport Band size and the case diameter that suits Calculators

Men's Pants and Jeans Size Converter Waist in inches or cm to US, UK and EU pants size, letter size and inseam in cm Calculators

Belt Size Calculator Pants waist to belt size, EU cm size and the waist range a belt fits, or size from a belt you own Calculators

Swimwear Size Converter Bust and hip measurements to separate top and bottom sizes in US, UK, EU and AU Calculators

Wedding Dress Size Calculator Bust, waist and hip measurements to the dress size to order, and why it can run bigger than your everyday size Calculators

Dress Shirt Collar and Sleeve Size Calculator Neck and arm measurements to collar size, sleeve length, EU size and S, M, L Calculators

Suit Jacket Size Calculator Chest and height to jacket size and length (short, regular, long), EU size and trouser waist Calculators

Necklace, Bracelet and Anklet Length Calculator Wrist, neck or ankle size to snug, standard and loose chain lengths, with named necklace styles Calculators

Dog Crate Size Calculator Crate length and height from your dog’s measurements, with the nearest standard size Calculators

Dog Bed Size Calculator Bed size from nose-to-tail length and sleeping style Calculators

Puppy and Kitten Vaccine Schedule Calculator Core vaccine, rabies and booster dates from a puppy or kitten birth date Calculators

Dog Chocolate Toxicity Calculator Theobromine dose in mg/kg by weight, chocolate type and amount, with vet bands Calculators

Xylitol Toxicity Calculator for Dogs Xylitol dose in g/kg from gum or sweetener eaten, with vet thresholds Calculators

Aquarium Volume Calculator Tank gallons, litres and water weight from dimensions, fill level and substrate Calculators

Aquarium Stocking Calculator How stocked your tank is from adult fish lengths, using a conservative inch-per-gallon rule Calculators

Pet Sitting Rate Calculator Quote for visits and overnights with extra pets, holiday surcharge, tax and platform fee Calculators

Dog and Cat Pregnancy Due Date Calculator Whelping or kitten due date and window from breeding or ovulation date Calculators

Soap Lye Calculator NaOH or KOH and water for cold process soap from your oils, superfat and lye concentration, with safety steps Calculators

Soap Mold Volume Calculator Grams of oil and batter that fill a soap mold of any size Calculators

Resin Mold Volume Calculator Millilitres and grams of epoxy resin for a box, round, sphere or cone mold, with the resin and hardener split Calculators

3D Print Filament Cost Calculator Filament, electricity and failed-print cost of a print from spool price, grams and print time Calculators

Filament Length to Weight Calculator Metres to grams and back for 1.75 or 2.85 mm filament in PLA, PETG, ABS and more, with metres per kg Calculators

Cross Stitch Fabric Size Calculator Finished design size, fabric to cut and minimum hoop from stitch count and Aida or evenweave count Calculators

Fabric Yardage Calculator Yards or metres of fabric to buy for a list of rectangular pieces, with seam allowance and extra Calculators

Knitting Gauge Calculator Cast-on stitches and rows from your swatch, rounded to a stitch multiple, and the effect of a different gauge Calculators

Even Increase and Decrease Calculator Space knitting or crochet increases and decreases evenly with the exact repeat to work Calculators

Flight Arrival Time Calculator Local landing time and date from a departure time, flight duration and the two time zones Calculators

Print Farm Profit Per Hour Calculator Profit per plate, per printer-hour and per month for a 3D printing business, with break-even price Calculators

Resin 3D Print Cost Calculator Resin, wash liquid, consumables, power and failed-print cost of an SLA or MSLA resin print Calculators

3D Printer Bed Size Fit Calculator Whether a part fits your build volume, which way to orient it and how many copies fit on one plate Calculators

Laser Cutting Time Calculator Cut, travel and raster engraving time for a laser job from path length, speed and passes, with batch time and cost Calculators

Laser Kerf Compensation Calculator Size to draw for a laser-cut part or hole after kerf, the path offset per side, and kerf from a test cut Calculators

CNC Feeds and Speeds Calculator Spindle RPM and feed rate from cutter diameter, flutes, surface speed and chip load, metric or imperial Calculators

CNC Material Removal Rate Calculator Material removal rate from stepover, depth and feed, plus roughing time for a pocket Calculators

E-Steps Calibration Calculator New extruder E-steps per mm from a 100 mm extrusion test, with the M92 command Calculators

Steps Per mm Calculator Steps per mm for a belt, lead screw or extruder axis from motor steps, microstepping and mechanics Calculators

3D Print Volumetric Flow Calculator Flow in mm3/s from line width, layer height and speed, and the top print speed for a hotend limit Calculators

Nozzle Layer Height Calculator Maximum layer height for a nozzle, layers in a model and how other layer heights change the count Calculators

Time Difference Between Cities Calculator Hour difference and converted time between two cities on a chosen date, with daylight saving Calculators

Layover Connection Time Calculator Real layover length across time zones, checked against the minimum connection time you enter Calculators

When To Leave For The Airport Calculator Leave-home time worked back from your flight time, airport arrival buffer, travel time and extras Calculators

Road Trip Cost Split Calculator Total road trip cost and the per-person split: fuel, tolls, lodging, food and extras Calculators

Drive Time Calculator With Breaks Total drive time and arrival time from distance, average speed, rest breaks and stops Calculators

Schengen 90/180 Day Calculator Days used and left under the Schengen 90 days in any 180 rule, and the longest stay from a planned entry date Calculators

Passport Validity Calculator Checks a passport expiry date against the 3 or 6 month validity rule for a trip, including the Schengen 10-year issue rule Calculators

Per Diem Calculator Total per diem for a trip from dates, daily M&IE and lodging rates, with first and last day at 75% Calculators

Junk Silver Melt Value Calculator Troy ounces and melt value of 90% and 40% silver US coins from the spot price you enter Calculators

Scrap Gold Value Calculator Pure gold and melt value by karat and weight, with a dealer payout estimate Calculators

Karat to Purity Converter Percent gold and fineness stamp (585, 750) from a karat, or karat from a stamp Calculators

Gold Price Per Gram by Karat Calculator Value of a gram and a pennyweight of 24k to 8k gold from the spot price you enter Calculators

Carat to Grams Converter Carats to grams, milligrams, pennyweight and momme, and back Calculators

Troy Ounce to Grams Converter Troy ounces, pennyweight, troy grains, grams and kilograms Calculators

Sterling Silver Value Calculator Pure silver and melt value of 925 sterling by weight, with a payout estimate Calculators

Pearls Per Strand Calculator Pearl count for a strand length and size, or the length for a number of pearls Calculators

Gold Alloy and Karat Mixing Calculator Fine gold and alloy in a piece, and the karat when you melt pieces together Calculators

Diamond Price Per Carat Calculator Total or per-carat price for a stone, and two stones compared Calculators

Bullion Premium Over Spot Calculator Premium over spot in dollars and percent, all-in price per ounce and break-even spot Calculators

Trading Card Grading ROI Calculator Expected value of grading a card against selling raw, with break-even top-grade odds Calculators

Pours Per Bottle and Cost Per Glass Calculator Pours per bottle, cost per pour and menu price for wine, whisky and spirits Calculators

Whisky Dilution Calculator Water to add for a target ABV, or the ABV after adding water, with proof Calculators

Stamp Perforation Gauge Calculator Perforation gauge from a hole count and measured length, with compound perf labels Calculators

Shelf Space Calculator Items per shelf and shelves needed for books, records or comics from a measured stack Calculators

Gold Silver Ratio Calculator Gold to silver ratio from spot prices, with a swap-and-back model Calculators

Half-Square Triangle Size Calculator Cut size of squares for half-square triangles from the finished size, with the exact value and the next 1/8 inch Calculators

No-Waste Flying Geese Size Calculator Large and small square sizes that make four flying geese units, from the finished width Calculators

Precut Squares Quilt Size Calculator Packs of charm squares, layer cakes or mini charms for a quilt size, or the size your packs make Calculators

Quilt Layout Calculator: Blocks, Sashing and Borders Finished quilt size, sashing and cornerstone counts, and border lengths from blocks across and down Calculators

Squares Per Yard of Fabric Calculator Strips and yardage for a number of squares of a cut size, or the squares a yardage cuts Calculators

Decimal Inches to Fraction Converter Nearest 1/2 to 1/64 inch fraction for a decimal, with round-up values, error and millimetres Calculators

Pattern Enlargement Percentage Calculator Copier or print percentage to resize a pattern, with area change and passes for a limited copier Calculators

Continuous Bias Binding Fabric Calculator Size of the fabric square for a length of continuous bias binding, with flat-piece yardage Calculators

Ruffle and Gathered Fabric Calculator Gathered strip length, strips across the fabric and yardage for a ruffle at 1.5x to 3x fullness Calculators

Paper Weight Converter (gsm to lb) Convert paper weight between gsm and pounds for bond, text, cover, index, bristol and watercolour stock. Calculators

Clay Shrinkage Calculator Wet-to-fired size for pottery, with drying and firing shrinkage combined correctly. Calculators

Picture Frame Mat Calculator Mat window size and border widths for any artwork in any frame, including bottom weighting. Calculators

Photo to Canvas Print Calculator How much of your photo a canvas crops, its ppi, and the largest canvas it supports. Calculators

Canvas Stretching Size Calculator Canvas fabric to cut for stretcher bars, with roll length and cost for several pieces. Calculators

Mural Grid Calculator Grid square size on the print and on the wall, with column, row and line counts for enlarging a drawing. Calculators

Paint Mixing Ratio Calculator Convert a paint recipe in parts into exact amounts for any total, or scale from one colour you already have. Calculators

Gesso and Varnish Amount Calculator How much gesso, varnish or sealer a canvas or panel needs from its size, coats and the label coverage. Calculators

Watercolour Palette Cost Calculator Total cost, cost per mL and cost per painting for a palette of watercolour tubes. Calculators

Propane Tank Run Time Calculator Hours and days a 20 lb, 100 lb or bulk propane tank will last Calculators

Party & Wedding Alcohol and Keg Calculator Standard drinks, kegs and bottles for your event Calculators

Weighted Grade Calculator Final grade from weighted assignment categories Calculators

Small Claims Court Limit & Fee Lookup Monetary limit and filing fee for all 13 provinces and territories Calculators

Study Schedule Planner Day-by-day study plan from an exam date and topic list Calculators

Reading Speed Calculator (WPM) Words per minute (WPM) from a timed read Calculators

Book Finish Date Calculator Pages per day to finish a book by a deadline, or the finish date at your pace Calculators

Spaced Repetition Schedule Calculator (SM-2) Flashcard review intervals and dates from your recall ratings Calculators

Study Hours Per Credit Hour Calculator Class and out-of-class hours per week and term from the federal credit-hour definition Calculators

Language Learning Hours Calculator (FSI) Weeks and date to reach the FSI hours for a language group at your study pace Calculators

German Grade Converter (Bavarian Formula) Convert a foreign grade or percentage to a German grade from 1.0 to 4.0 Calculators

GPA Needed to Raise Cumulative GPA The GPA you need next term to reach a target, or the credits it would take Calculators

Drop Lowest Grade Calculator Average before and after dropping your lowest quiz or homework scores Calculators

Grade Curve Calculator Curve test scores by adding points, scaling the top score, square root or bell curve Calculators

Class Average Calculator Mean, median, mode and standard deviation of a set of test scores, with pass rate Calculators

Item Analysis Calculator Item difficulty, discrimination index (top and bottom 27%) and KR-20 from a 1 and 0 grid Calculators

KR-20 Calculator Kuder-Richardson reliability from item difficulties and the spread of total scores Calculators

Letter Grade Scale Builder Your own percent cutoffs, with the minimum points for each letter on any total Calculators

Rubric Score Calculator Rubric points to a percentage, by total points or by criterion weights Calculators

Standards-Based Grade Calculator Mean, median, mode, most recent and decaying average for one standard Calculators

Attendance Percentage Calculator Attendance rate from days enrolled and absent, with the 10% chronic absence line Calculators

Citation Generator Format a book, article, or website citation in APA, MLA, or Chicago Calculators

Blood Sugar Converter Convert glucose between mg/dL and mmol/L with the exact factor Lab units

A1c to Average Glucose Calculator Convert HbA1c to eAG (ADAG) and IFCC mmol/mol Lab units

Cholesterol Converter Total, LDL, HDL cholesterol and triglycerides, mg/dL to mmol/L Lab units

Creatinine Converter Convert creatinine between mg/dL and µmol/L (factor 88.4) Lab units

Vitamin D Converter Convert 25-OH vitamin D between ng/mL and nmol/L Lab units

Hemoglobin Converter Convert hemoglobin between g/dL, g/L and mmol/L Lab units

Meal Carb Counter (Net Carbs, Fibre, Servings) Add up meal carbs from labels, subtract fibre for net carbs and scale by servings eaten Diabetes planning

Glycemic Load Calculator Glycemic load for each food and a whole meal: GI x available carbohydrate / 100 Diabetes planning

GMI Calculator (Glucose Management Indicator) Turn a CGM mean glucose into GMI (an A1C estimate) with the published 3.31 + 0.02392 formula Diabetes planning

Time-in-Range Calculator (CGM 70-180 mg/dL) CGM time in range, below and above percentages checked against the international consensus targets Diabetes planning

Hypoglycemia 15-15 Rule Timer A 15-minute recheck countdown for the 15-15 rule for low blood glucose, with a round counter Diabetes planning

Glucose Log Averager (Fasting and Sick-Day Readings) Average pasted fasting and sick-day glucose readings: mean, median, range, spread and lows Diabetes planning

Lab Unit Converter Calcium, bilirubin, testosterone, BUN-to-urea, uric acid, ferritin, B12 and more Lab units

FDA Drug Recall Lookup Search FDA drug recall enforcement reports by drug, firm or reason FDA recalls

FDA Food Recall Lookup Search FDA food and allergen recalls by product, brand or reason FDA recalls

FDA Medical Device Recall Lookup Search FDA medical device recalls by device, firm or reason FDA recalls

RxNorm RxCUI Lookup Find the RxCUI for a drug name or inspect an RxCUI via NLM RxNav Drug codes

LOINC Code Lookup Search LOINC lab test codes and check a code's check digit Lab codes

Body Fat Calculator Calculate your body fat percentage using the US Navy method Calculators

Caffeine Half-Life Calculator Caffeine left in your body after a drink, with cited sources Calculators

Daily Fiber Target Calculator Grams of fiber per day from your calories, using 14 g per 1,000 kcal Calculators

Iron Intake Calculator Daily iron RDA by age, sex and pregnancy, with the vegetarian 1.8x factor and UL Calculators

Calcium Intake Calculator Add up food and supplement calcium and compare it to the RDA and upper limit Calculators

Magnesium Intake Calculator Magnesium from food and supplements vs the RDA, and supplements vs the 350 mg UL Calculators

Potassium and Sodium Ratio Check Potassium vs its Adequate Intake, sodium vs its limit, and the ratio between them Calculators

Daily Caffeine Limit Calculator Your Health Canada daily caffeine maximum, and how much is left after your drinks Calculators

Supplement Label Unit Converter Convert IU, mcg RAE, mcg DFE and mg NE for vitamins A, D, E, folate and niacin Calculators

Sunscreen Amount Calculator Grams, teaspoons and fingers of sunscreen for face and body Calculators

Body Surface Area Calculator BSA in m2 from height and weight, Mosteller and Du Bois formulas Calculators

Sunscreen Reapplication Timer Reapply times and countdown by UV index, from Health Canada guidance Calculators

Prescription Transposition Calculator Convert plus to minus cylinder: new sphere, cylinder and axis Calculators

Spherical Equivalent Calculator Sphere plus half the cylinder from a glasses prescription Calculators

Contact Lens Vertex Distance Calculator Glasses prescription to contact lens power and back Calculators

Pupillary Distance Calculator Binocular to monocular PD, or average ruler readings Calculators

Lens Thickness Calculator Estimated edge or centre thickness by power, frame and lens index Calculators

Reading Glasses Strength Calculator Starting reading-glasses diopter by age and reading distance Calculators

Contact Lens Cost Per Day Calculator Daily vs monthly contact lens cost per day, month and year Calculators

20-20-20 Eye Break Timer Every 20 minutes, look 20 feet away for 20 seconds Calculators

Visual Acuity Converter 20/20 to 6/6, decimal and logMAR in one place Calculators

Sleep Debt Calculator Weekly sleep shortfall against the CDC range for your age, plus a catch-up split Calculators

Sleep Efficiency Calculator Time asleep divided by time in bed, with the 85% and 90% bands Calculators

How Long to Form a Habit Calculator Dates for the 66-day habit average and the 18 to 254 day range from the Lally study Calculators

Streak Calculator Days left and goal date for a habit or meditation streak, with milestones and total hours Calculators

Sweat Rate Calculator Litres of sweat per hour from your weight before and after a workout Calculators

Screen Time Calculator Screen hours per week and year, share of waking life, and time saved by cutting back Calculators

Weekly Exercise Minutes Calculator Moderate and vigorous minutes against the CDC 150-minute weekly adult guideline Calculators

Skincare Ingredient Conflict Checker Can you use retinol with vitamin C? Pairwise matrix and AM/PM split Calculators

Retinol Schedule Generator Printable 4-week retinol and skin cycling calendar Calculators

Calorie Calculator (TDEE) TDEE calculator Calculators

Essential Oil Dilution Calculator Drops of essential oil for any carrier amount and dilution, with Tisserand ranges Calculators

Grade-Adjusted Running Pace Calculator Flat-equivalent hill pace from the Minetti 2002 energy cost model Calculators

Heart Rate Zones Calculator Calculate your heart rate training zones for optimal workouts Calculators

Karvonen Heart Rate CalculatorTarget heart rate in bpm from heart rate reserve and intensity rangeCalculators

Ideal Weight Calculator Calculate your ideal body weight using multiple medical formulas Calculators

Macro Calculator Calculate your ideal macronutrient ratios for protein, carbs, and Calculators

Powerlifting Points Calculator Wilks, DOTS and IPF GL points from bodyweight and total Calculators

RPE Chart Calculator Reps and RPE or RIR to percent of 1RM, working weight or e1RM Calculators

5/3/1 Calculator Wendler 5/3/1 weights by week from your 1RM or training max Calculators

Progressive Overload Calculator Linear load plan by week with an ACSM 2% to 10% step check Calculators

Double Progression Calculator Next session's weight and rep target, then a rep-then-weight path Calculators

Weekly Sets per Muscle Group Calculator Weekly hard sets per muscle against the under-5, 5 to 9 and 10+ groups Calculators

Deload Week Planner Dated week-by-week deload schedule with sets per exercise Calculators

Relative Strength Calculator Bodyweight multiple and size-adjusted strength score Calculators

Reps at Percent of 1RM Calculator Max reps at a percentage of 1RM, and the percentage for a rep count Calculators

One-Rep Max Calculator 1RM calculator Calculators

Foreign Transaction Fee Calculator Fee in CAD, effective rate, compare two cards Calculators

Glove Size Calculator Hand size to EN ISO 21420 glove size, XS to XXL Calculators

Bra Sister Size Calculator Up-band and down-band sister sizes, US or UK cups Calculators

Hat Size Calculator Head circumference to US, UK and EU hat size Calculators

Kids Clothing Size by Height & Age EU/UK height size, typical age, US size and shoe size from height or age Calculators

5 Pin Bowling Score Calculator Canadian five-pin running score and league handicap Calculators

IVF Due Date Calculator (3-Day, 5-Day, Frozen Transfer) Due date, week and trimester dates from an embryo transfer Calculators

Corrected Age Calculator (Premature Babies) Actual age minus weeks born early, AAP method Calculators

Minecraft XP Level Calculator Level to XP points, points to level, XP between levels Calculators

Quilt Backing and Binding Calculator Backing panels, yardage, wide-back option and binding strips Calculators

Ovulation Calculator Ovulation calculator Calculators

Running Pace Calculator Running pace calculator Calculators

Race Time Predictor Riegel formula 5K to marathon predictions with a selectable exponent Calculators

Sleep Cycle Calculator Bedtime and wake-up times in 90-minute cycles by age Calculators

Kids Bedtime Calculator Bedtime window by age and wake-up time from the CSEP sleep ranges Calculators

Kids Screen Time Limit Calculator Recommended daily screen limit by age (CSEP) against your child's weekly hours Calculators

Steps to Miles Calculator Steps to miles, km, walking time and calories Calculators

Standard Drinks Calculator Alcohol units for Canada, US, UK and Australia, with weekly total Calculators

FFMI Calculator Fat-free mass index and normalized FFMI Calculators

Barbell Plate Calculator Plates per side for any target weight, kg or lb Calculators

Treadmill Calculator Pace, incline, METs and calories on a treadmill Calculators

Pregnancy Weight Gain Calculator IOM recommended gain, total and by week, one baby or twins Calculators

Max Heart Rate Calculator Compare Tanaka, Fox, Gellish and Nes, plus Karvonen zones Calculators

Protein Intake Calculator Daily protein in grams and per meal by goal Calculators

Hiking Time Calculator Naismith's rule with ascent, descent and rests Calculators

Conception Date Calculator (From Due Date or Birthday) Estimated conception date and intercourse window from a due or birth date Calculators

Pregnancy Due Date Calculator Pregnancy due date calculator Calculators

Water Intake Calculator Daily water intake calculator Calculators

Compound Interest Calculator Compound interest calculator Calculators

APY to APR Converter Convert APY to APR and back for daily, monthly, quarterly or continuous compounding Calculators

Rule of 72 Calculator Years to double, exact vs the 72, 70 and 69.3 shortcuts, and rate needed Calculators

GIC Calculator Guaranteed Investment Certificate maturity value, plus CDIC coverage Calculators

CPP & OAS Calculator Canadian CPP and OAS calculator Calculators

Dividend Calculator Canadian dividend calculator Calculators

FHSA Calculator FHSA contribution room, carry-forward and growth Calculators

Retirement Contribution Limits 2026 US, Canada and UK limits with sources Calculators

Home Buyers' Plan Repayment Calculator 15-year RRSP HBP repayment schedule and start year Calculators

Lifelong Learning Plan Repayment Calculator 10-year RRSP LLP repayment schedule and shortfall tax Calculators

FIRE Calculator FIRE calculator Calculators

Investment Return Calculator Investment return calculator Calculators

Net Worth Calculator Canadian net worth calculator Calculators

RESP Calculator Canadian RESP calculator Calculators

Retirement Calculator Canadian retirement calculator Calculators

ROI Calculator Return on Investment (ROI) calculator Calculators

RRSP Calculator Canadian RRSP calculator Calculators

TFSA Calculator Canadian TFSA calculator Calculators

Pension Adjustment (PA) Calculator DC and DB pension adjustment and the RRSP room it removes Calculators

RRSP Over-Contribution Penalty Calculator The real 1%/month CRA tax past your $2,000 cushion Calculators

T1135 Penalty Calculator CRA late-filing and gross-negligence penalties for foreign property returns Calculators

RRSP Withdrawal Withholding Tax Calculator CRA 10/20/30% withholding and the cash you receive Calculators

TFSA Contribution Room Calculator Your real cumulative room since 2009 Calculators

RRSP vs TFSA Calculator Marginal rate now vs retirement, refund reinvested Calculators

RMD Calculator Required minimum distribution with the IRS 2026 tables Calculators

Social Security Survivor Benefit Calculator US widow(er) benefit by age, RIB-LIM cap and child 75% Calculators

CPP Survivor & Death Benefit Calculator Monthly survivor's pension plus the $5,000 death benefit Calculators

CPP Disability Benefit Estimator Flat rate + 75% formula, plus the real eligibility test Calculators

CPP Post-Retirement Benefit Calculator The extra pension earned by working while collecting CPP Calculators

Alberta Seniors Benefit Estimator Estimate Alberta's income-tested monthly benefit for seniors Calculators

GIS Calculator Guaranteed Income Supplement for lower-income seniors Calculators

Social Security Full Retirement Age Full retirement age by birth year, with the reduction at 62 and credit to 70 Calculators

CPP Start Age Break-Even Compare CPP at 60, 65 and 70 and find the break-even age Calculators

OAS Deferral Calculator 0.6%/month bonus for delaying past 65, up to 36% at 70 Calculators

OAS Recovery Tax (Clawback) Calculator How much OAS you repay above the income threshold Calculators

Allowance for the Survivor Bridge benefit for a low-income widow(er) aged 60–64 Calculators

CESG Catch-Up Calculator Claim up to $1,000 of grant a year with unused room Calculators

RESP Withdrawal (EAP) Limit Checker The real $8,000 full-time / $4,000 part-time caps Calculators

RDSP Grant & Bond Calculator Real 2026 ESDC matching rates, up to $3,500/year Calculators

RRIF Minimum Withdrawal Calculator Real CRA prescribed-factor schedule by age — also covers a LIF minimum Calculators

LIF Maximum Withdrawal Calculator (Ontario) Ontario Reg. 909 Schedule 1.1 formula for your LIF's yearly ceiling Calculators

Investment Payout Calculator When a withdrawal runs out, or the payout that lasts N years Calculators

HELOC Investment Strategy Calculator HELOC investment strategy calculator Calculators

Leverage Investing Calculator Leverage investing calculator for Canadians Calculators

Rental Property Leverage Calculator Canadian rental property leverage calculator Calculators

RRSP Loan Gross-Up Calculator RRSP loan gross-up calculator Calculators

Smith Manoeuvre Calculator Canadian Smith Manoeuvre calculator Calculators

Auto Loan Calculator Auto loan calculator for Canada Calculators

Business Loan Calculator Business loan calculator for Canada Calculators

Debt Snowball Calculator Debt snowball calculator to plan paying off multiple debts Calculators

Early Loan Payoff Calculator Calculate savings from paying off loans early Calculators

HELOC Calculator Canada Borrowing limit at 65% and 80% LTV, interest-only and amortizing payments Calculators

Home Equity Loan Payment Calculator Estimate fixed-rate payments, equity, LTV, and combined LTV Calculators

Home Equity Loan vs HELOC Calculator Payment, peak payment and total interest side by side Calculators

Home Equity Closing Cost Calculator Itemize fees, effective rate, and no-cost break-even Calculators

Line of Credit Calculator Calculate line of credit interest and payments Calculators

LOC Payoff with Additional Draws Line of credit payoff month, interest and schedule with future draws Calculators

LOC & HELOC Rate Stress Test Payment shock and annual interest if your variable rate rises Calculators

Line of Credit vs Personal Loan Compare total cost, payoff time and APR with fees Calculators

Commercial Mortgage Calculator Canada Payment, balloon, DSCR Calculators

Commercial Loan Calculator Canada Interest-only and balloon Calculators

Equipment Financing Calculator Canada Loan vs lease Calculators

Small Business Loan Calculator Canada Payment and all-in rate Calculators

Commercial Land Loan Calculator Canada Payment and carrying cost Calculators

CSBFP Loan Calculator Payment, 2% fee, limits Calculators

BDC Loan Calculator Principal holiday, rate what-if Calculators

Business Line of Credit Calculator Draw fees, unused-line fees and all-in cost over 12 months Calculators

Equipment Financing Calculator Payment, balloon and all-in rate on an equipment loan Calculators

Equipment Lease vs Buy Calculator Present-value cost of a lease against a loan Calculators

Business Loan DSCR Calculator Debt service coverage and the largest loan your cash flow supports Calculators

Loan Origination Fee APR Calculator What a loan fee does to the APR, now and if you repay early Calculators

Business Loan Interest Rate Calculator Find the rate, APR with fees and factor rate from a quoted payment Calculators

Interest-Only vs Amortizing Business Loan Calculator Payments, total interest and balloon for three loan structures Calculators

Commercial Loan Sizing Calculator Largest loan by DSCR, loan-to-value and debt yield tests Calculators

Business Line of Credit Payment Calculator Interest-only, draw-then-repay and percentage-of-balance payments Calculators

Credit Card Annual Fee Break-Even Net value and break-even spend for a card's annual fee Calculators

Personal Loan Calculator Personal loan calculator for Canada Calculators

Student Loan Payoff Calculator Calculate student loan payoff with extra payments Calculators

Criminal Interest Rate Checker (35% APR) Loan APR vs the Criminal Code s.347 limit Calculators

Payday Loan Cost and APR Calculator Fee, total repayment and APR of a Canadian payday loan Calculators

RAP Zero-Payment Checker Federal Repayment Assistance Plan eligibility Calculators

Fraction Calculator Fraction calculator for adding, subtracting, multiplying, and Calculators

GCF & LCM Calculator Calculator for finding GCF (Greatest Common Factor) and LCM Calculators

Drop Rate Calculator Chance of at least one drop after n tries, and tries needed for 50-99% odds Calculators

Probability Calculator Probability calculator for calculating odds, combinations, Calculators

Dice Probability Calculator Exact odds that NdS plus a modifier is at least, at most or exactly a target total Calculators

Advantage and Disadvantage Calculator d20 success chance normally, with advantage and with disadvantage, for any modifier and target Calculators

D&D Damage Per Round Calculator Hit chance, crit chance and average damage per attack and per round against an armor class Calculators

4d6 Drop Lowest Calculator Odds of every ability score when you roll several dice and keep the highest Calculators

Dice Pool Success Probability Calculator Chance of enough successes in a pool of dice where each die succeeds on a target or higher Calculators

Card Draw Probability Calculator Exact odds of drawing at least, exactly or at most k copies of a card from a deck Calculators

Poker Outs Calculator Hold'em draw odds from your outs, the rule of 2 and 4, and the equity pot odds require Calculators

Poker Hand Odds Calculator Probability and 1-in-N odds of every poker hand, 5-card and best five of seven Calculators

Catan Dice Probability Calculator Cards per roll, payout chance and dry-spell odds for your settlement and city numbers Calculators

Yahtzee Odds Calculator Best-play chance of a Yahtzee, straight, full house or kind in a turn, and which dice to keep Calculators

Party XP and Loot Split Calculator Split XP and gold, silver and copper evenly across a party with leftovers shown Calculators

Pythagorean Theorem Calculator Pythagorean theorem calculator for right triangles Calculators

Triangle Calculator (SSS, SAS, ASA, SSA) Solve a triangle from any three sides and angles with area, heights, inradius and circumradius Calculators

Law of Cosines Calculator Find a side from SAS or an angle from SSS with the formula shown Calculators

Arc Length Calculator Arc length, central angle or radius from any two, with chord and sagitta Calculators

Area of a Sector Calculator Sector and circle segment area from radius and angle or arc length Calculators

Ellipse Calculator Area, exact perimeter, eccentricity and foci from the two axes Calculators

Regular Polygon Calculator Area, apothem, circumradius and angles for any regular polygon Calculators

Frustum Volume Calculator Volume and surface area of a cone or square pyramid frustum Calculators

Degrees to Radians Converter Degrees, radians and DMS both ways, with exact fractions of pi Calculators

Long Division Calculator Long division with steps, remainder and optional decimal places Calculators

Proportion Calculator Solve a/b = c/d for the missing value with cross multiplication Calculators

Ratio Calculator Simplify a ratio, split a total in a ratio, or scale a ratio from one amount Calculators

Percent Increase and Decrease Calculator: Reverse and Successive Changes Percent change, a number after a percent rise or fall, and the original before it Calculators

Mixed Number to Improper Fraction Converter Convert improper fractions to mixed numbers and back, with the steps Calculators

Simplify Fractions Calculator Reduce a fraction to lowest terms with the greatest common factor shown Calculators

Fraction to Decimal Converter Fractions to decimals with repeating digits, and decimals back to fractions Calculators

Unit Price Comparison Calculator Price per unit for up to three items and which one is the best buy Calculators

Composite Shape Area and Perimeter Calculator Area and perimeter of L-shapes, house shapes, arched shapes and shapes with a hole Calculators

Order of Operations Calculator Evaluate an expression step by step with PEMDAS and BODMAS Calculators

Factors of a Number Calculator All factors, factor pairs, prime or composite and the prime factorization Calculators

Sample Size Calculator Survey sample size and margin of error at 90, 95 or 99% confidence Calculators

A/B Test Sample Size Calculator Visitors per variant and test duration for a target lift Calculators

A/B Test Significance Calculator z-test, p-value, relative lift and confidence interval for two conversion rates Calculators

Minimum Detectable Effect Calculator Smallest lift an A/B test can detect with your traffic Calculators

Bayesian A/B Test Calculator Probability that B beats A with credible intervals Calculators

Z-Score Calculator Z-score from a value, mean and standard deviation, with percentile Calculators

Quartile Calculator Q1, Q3, IQR, five-number summary, box plot and outliers Calculators

Correlation Coefficient Calculator Pearson r, r squared, t and p-value for paired data Calculators

Linear Regression Calculator Least-squares line, slope, intercept, R squared and prediction Calculators

Binomial Probability Calculator Exact, at most, at least and between-two-numbers binomial probability Calculators

Normal Distribution Calculator Area below, above, between or outside values, plus inverse normal Calculators

Poisson Distribution Calculator Poisson probability for exactly, at most, at least or between counts Calculators

Chi-Square Calculator Test of independence for r x c tables, Yates for 2x2, and goodness of fit Calculators

T-Test Calculator One-sample, Welch and pooled t-test from mean and standard deviation Calculators

ANOVA Calculator One-way ANOVA table with F and p-value from data or mean and SD Calculators

Grouped Data Calculator Mean, median, mode and range of a grouped frequency table Calculators

P-Value Calculator P-value from a z-score or t-score for one or two tails Calculators

Confidence Interval Calculator Confidence interval for a mean from mean, standard deviation and size Calculators

Proportion Confidence Interval Calculator Wilson, exact and normal intervals for a percentage or rate Calculators

Standard Error Calculator Standard error of a mean or proportion with population correction Calculators

Scientific Notation Calculator Convert to scientific, E and engineering notation, or add, subtract, multiply, divide and raise to a power Calculators

Significant Figures Calculator Count significant figures and round to sig figs or decimal places, with the rule shown Calculators

Sig Fig Arithmetic Calculator Add, subtract, multiply and divide measurements and round by the significant figure rules Calculators

Percent Error Calculator Percent error against an accepted value, or percent difference between two values, with working Calculators

Uncertainty Propagation Calculator Absolute, relative and percent uncertainty, and propagation through sums, products and powers in quadrature Calculators

Number to Words Converter Spell any number in English words with ordinal forms, American or British style, up to 999 decillion Calculators

Statistics Calculator Statistics calculator for mean, median, mode, range, variance, Calculators

Mortgage Affordability Calculator Find out how much home you can afford in Canada Calculators

How Much House Can I Afford in Ontario Ontario maximum home price from income, debts and down payment at the stress-test rate Calculators

How Much House Can I Afford in BC British Columbia maximum home price from income, debts and down payment at the stress-test rate Calculators

How Much House Can I Afford in Alberta Alberta maximum home price from income, debts and down payment at the stress-test rate Calculators

How Much House Can I Afford in Quebec Quebec maximum home price from income, debts and down payment at the stress-test rate Calculators

Mortgage on a $80,000 Salary Maximum mortgage and home price on a $80,000 income in Canada Calculators

Mortgage on a $100,000 Salary Maximum mortgage and home price on a $100,000 income in Canada Calculators

Mortgage on a $150,000 Salary Maximum mortgage and home price on a $150,000 income in Canada Calculators

GDS and TDS Worked Examples Step-by-step GDS and TDS examples for Canadian mortgage qualification Calculators

How Much House Can I Afford: Single vs Couple Maximum home price on one income vs two combined incomes in Canada Calculators

Amortization Calculator Mortgage amortization calculator with complete payment schedule Calculators

Closing Costs Calculator Estimate the total closing costs when buying a home in Canada Calculators

HELOC Calculator Calculate HELOC payments and interest costs Calculators

Ontario Land Transfer Tax Calculator Calculate Ontario land transfer tax with Toronto municipal tax Calculators

BC Property Transfer Tax Calculator BC PTT with exemptions and the foreign buyer tax Calculators

Ontario Non-Resident Speculation Tax The 25% NRST on foreign buyers, with the permanent resident rebate Calculators

Quebec Transfer Duties Calculator The welcome tax, with Montreal's higher bands explained Calculators

Mortgage Stress Test Calculator Qualify at the greater of your rate plus 2% or 5.25% Calculators

Alberta Land Transfer Fee Calculator Alberta has no land transfer tax. Work out the Land Titles levies Calculators

Manitoba Land Transfer Tax Calculator Manitoba LTT brackets plus the registration fees Calculators

Saskatchewan Land Transfer Fee Calculator The ISC land title fee at 0.4%, plus mortgage registration Calculators

Municipal Property Tax Estimator 2026 residential rates for Toronto, Calgary and Edmonton Calculators

Standard Mileage vs Actual Expenses (Gig Drivers) 2026 IRS rate vs real car costs: bigger deduction and tax saved Calculators

BC Home Owner Grant Calculator 2026 grant by assessed value, type and region Calculators

Vacant Home Tax Calculator Toronto 3% Vacant Home Tax and the BC speculation and vacancy tax Calculators

Ontario Probate Fee Calculator Estate Administration Tax at $15 per $1,000 over $50,000 Calculators

Nova Scotia Deed Transfer Tax Calculator Municipal deed transfer tax and the non-resident tax Calculators

New Brunswick Property Transfer Tax Calculator NB real property transfer tax at 1% of the greater value Calculators

PEI Property Transfer Tax Calculator PEI RPTT at 1%, with the first-time buyer exemption Calculators

Real Estate Commission Calculator (Canada) Tiered agent commission, GST/HST by province, buyer/seller split Calculators

Newfoundland Land Transfer Fee Calculator The Registry of Deeds registration fee, not a tax Calculators

Mortgage Payment Calculator Canadian mortgage payment calculator with semi-annual Calculators

Mortgage Prepayment Calculator Canadian mortgage prepayment calculator Calculators

Mortgage Penalty Calculator The greater of 3 months' interest or the IRD Calculators

IRD Penalty Calculator Four lender methods side by side Calculators

Five-Year Mortgage Rule Calculator Interest Act s. 10: three months' interest Calculators

Cash-Out Refinance Calculator (Canada) Equity you can take out at the 80% limit Calculators

Switch or Renew Mortgage Calculator Interest saved and break-even for switching lenders Calculators

Debt Consolidation Refinance Calculator Payment relief vs total cost over time Calculators

Refinance Break-Even Rate Calculator The new rate a refinance needs to pay for itself Calculators

Blend and Extend Mortgage Calculator Blended rate and cost vs staying or breaking Calculators

CLTV Calculator LTV, combined LTV and HCLTV across all liens Calculators

Available Home Equity Calculator How much home equity you can borrow at a given max CLTV

Nominal to Effective Rate Calculator Effective annual rate and monthly equivalent, with semi-annual mortgage compounding Calculators

Mortgage Trigger Rate Calculator Rate where a fixed variable-mortgage payment stops covering interest Calculators

Mortgage Renewal Payment Shock Calculator New payment and cost difference at renewal Calculators

Mortgage Refinance Calculator Canadian mortgage refinance calculator Calculators

Ontario Condo Reserve Fund Projector 30-year reserve fund plan and special assessment check, per O. Reg. 48/01 Calculators

Rental Yield & Cap Rate Calculator Gross yield, net yield, and capitalization rate Calculators

Rent vs Buy Calculator Compare renting versus buying a home in Canada Calculators

Hourly to Salary Calculator Convert hourly wage to annual salary Calculators

Max Weekly Unemployment Benefit by State Maximum and minimum benefit, weeks and top payout for every U.S. state Calculators

Salary Percentile Calculator See where your pay ranks for 150 U.S. occupations (BLS data) Calculators

Paycheck Calculator Paycheck calculator for Canadian employees Calculators

Wage Garnishment Limit Calculator (Federal and State) Federal 25% cap, support-order limits and TX, PA, SC state rules Calculators

Salary to Hourly Calculator Convert annual salary to hourly wage Calculators

RQAP / QPIP Parental Benefit Calculator Quebec's own parental insurance plan, Basic vs Special Plan Calculators

Payroll Calculator Alberta Net pay after federal and Alberta tax, CPP and EI Calculators

Paycheck Calculator by Province Pick a province and compare take-home pay across all ten Calculators

Manitoba Paycheck Calculator Net pay after federal and Manitoba tax, CPP and EI Calculators

Saskatchewan Paycheck Calculator Net pay after federal and Saskatchewan tax, CPP and EI Calculators

Nova Scotia Paycheck Calculator Net pay after federal and Nova Scotia tax, CPP and EI Calculators

New Brunswick Payroll Calculator Net pay after federal and New Brunswick tax, CPP and EI Calculators

Newfoundland and Labrador Paycheck Calculator Net pay after federal and NL tax, CPP and EI Calculators

PEI Paycheck Calculator Net pay after federal and PEI tax, CPP and EI Calculators

Payroll Calculator BC Take-home pay after federal and BC tax, CPP and EI Calculators

Payroll Calculator Yukon Take-home pay after federal and Yukon tax, CPP and EI Calculators

Payroll Calculator NWT Take-home pay after federal and NWT tax, CPP and EI Calculators

Payroll Calculator Nunavut Take-home pay after federal and Nunavut tax, CPP and EI Calculators

Payroll Calculator Ontario Take-home pay after tax, surtax, Health Premium, CPP and EI Calculators

Payroll Calculator Quebec Net pay after federal and Quebec tax, QPP, QPIP and EI Calculators

Capital Gains Tax Calculator Canadian capital gains tax calculator Calculators

Crypto Capital Gains Tax Calculator Canadian crypto capital gains: 50% inclusion vs. business income Calculators

Superficial Loss Calculator Denied capital loss under the 30-day rule, CRA formula Calculators

Income Tax Calculator Canada Canadian income tax calculator Calculators

Newfoundland and Labrador Income Tax Calculator Eight NL brackets from 8.7%, plus federal tax Calculators

Income Tax Calculator Alberta Alberta's new 8% first bracket, plus federal tax Calculators

Manitoba Income Tax Calculator Federal plus Manitoba tax, with average and marginal rate

New Brunswick Income Tax Calculator Federal plus New Brunswick tax, with average and marginal rate

Income Tax Calculator Nova Scotia Five NS brackets and the flat $11,932 basic amount Calculators

Income Tax Calculator BC All seven BC brackets plus the tax reduction credit Calculators

Ontario Health Premium Calculator Premium from taxable income, up to $900 Calculators

Income Tax Calculator Ontario Federal and Ontario brackets, surtax and Health Premium Calculators

Income Tax Calculator Quebec Revenu Quebec brackets plus federal tax after abatement Calculators

RRSP Tax Refund Calculator Refund, marginal rate and room by province, 2026 Calculators

RRSP Refund Calculator Ontario Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator British Columbia Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Alberta Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Quebec Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Manitoba Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Saskatchewan Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Nova Scotia Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator New Brunswick Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Newfoundland and Labrador Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

RRSP Refund Calculator Prince Edward Island Refund at $40k to $200k, 2026 brackets and marginal rates Calculators

Pension Income Splitting Calculator Form T1032 — the real 50% max allocation, optimized for the lowest combined tax Calculators

Canadian Sales Tax Calculator Canadian sales tax calculator Calculators

Self-Employment Tax Calculator Canadian self-employment tax calculator Calculators

Tax Refund Estimator Canadian tax refund estimator Calculators

Hobby vs Business Checklist for Sellers The nine IRS factors and the 3-of-5-years profit presumption Calculators

CRA Digital Platform Reporting Checker Will your marketplace report you? The 30 sales and $2,800 exclusion Calculators

1099-K and 1099-NEC Threshold Checker 2026 filing thresholds: $20,000 and 200 transactions, or $2,000 Calculators

GST/HST Registration Threshold Checker The real $30,000 small-supplier rule, checked against your revenue Calculators

Disability Tax Credit Estimator Checklist-based DTC eligibility against CRA's real criteria Calculators

Quebec Family Allowance Calculator Allocation famille per-child amount and single-parent supplement Calculators

Self-Employed CPP vs QPP Calculator Quebec's real, higher QPP self-employed rate vs CPP Calculators

Income Tax Instalment Calculator The real $3,000 CRA quarterly instalment rule Calculators

Rental Income Tax Calculator (Canada) Tax on net rent stacked on your other income Calculators

Rental Property CCA Schedule (Class 1) Class 1 CCA, recapture and terminal loss Calculators

T776 Rental Expenses Checklist Total rental expenses by CRA T776 line Calculators

CRA Instalment Due Dates Exact quarterly dates, weekend rule included Calculators

GST/HST on Rental Property Guide Exempt, taxable or small supplier? Calculators

Basement Apartment Rental Income Tax Split home costs by floor area, estimate the tax Calculators

Instalment Interest & Penalty Calculator CRA interest and penalty on late or short instalments Calculators

CRA Arrears Interest Calculator Daily-compounded interest on unpaid CRA balances, by quarter Calculators

GST/HST Filing Frequency Determiner Annual, quarterly or monthly, by the real $1.5M/$6M thresholds Calculators

Corporate Tax Instalment Calculator The $3,000 corporate threshold and the eligible small CCPC test Calculators

Small Business Deduction Grind Calculator How taxable capital and passive income grind your $500k SBD limit Calculators

Federal Tuition Tax Credit Calculator Line 32300 credit value, $5,000 transfer cap, carry-forward Calculators

Tuition Transfer to Parent/Grandparent Line 32400: $5,000 cap minus what the student needs first Calculators

Canada Employment Amount Calculator Line 31260: the lesser of $1,471 (2025) or your employment income Calculators

Union & Professional Dues Deduction Line 21200: 100% deductible, no cap — what qualifies and what doesn't Calculators

Canada Caregiver Amount Calculator Line 30425 vs 30450: which applies, and the real $8,601 (2025) figure Calculators

CCA Class & Rate Lookup CRA's own depreciable property classes and rates Calculators

GST/HST Quick Method Calculator Real CRA remittance rates by province and business type, plus the 1% credit Calculators

GST/HST Input Tax Credit (ITC) Calculator CRA's 90% commercial-use rule, apportionment, and the 50% meals cap Calculators

Charitable Donation Tax Credit Calculator Federal 14%/29%/33% rates on your donations Calculators

Quarterly Estimated Tax Calculator Four 1040-ES payments and due dates using the 90% / 100% / 110% safe harbor Calculators

BC Family Benefit Calculator Up to $1,750 per first child, phased out from $30,176 (2026-27) Calculators

BC Renter's Tax Credit Calculator Up to $400 refundable, phased out from $66,189 (2026) Calculators

Home Buyers' Amount Calculator 14% of up to $10,000 for first-time buyers Calculators

Home Office Expenses Calculator (T2200) Detailed-method only — the flat rate method no longer exists Calculators

Tradesperson's Tools Deduction Calculator The lesser of $1,000 and (tool cost minus the CRA threshold) Calculators

Moving Expenses 40km Rule Checker The real 40km-closer test for line 21900, plus what T1-M covers Calculators

Medical Expense Tax Credit Threshold Lesser of 3% of net income or $2,834 — only expenses above count Calculators

Multigenerational Home Renovation Tax Credit Refundable 14.5% of secondary-suite costs, up to $7,250 Calculators

Canada Training Credit Calculator Refundable 50% of fees, up to your training credit limit Calculators

Home Accessibility Tax Credit Calculator The real $20,000 cap at the 14% federal rate — line 31285 Calculators

Pension Income Amount Calculator Up to $2,000 federal + $1,762 Ontario — line 31400 Calculators

1099 Tax Set-Aside Calculator What % of every 1099 payment to save for 2026 SE, income and state tax Calculators

Clipping Income Tax Set-Aside Calculator (US) Do clippers pay taxes? What share of clip income to save for 2026 taxes Calculators

Clipping Income Tax in Canada: Self-Employed Guide T2125, CPP and the $30,000 GST/HST limit for clip income Calculators

Do I Need to Report Clipping Income? 1099-NEC at $2,000 from 2026 and the $400 self-employment rule Calculators

CPP2 / YAMPE Calculator The second CPP ceiling — do you owe the extra 4%/8%? Calculators

Child Care Expenses Deduction Calculator Real per-child caps and the 2/3-earned-income rule — line 21400 Calculators

CMHC Premium Calculator Complete mortgage default insurance rate table by loan-to-value Calculators

Down Payment Calculator Canada Minimum 5% / 10% / 20% rule and months to save it Calculators

Payroll Remittance Frequency Determiner Your real CRA remitter type, from your AMWA Calculators

Remittance Due Date Calculator Exact calendar due date, shifted for weekends and 2026 CRA holidays Calculators

Pay Period Calendar Generator Every pay date for the year, 27-pay-period years flagged, .ics and CSV Calculators

T4/T4A Filing Deadline & Penalty Calculator The real per-slip-count late-filing penalty table Calculators

Unemployment Base Period Calculator (US) Find your base period and alternate base period quarters from your filing date Calculators

Unemployment Waiting Week by State (US) Which states have an unemployment waiting week, when it is paid, and your first payable week Calculators

Partial Unemployment Benefit Calculator (US) Reduced weekly unemployment benefit when you work part-time, by state earnings disregard Calculators

How Long Can I Collect Unemployment? (US) Most unemployment you can collect and for how many weeks, from your weekly benefit and wages Calculators

Do I Qualify for Unemployment? Earnings Checker (US) Check the base-period earnings test to qualify for unemployment in 18 states Calculators

IRS Refund Date Estimator Estimate e-file, paper, EITC and ACTC federal refund timing Calculators

Income Tax Calculator PEI Six PEI brackets, including the new 20% above $200,000, plus federal tax Calculators

Political Contribution Tax Credit Calculator Federal 75%/50%/33⅓% credit, max $650 Calculators

Saskatchewan Income Tax Calculator Federal and SK brackets, marginal and average rate Calculators

Estimated Tax Underpayment Penalty Calculator Form 2210 penalty by installment plus 90/100/110% safe harbor check Calculators

Is Unemployment Taxable? Tax & Withholding Calculator (US) Estimate federal and state tax on unemployment benefits and check the 10% withholding Calculators

Salary vs Dividend Calculator (Ontario) Salary or non-eligible dividend from your corporation, with CPP and RRSP room Calculators

Ontario Dividend Tax Calculator Eligible and non-eligible dividends with the federal and Ontario credits Calculators

Corporate Tax Rate by Province Calculator Small business and general rates for 2026, with mid-year changes prorated Calculators

CCA Calculator (Capital Cost Allowance Schedule) Year-by-year UCC and CCA on a declining balance with the half-year rule Calculators

T2 Late-Filing Penalty Calculator 5% plus 1% a month on unpaid tax, or 10% plus 2% for repeat filers Calculators

Meals and Entertainment Deduction Calculator The 50% limit, the 80% trucker rate and the cases the limit skips Calculators

Owner-Manager Salary, RRSP Room and CPP Calculator What a salary from your corporation buys in RRSP room and CPP Calculators

Term vs Whole Life Cost Calculator Term and whole life premiums over time, and the invested difference against cash value Calculators

Home Insurance Replacement Cost Calculator Rebuild cost from square feet and your cost per square foot, compared with your dwelling limit Calculators

Home Insurance 80% Rule Calculator Claim payout and penalty when dwelling coverage is below 80% of replacement cost Calculators

Insurance Deductible Break-Even Calculator Yearly saving, years to break even and break-even claim chance for two deductibles Calculators

Disability Insurance Needs Calculator Monthly disability benefit needed, the gap against what you have and waiting-period cash Calculators

Umbrella Insurance Needs Calculator Umbrella limit in $1 million steps from net worth and existing liability limits Calculators

Insurance Premiums as a Percent of Income Calculator Total insurance premiums as a share of gross and take-home income Calculators

Insurance Coverage Gap Calculator Need versus coverage for life, disability, home and liability, with each shortfall Calculators

Extended Warranty Worth It Calculator Expected payout against the plan price, and the break-even failure chance Calculators

Cash-on-Cash Return Calculator Annual cash flow divided by the cash you put in, from rent, expenses and mortgage Calculators

NOI Calculator NOI, effective gross income and operating expense ratio from rent and costs Calculators

Gross Rent Multiplier (GRM) Calculator Price divided by annual rent, with a value estimate from a comparable GRM Calculators

1% Rule Calculator Does monthly rent reach 1% of price? Rent needed and maximum price at your target Calculators

50% Rule Calculator Estimate NOI and cash flow by assuming expenses are half of rent, then compare real costs Calculators

BRRRR Calculator Cash left in the deal after the refinance, plus rent, cash flow and cash-on-cash return Calculators

Rental Break-Even Occupancy Calculator The occupancy needed to cover operating costs and mortgage payments, and how much vacancy you can absorb Calculators

House Hacking Calculator Your net monthly housing cost after renting out rooms or units, and the saving versus renting Calculators

Rental Property Reserves Calculator Monthly set-aside for vacancy, routine repairs and big replacements like the roof and furnace Calculators

Property Value from Cap Rate Calculator Value an income property by dividing NOI by a cap rate, with a sensitivity range Calculators

Employee Turnover Rate CalculatorTurnover rate from separations and average headcount, annualised and voluntary.Calculators

Cost Per Hire CalculatorCost per hire from internal and external recruiting costs and number of hires.Calculators

Cost of Employee Turnover CalculatorCost of one departure and of a year of turnover from your recruiting, training and lost-output inputs.Calculators

PTO Accrual CalculatorPTO earned per pay period or per hour worked, with carry-over, cap and balance.Calculators

US Overtime Pay Calculator (FLSA)Federal FLSA overtime: regular rate, time and a half over 40 hours, bonuses and two pay rates.Calculators

Time to Fill CalculatorAverage and median days to fill roles, target hit rate and vacancy cost.Calculators

Payroll Burden Multiplier CalculatorBurden rate and multiplier from US employer payroll taxes, benefits and insurance.Calculators

Job Offer Comparison CalculatorTwo job offers compared on total yearly value, commute cost and value per working hour.Calculators

Remote Work Stipend CalculatorYearly stipend budget and break-even against the office seats you could give up.Calculators

Headcount Planning CalculatorFTE needed from workload, leave and utilization, with hires to plan for.Calculators

LLM Token Estimator: Characters and Words to TokensEstimate tokens from characters and words, with an optional input cost. A heuristic, not a tokenizer.

LLM API Cost Calculator: Cost Per Request and Per 1,000Cost per request, per 1,000 and in total from input and output tokens and your per-million prices.

LLM Monthly Bill Forecaster: API Cost With GrowthMonthly LLM API bill from requests per day, average tokens and prices, with growth over up to 36 months.

Prompt Caching Savings Calculator: Cache Hit Ratio and CostSavings from prompt caching using your hit ratio and cache write and read multipliers, with the break-even hit ratio.

Batch API Discount Calculator: LLM Batch vs Real-Time CostStandard versus batch API cost for a workload, using your batch discount and the share that can be batched.

Context Window Calculator: Will My Prompt Fit?Check system prompt, history, RAG chunks and output reserve against a context window, and see the chunks that still fit.

Chat Conversation Cost Calculator: Why Long Chats Cost MoreTurn-by-turn cost of a chat that resends history each turn, with an optional history window.

RAG Chunk Size and Overlap Calculator: Chunks and Embedding CostChunks, overlap overhead and embedding cost for a document set from chunk size, overlap and your embedding price.

LLM Model Price Comparison: Cost and Break-Even VolumeCompare two or three price sets on your workload and find the break-even request volume.

Tokens Per Second to Response Time Calculator for LLMsResponse time from output tokens, tokens per second and time to first token, or the speed needed for a target.

Seeding Rate Calculator (TKW) Pounds per acre and kg per hectare of seed from target stand, thousand kernel weight, germination and mortality Calculators

Row Crop Seed Spacing and Population Inches between seeds and seeds per acre for a target plant population, plus plants per acre from a stand count Calculators

Sprayer Calibration (Gallons per Acre) Gallons per acre from nozzle output, speed and spacing, the nozzle GPM for a target rate, and acres per tank Calculators

Acre-Inch Irrigation Calculator Gallons, pumping hours and GPM per acre from acres, inches to apply, pump flow and system efficiency Calculators

Grain Bin Capacity Calculator Bushels in a round or rectangular grain bin from size and grain depth, with optional peak and weight Calculators

Bushels to Tonnes Converter Bushels, tonnes and tons by crop, bushels per acre to tonnes per hectare, and price per bushel to price per tonne Calculators

Hay Bale Weight and Yield Calculator Round or square bale weight from size and density, tons per acre from bales cut, and bales to feed a herd Calculators

Fertilizer Cost per Pound of Nutrient Cost per pound of N, P2O5 or K2O from the analysis and price per ton, with credit for other nutrients Calculators

Fertilizer Blend Rate and Cost per Acre Product rate in lb per acre for target N, P2O5 and K2O from a blend analysis, with cost per acre and total tons Calculators

Crop Break-Even Price and Yield Calculator Break-even price and yield, revenue and profit per acre from your costs per acre, expected yield and price Calculators

Car Affordability 20/4/10 Calculator Check a car against the 20/4/10 rule of thumb: 20% down, 48 months, 10% of gross income, plus the most you could spend Calculators

Car Down Payment Calculator Compare up to four down payments on one car loan: payment, total interest, and interest saved versus what the cash could earn Calculators

Car Loan Term Comparison Calculator Four car loan terms side by side: payment, total interest, extra interest, and months owing more than the car is worth Calculators

Car Sales Tax and Out-the-Door Price Calculator Car sales tax and out-the-door price from your tax rate, fees and trade-in, with or without a trade-in tax credit Calculators

Lease Residual Value Calculator Residual value from MSRP and a residual percentage, the lease payment it gives, and payments at residuals 5 and 10 points higher or lower Calculators

Lease Buyout Calculator Lease buyout price with fee and tax versus the car's market value and the cost of returning it, plus an optional loan payment Calculators

Lease Mileage Overage Calculator Projected lease mileage overage from your pace so far, the charge, and the monthly distance that keeps you under the limit Calculators

Car Cost Per Km or Mile Calculator Total cost of owning a car per year, per month and per km or mile from depreciation, finance, insurance, upkeep and fuel Calculators

Repair or Replace Car Calculator Compare fixing and keeping your car with replacing it over a set number of years, plus the repair-to-value ratio Calculators

Coast FIRE Calculator Coast number today and by age, and when you reach it Calculators

TFSA Interest Calculator Interest by year, TFSA vs a taxable account Calculators

TFSA Withdrawal and Re-Contribution Calculator When withdrawn room returns and the cost of re-depositing early Calculators

TFSA Growth Calculator Balance by year and years to reach a goal Calculators

TFSA Limit by Year The 2009 to 2026 TFSA limit table and room by the year you turned 18 Calculators

TFSA Over-Contribution Penalty Calculator The 1% a month tax on a TFSA excess Calculators

TFSA Contribution Room for Newcomers TFSA room from the year you became a Canadian resident Calculators

TFSA vs FHSA Calculator Same savings with and without the FHSA deduction Calculators

TFSA Room by Birth Year TFSA contribution room by birth year, 1991 to 2008, through 2026 Calculators

TFSA Per Paycheque Calculator How much to put in each pay period to use your TFSA room Calculators

TFSA Room for Couples Two partners, two separate TFSA rooms, added up Calculators

TFSA Lump Sum vs Monthly Calculator January deposit against twelve monthly deposits Calculators

TFSA Years to Fill Your Room The year your unused TFSA room is used up Calculators

Barista FIRE Calculator Smaller FIRE target when part-time income covers part of spending Calculators

4% Rule Calculator 25x number plus portfolio needed at 3% to 5% withdrawal rates Calculators

Savings Rate to Years to Retire Years to financial independence by savings rate, 10% to 80% Calculators

Retirement Income Gap Calculator Yearly gap after CPP, OAS and pension, and the portfolio to fill it Calculators

Sequence of Returns Risk Calculator Same yearly returns in two orders, with withdrawals Calculators

Early Retirement Healthcare Bridge Health cost from early retirement until public coverage starts Calculators

Retirement Countdown Calculator Days, weekdays and paychecks until your retirement date Calculators

Pet Lifetime Cost Calculator Lifetime cost of a dog or cat from your own yearly costs, lifespan and inflation Calculators

Pet Insurance vs Savings Calculator Break-even vet bill for pet insurance from premium, deductible, reimbursement and limit Calculators

Pet Food Cost Per Day Calculator Daily, monthly and yearly pet food cost from bag price, bag weight and daily amount Calculators

How Long Will a Bag of Pet Food Last Days a bag of dog or cat food lasts from bag weight and daily amount, with run-out and reorder dates Calculators

Annual Vet Budget Calculator Yearly and monthly vet budget for a dog or cat from exams, vaccines, prevention, dental and an emergency set-aside Calculators

Pet Boarding vs Pet Sitter Cost Calculator Compare a kennel’s nightly rate with a sitter’s visit rate for your trip, with extra pets, fees and tip Calculators

Dog Grooming Cost Per Year Calculator Yearly dog grooming cost from price, tip, add-ons and visits, with a home grooming payback comparison Calculators

Dog Walker Cost Per Walk Calculator Dog walker cost per walk, week, month and year, with tip, extra dogs and a package comparison Calculators

Pet Emergency Fund Calculator Months to build a pet emergency fund, or the monthly deposit needed to reach it by a date Calculators

RAID Calculator Usable capacity, space lost and fault tolerance for RAID 0, 1, 5, 6, 10, JBOD and SHR-style layouts. Calculators

RAID Rebuild Time Calculator Estimated hours or days to rebuild a replaced RAID drive from its size, rebuild speed and how busy the array is. Calculators

RAID Rebuild URE Risk Calculator Probability of at least one unrecoverable read error while rebuilding RAID 5, RAID 6 or a mirror, from the drive URE rate. Calculators

3-2-1 Backup Storage Calculator Space needed for full plus incremental backups and for all three copies in a 3-2-1 backup plan. Calculators

Backup Window Calculator Backup time from data size and effective bandwidth, and how much data fits in a backup window. Calculators

SSD Endurance Calculator Years of SSD life from its TBW or DWPD rating and your average daily writes. Calculators

Hard Drive Cost per TB Calculator Total cost of ownership per TB for a hard drive: purchase price plus electricity over the years you run it. Calculators

Cloud Backup vs NAS Break-Even Calculator Month when buying a NAS becomes cheaper than paying a cloud backup price per TB each month. Calculators

Photo and Video Library Growth Calculator How fast a photo and video library grows from files per month and average size, and when it fills a drive. Calculators

Drive Failure Rate to Array Failure Probability Calculator From a drive annualized failure rate to the chance that too many drives in an array fail over a number of years. Calculators

Dental Cost Per Year Calculator Yearly dental cost with insurance premiums, deductible, coinsurance and annual maximum, against no insurance Calculators

Botox Cost Per Year Calculator Yearly and monthly cost of neuromodulator visits from your own units, price per unit and interval Calculators

Botox Per-Unit vs Flat Price Calculator Compare a per-unit quote with a flat per-area quote and find the break-even number of units Calculators

Dermal Filler Cost Per Year Calculator Yearly and monthly filler cost from your syringes, price and months between touch-ups Calculators

Filler Cost Per Month Comparison Calculator Compare up to three treatment quotes by cost per month of expected results Calculators

Aesthetic Clinic Membership Break-Even Calculator Yearly cost with a clinic membership against regular prices, and the break-even number of visits Calculators

Aesthetic Treatment Savings Goal Calculator Monthly and weekly amount to set aside for your next planned treatment visit Calculators

Next Aesthetic Appointment Date Calculator Dates of your next visits from your last visit and your planned interval in months Calculators

Aesthetic Treatment Annual Budget Calculator Yearly, monthly and weekly budget for toxin, filler and extras, with ASPS average costs for context Calculators

Dental Insurance Annual Maximum Planner Remaining annual maximum, and what you pay doing a large treatment now versus splitting it across two plan years Calculators

Braces and Aligner Payment Plan Calculator Monthly payment and total interest on braces or aligners after insurance and a down payment Calculators

Teeth Whitening Cost Per Shade Calculator Cost per shade, cost per day and boxes needed for whitening strips, from the shades a box gave you Calculators

Electric Toothbrush Payback Calculator Running cost of an electric toothbrush with replacement heads against a manual one, per year and per day Calculators

Floss and Mouthwash Cost Per Day Calculator Daily, monthly and yearly cost of floss, mouthwash and toothpaste from price, package size and use Calculators

Filling vs Crown Cost Calculator Cost over time of repeat fillings against a crown, from your prices, lifespans and coverage Calculators

Toothbrush Replacement Date Calculator Next toothbrush change dates at the ADA 3 to 4 month interval, with brushes and cost per year Calculators

Tooth Brushing Timer A 2-minute brushing timer with four 30-second mouth sections and an optional beep Calculators

Pack-Year Calculator Pack-years from cigarettes per day and years smoked, with the USPSTF lung screening criteria shown as information only. Calculators

Cigarette Cost Calculator What cigarettes cost per day, week, month, year and over the years you smoke, from your own pack price. Calculators

Quit Smoking Savings Tracker Days smoke-free, cigarettes not smoked and money saved since your quit date. Calculators

Smoke-Free Milestone Timeline American Cancer Society quit-smoking health milestones placed on your calendar from your quit date. Calculators

Vape and Pod Cost Calculator Weekly, monthly and yearly vape cost from e-liquid or pods, and nicotine mg per day from mL and strength. Calculators

Cigarette vs Vape vs Pouch Cost Compare Side-by-side yearly cost of cigarettes, vaping and nicotine pouches from your own prices. Calculators

Rolling Tobacco Cost Per Cigarette Calculator Cost per rolled cigarette from pouch size, price and grams per cigarette, compared with packs. Calculators

Smoking Cost Invested Calculator What your monthly cigarette spending would add up to if saved or invested at a rate you choose. Calculators

Drill Speed (RPM) Calculator RPM range for a drill bit by material and diameter Calculators

Surface Speed (SFM) Calculator Surface feet and metres per minute from RPM and diameter Calculators

Milling Feed Rate Calculator Feed rate from RPM, flutes and chip load per tooth Calculators

Metric Thread Pitch Chart Coarse and fine pitch, minor diameter and stress area for M1 to M64 Calculators

UNC and UNF Thread Chart Threads per inch, pitch and minor diameter for UNC and UNF, #0 to 1 in Calculators

Bolt Circle Calculator X and Y coordinates of equally spaced holes on a bolt circle (PCD) Calculators

Bolt Clearance Hole Size Chart Close, normal and loose clearance holes for metric and inch fasteners Calculators

Sine Bar Calculator Gauge block stack height for an angle on a 100 mm, 5 in or 10 in sine bar Calculators

Lathe Turning RPM and Time Calculator Spindle RPM, feed per minute, cutting time and removal rate for turning Calculators

Taper Per Foot Calculator Taper per foot, ratio, half angle and included angle from two diameters Calculators

Tap Drill Size Calculator Tap drill for metric and inch threads, minor diameter and thread depth Calculators

Bolt Torque Calculator Torque for metric classes and SAE grades 2, 5 and 8 from proof load and friction Calculators

Sheet Metal Bend Allowance Calculator Bend allowance, bend deduction, K-factor and flat pattern length Calculators

Metal Weight Calculator Weight of plate, bar, tube and angle in steel, aluminum, brass and copper Calculators

Welding Wire and Electrode Usage Calculator MIG, flux-core and stick consumable needed for a fillet or groove weld Calculators

Wire Gauge Amp Rating Calculator Smallest copper or aluminum AWG for a load, from an NEC-based chart Calculators

AWG to mm Calculator Wire diameter and area for any AWG size, or the AWG for a measured diameter Calculators

Slab Rebar Grid Calculator Bar count, length and weight of a rebar grid for a rectangular slab Calculators

Spread Footing Size Calculator Footing side or width from load and allowable soil bearing pressure Calculators

Sheet Metal Gauge Chart Gauge to thickness in inches and mm for steel and aluminum, with sheet weight Calculators

Rebar Weight Calculator Weight of rebar by bar size, length and count in lb, kg and tonnes Calculators

Shielding Gas Cylinder Duration Calculator Hours an argon cylinder lasts at your cfh or L/min flow, with cost per hour Calculators

Stick Welding Amperage Chart Amp range for E6010, E6011, E6013 and E7018 electrodes by diameter Calculators

Welder Duty Cycle Calculator Welding minutes per 10 from a duty cycle rating, estimated at other amps Calculators

Welding Heat Input Calculator Arc energy and heat input in kJ/mm and kJ/in from volts, amps and speed Calculators

In-Home Care Cost Calculator Monthly and yearly cost of in-home care from hours a week and an hourly rate, agency versus a private caregiver. Calculators

Care Hours Needed Calculator Weekly hours of help from an ADL and IADL checklist, Katz and Lawton style. Descriptive planning aid, not a diagnosis. Calculators

Assisted Living vs Home Care Cost Calculator Compare staying home with paid care against assisted living: monthly cost, multi-year total and break-even care hours. Calculators

Long-Term Care Insurance Break-Even Calculator Premiums paid versus benefit pool, with a compound inflation rider, and the years of care to break even. Calculators

Sibling Caregiver Cost Split Calculator Split elder care costs between siblings equally, by income, or after crediting unpaid caregiving time. Calculators

Aging-in-Place Home Modification Budget Calculator Budget grab bars, a ramp, wider doorways and more from your quotes, with a 1:12 ramp length helper. Calculators

Adult Day Program and Respite Cost Calculator Monthly and yearly adult day program and respite cost, with cost per hour of caregiver relief. Calculators

Elder Care Cost Inflation Projector Project monthly care cost year by year from the care start age to 85 or later at a growth rate you choose. Calculators

Home Equity Care Funding Runway Calculator How many months home equity and savings can fund care after income, with yearly cost growth.

Ear Gauge Size Converter Gauge to mm and inches, or mm to the nearest gauge, with a 20g to 00g chart Calculators

Ear Stretching Schedule Planner Dated one-gauge steps from your size to your target, with mm added each step Calculators

Airbnb Cash-on-Cash and Cap Rate Calculator With Seasons Estimate cap rate and cash-on-cash return for a short-term rental with peak, shoulder and low seasons,... Calculators

Airbnb vs Long-Term Rental Calculator: Which Earns More? Compare yearly net income from a short-term rental against a long-term tenant for the same property, with the... Calculators

Cottage Food Price Per Unit Calculator: Retail and Wholesale Price Cost per unit and retail and wholesale price for baked goods, jams and other home-made food from batch... Calculators

Food Truck Loan Payment Calculator: Monthly Payment and Total Interest Monthly payment, total interest and total cost for a food truck or trailer loan from the price, down payment,... Calculators

Food Truck Profit and Break-Even Calculator: Daily and Monthly Monthly and daily food truck profit from sales per day, food cost, card fees, labour and fixed costs, with... Calculators

Food Truck Startup Cost Calculator: Truck, Build-Out, Permits and Cash Reserve Add up your own food truck startup costs (truck, build-out, permits, POS, opening inventory), a contingency and... Calculators

Market Day Inventory Planner: How Many Units to Bring How many units of an item to bring to a market from expected customers, share who buy, units per buyer, a... Calculators

Menu Price from Food Cost Percentage Calculator: Price, Markup and Margin Menu price from the cost per portion and a target food cost percentage, with gross profit, markup multiple and... Calculators

Plate Cost Calculator with Yield: Cost per Plate and Menu Price Cost of one plate from up to six ingredient lines, using pack price, pack size, amount used and trim yield,... Calculators

Vendor Fee vs Percentage of Sales Calculator: Flat Booth Fee or Percentage Compare a flat event or booth fee with a percentage-of-sales fee (optionally plus a flat part) at your expected... Calculators

Curl Pattern Quiz: Find Your Hair Type 2A to 4C Free curl pattern quiz and hair type calculator Calculators

Hair Length Retention Tracker: Growth vs Breakage Free hair length retention tracker Calculators

Hair Porosity Test Result Interpreter: Low, Normal or High Free hair porosity test result interpreter Calculators

How Often to Wash Textured Hair: Frequency Suggester Free hair wash frequency suggester for wavy, curly and coily hair Calculators

Loc Retwist Schedule: How Often and Cost Per Year Free loc retwist schedule calculator Calculators

Protective Style Rotation Planner: Wear, Takedown, Rest Free protective style rotation planner Calculators

Words to Number Converter Spelled-out English numbers converted back to digits, with hyphens, "and", minus and decimals Calculators

Ordinal Number Generator Ordinal suffixes (1st, 2nd, 3rd, 11th) and spelled-out ordinals for any number or range Calculators

Roman Numeral Date Converter Any date written in Roman numerals, in day-month-year, month-day-year or year-month-day order Calculators

Roman Numeral Calculator Add, subtract, multiply and divide Roman numerals, with the answer in Roman numerals and numbers Calculators

Chinese Numerals Converter Numbers in standard, traditional and formal financial Chinese characters with correct 零 placement Calculators

Greek Numerals Converter Numbers from 1 to 9999 in alphabetic Greek numerals, and Greek numerals back to numbers Calculators

Maya Numerals Converter Numbers in Maya dots, bars and shells with drawn glyphs, Unicode and the Long Count variant Calculators

Gestational Age from CRL Calculator Convert an ultrasound crown-rump length (CRL) in mm into gestational age in weeks and days using the Hadlock... Calculators

Cycle Length Average and Regularity Calculator Enter your logged cycle lengths to get the average, median, range and standard deviation, and see how many fall... Calculators

Days Supply Calculator: How Long Will My Medication Last? Work out the days supply of a prescription from the quantity and the dose: tablets, liquid mL, inhaler puffs,... Calculators

Fertile Window Calculator for Irregular Cycles Estimate a fertile window for irregular periods with the calendar method: shortest cycle minus 18 to longest... Calculators

hCG Doubling Time Calculator Enter two hCG results and the hours between them to get the doubling time and the 48 hour rise, compared with... Calculators

Liquid Medicine Dose Converter: mg to mL to Teaspoons Convert a dose in mg to mL (and teaspoons) from the concentration printed on the bottle, or mL back to mg, and... Calculators

Luteal Phase Length Calculator Count your luteal phase in days from your LH peak or ovulation day to the day before your next period, and... Calculators

Medication Adherence PDC Calculator (Proportion of Days Covered) Calculate proportion of days covered (PDC) from fill dates and days supply: covered days divided by days in the... Calculators

Medication Schedule Spacing Calculator (q4h, q6h, BID, TID) Turn "every 4, 6 or 8 hours" or "2, 3 or 4 times a day" into clock times: round the clock... Calculators

Medication Taper Schedule Calculator (From Your Step List) Turn a taper step list your prescriber gave you into tablets per day, dates and total tablets needed Calculators

Perimenopause Cycle Tracker Enter your recent cycle lengths to see cycle variability and whether they show the STRAW+10 bleeding signs of... Calculators

Period Late Calculator See how many days late your period is from your last period date and usual cycle length, and when the NHS says... Calculators

Pill Splitting Calculator: Tablets per Dose from Tablet Strength Convert a dose in mg to the number of tablets from the tablet strength (whole, half, quarter), then to tablets... Calculators

Pregnancy Test Timing Calculator Find when to take a pregnancy test from your ovulation date: the implantation window in days past ovulation... Calculators

Refill Date and Early Refill Window Calculator Find the date a prescription runs out and the earliest day a refill may be allowed, from the fill date, the... Calculators

Travel Medication Quantity Planner (Trip Days Plus Buffer) Work out how much medication to pack for a trip: trip days plus spare days times your daily amount, split... Calculators

Arithmetic Sequence Calculator (nth Term and Sum) Free arithmetic sequence calculator Calculators

Distance, Midpoint and Slope Calculator (Line Equation) Free distance, midpoint and slope calculator for two points, with the line equation in slope-intercept,... Calculators

Geometric Sequence Calculator (nth Term, Sum, Infinite Series) Free geometric sequence calculator Calculators

Logarithm Calculator (Any Base, Change of Base, ln) Free logarithm calculator Calculators

Matrix Calculator (2x2 and 3x3: Determinant, Inverse, Multiply) Free 2x2 and 3x3 matrix calculator with exact fractions Calculators

Permutation, Combination and Factorial Calculator (nPr, nCr, n!) Free permutation, combination and factorial calculator with big-integer support Calculators

Quadratic Formula Calculator (Roots, Discriminant, Vertex) Free quadratic formula calculator Calculators

Unit Circle Calculator (Sin, Cos, Tan, Exact Values) Free unit circle calculator Calculators

Volume and Surface Area Calculator (Sphere, Cone, Cylinder, Pyramid) Free volume and surface area calculator for a sphere, cone, cylinder and pyramid, plus area of a trapezoid,... Calculators

Prime Factorization Calculator Prime factors with exponents for numbers up to 10^24, with divisor count and check Calculators

Is It Prime? Checker Test if a number up to 10^24 is prime, with the factors if not and the next and previous prime Calculators

Modular Inverse Calculator a^-1 mod m with the extended Euclid steps, and why no inverse exists when gcd(a, m) is not 1 Calculators

Extended Euclidean Algorithm Calculator gcd(a, b) with Bezout coefficients x and y, every division step, the LCM and a check Calculators

Birthday Paradox Calculator Chance that two of n people share a birthday, and the group size needed for 50, 90 and 99 percent Calculators

Fibonacci Calculator The exact nth Fibonacci number up to n = 100,000, the first terms, and a test for whether a number is Fibonacci Calculators

Collatz Conjecture Calculator The 3x+1 sequence for any start: steps to reach 1, the peak value and the full path Calculators

Perfect and Amicable Number Checker Classify a number as perfect, abundant or deficient from its proper divisors, and find its amicable partner Calculators

Confusion Matrix Calculator Accuracy, precision, recall, specificity, F1, MCC and kappa from TP, FP, FN, TN Calculators

F1 Score Calculator F1 and F-beta (F2, F0.5) with precision and recall from TP, FP, FN Calculators

Matthews Correlation Coefficient Calculator MCC (phi coefficient) from a binary confusion matrix, compared with accuracy and F1 Calculators

Cohen's Kappa Calculator Cohen's kappa with optional linear or quadratic weights from an agreement matrix Calculators

Multiclass F1 Calculator (Macro, Micro, Weighted) Per-class precision, recall, F1 with macro, micro and weighted averages from an N x N matrix Calculators

AUC ROC Calculator Area under the ROC curve from FPR and TPR threshold points by the trapezoidal rule Calculators

Precision at K Calculator Precision@k, recall@k, R-precision and average precision from a ranked relevance list Calculators

Positive Predictive Value Calculator (Bayes) PPV and NPV from sensitivity, specificity and prevalence with a natural-frequency table Calculators

Train Test Split Calculator Exact train, validation and test sample counts from percentages, with scikit-learn rounding Calculators

Training Steps and Epochs Calculator Batches per epoch, optimizer steps, effective batch size and warmup steps for a training run Calculators

Reynolds Number Calculator Classify internal pipe flow from velocity, density, and viscosity Calculators

Mach Number Calculator Compare speed with the local speed of sound Calculators

Gear Ratio Calculator Find output speed and torque from tooth counts Calculators

Thermal Resistance Calculator Estimate conduction resistance and heat flow Calculators

Beam Deflection Calculator Estimate centre deflection for a simply supported beam Calculators

Resistor Color Code Calculator Read 4, 5 and 6 band resistors to ohms and tolerance, or find the colors for a value Calculators

LED Resistor Calculator Series resistor for an LED from supply voltage, forward voltage and current, with E12 and E24 values Calculators

Voltage Divider Calculator Output voltage of a two-resistor divider, or the R2 for a target output, with load effect Calculators

Capacitor Code Calculator Decode 104, 473K and other three-digit capacitor codes to pF, nF and uF Calculators

555 Timer Calculator Astable frequency and duty cycle, capacitor for a target frequency, and monostable pulse width Calculators

RC Time Constant Calculator Time constant, time to charge to a percent, and cutoff frequency from R and C Calculators

Battery Life Calculator (mAh) Runtime from battery mAh and load, with usable capacity and sleep/active duty cycle Calculators

Resistor Series and Parallel Calculator Total resistance of any number of resistors in series and in parallel Calculators

Arduino PWM Calculator analogWrite value, duty cycle, average voltage and PWM frequency by board Calculators

Arduino Baud Rate Calculator UBRR value, actual baud rate and error percent for an ATmega328P serial port Calculators

Projectile Motion Calculator Range, peak height and flight time from launch speed, angle and height Calculators

Kinematics Calculator Solve any two of s, u, v, a, t from the other three Calculators

Free Fall Calculator Drop time and impact speed from a height, on Earth or another world Calculators

Momentum and Collision Calculator Momentum and final velocities for elastic and inelastic 1D collisions Calculators

Kinetic Energy and Work Calculator Kinetic and potential energy, work, power and the work-energy speed Calculators

Pendulum Period Calculator Pendulum period with large-angle correction, and mass-on-spring period Calculators

Wavelength and Frequency Calculator Wavelength, frequency or speed from v = f x wavelength, sound and light presets Calculators

Doppler Effect Calculator Observed frequency for a moving source or observer of sound Calculators

Snell's Law Calculator Refraction angle, critical angle and total internal reflection with an index table Calculators

Specific Heat Calculator Heat Q = mc deltaT and final temperature when two substances mix Calculators

Torque to Horsepower Calculator Power, torque and rpm: enter two, solve the third, in kW, hp and PS Calculators

Torque Converter Convert Nm to lb-ft, lbf-in, kgf-m and more Calculators

Beam Bending Stress Calculator Bending moment, stress (σ = Mc/I) and deflection for four beam cases Calculators

Moment of Inertia Calculator Second moment of area and section modulus for six common sections Calculators

Pulley Belt Length Calculator Open and crossed belt length from two pulley diameters and centre distance Calculators

Pulley RPM Calculator Solve pulley rpm or diameter from d1 × n1 = d2 × n2, with belt speed Calculators

Spring Rate Calculator Spring constant k = Gd⁴/(8ND³) and force at a given compression Calculators

Roller Chain Length Calculator Links and pitches of roller chain from sprocket teeth, centre distance and pitch Calculators

Belt Wrap Angle Calculator Arc of contact on each pulley of an open belt from diameters and centre distance Calculators

Hydraulic Cylinder Force Calculator Push and pull force of a hydraulic or pneumatic cylinder from bore, rod and pressure Calculators

Lever Mechanical Advantage Calculator Mechanical advantage of a lever and the effort or load force from the fulcrum distances Calculators

Block and Tackle Calculator Pulling force, mechanical advantage and rope length for a block and tackle Calculators

Shaft Torsion Stress Calculator Shear stress, twist and minimum diameter of a solid or hollow shaft under torque Calculators

Spring Stress Calculator Shear stress, Wahl factor, maximum load and solid length of a compression spring Calculators

Pipe Pressure Drop Calculator Darcy-Weisbach friction loss and head loss for water in a straight pipe Calculators

Thermal Expansion Calculator Length change ΔL = αLΔT for metals, plastics, glass and concrete Calculators

Molar Mass Calculator Molar mass in g/mol from any chemical formula, with hydrates Calculators

Percent Composition Calculator Mass percent of each element in a compound and in a sample Calculators

Molarity Calculator Molarity, grams to weigh or final volume from moles and molar mass Calculators

Dilution Calculator (C1V1 = C2V2) Solve C1V1 = C2V2 and see the diluent to add Calculators

Serial Dilution Calculator Transfer and diluent volumes and concentration for every tube in a series Calculators

CFU per mL Calculator Colony counts, dilution and volume plated to CFU/mL with a countable-range check Calculators

OD600 to Cells per mL Calculator Estimate cells per mL from an OD600 reading, or the OD for a target density Calculators

A260 DNA and RNA Concentration Calculator Convert A260 to ng/uL for dsDNA, ssDNA or RNA with yield and A260/A280 purity Calculators

PCR Master Mix Calculator Scale a PCR recipe to any number of reactions with overage and water to volume Calculators

DNA Copy Number Calculator Convert ng of dsDNA and length in bp to pmol and number of copies, or back Calculators

Ligation Insert:Vector Ratio Calculator ng of insert needed for a molar insert:vector ratio such as 3:1 Calculators

Hemocytometer Cell Count Calculator Cells per mL, total cells, viability and seeding volume from a chamber count Calculators

Bacterial Doubling Time Calculator Doubling time, growth rate and generations from two counts, or predict a count Calculators

pH Calculator pH and pOH from strong acid, strong base, weak acid Ka or ion concentration Calculators

Buffer Calculator (Henderson-Hasselbalch) Buffer pH from pKa and ratio, or ratio and moles for a target pH Calculators

Ideal Gas Law Calculator (PV = nRT) Solve pressure, volume, moles or temperature with unit conversion Calculators

Limiting Reagent Calculator Limiting reactant, theoretical yield, leftovers and percent yield Calculators

Percent Solution Calculator (w/v, w/w, v/v) Solute needed for a weight/volume, weight/weight or volume/volume percent solution Calculators

Weight on Other Planets Calculator What you would weigh on the Moon, Mars and Jupiter Calculators

Light Travel Time Calculator How long light takes to cross any distance Calculators

Light-Year, AU and Parsec Converter Convert astronomical distance units Calculators

Orbital Period Calculator Length of a year from semi-major axis (Kepler) Calculators

Telescope Magnification Calculator Magnification, field of view and exit pupil Calculators

Telescope Limiting Magnitude Calculator Faintest star a telescope can show Calculators

Moon Phase Calculator Phase, illumination and age for any date Calculators

Escape Velocity Calculator Speed needed to escape a planet or moon Calculators

Punnett Square Calculator Monohybrid and dihybrid crosses with ratios and percentages Calculators

Blood Type Inheritance Calculator Possible child ABO and Rh types from parents and grandparents Calculators

Hardy-Weinberg Calculator Genotype frequencies, carriers and chi-square test Calculators

X-Linked Punnett Square Calculator Sons and daughters for an X-linked recessive trait Calculators

GC Content and Melting Temperature Calculator GC percentage and Tm of a DNA sequence Calculators

Codon Table Chart Look up codons and amino acids in the standard genetic code Calculators

Allele Frequency Calculator Allele and genotype frequencies from population counts Calculators

Genetic Probability Calculator Product rule, sum rule and chances across several children Calculators

Mendelian Ratio Chi-Square Calculator Test counts against 3:1, 1:2:1 or 9:3:3:1

Hohmann Transfer Calculator Delta-v and transfer time between two circular orbits Calculators

Orbital Velocity Calculator Speed and period of a circular or elliptical orbit Calculators

Synodic Period Calculator Time between planetary alignments and oppositions Calculators

Planet Surface Gravity Calculator Surface gravity from mass and radius, or pick a world Calculators

Telescope Resolving Power Calculator Dawes limit and Rayleigh criterion from aperture Calculators

Astrophotography Image Scale Calculator Arcseconds per pixel and sensor field of view Calculators

Boyle's Law Calculator Solve for the missing pressure or volume with Boyle's law, P1V1 = P2V2, at constant temperature Calculators

Charles's Law Calculator Solve for the missing volume or temperature with Charles's law, V1/T1 = V2/T2, at constant pressure Calculators

Gay-Lussac's Law Calculator Solve the missing pressure or temperature with Gay-Lussac's (Amontons's) law, P1/T1 = P2/T2, at constant volume Calculators

Combined Gas Law Calculator Solve for any one missing pressure, volume or temperature with the combined gas law, P1V1/T1 = P2V2/T2 Calculators

Calorimetry Calculator Final temperature or specific heat when two objects exchange heat Calculators

Water Phase Change Energy Calculator Energy to heat, melt or boil water from ice to steam Calculators

Stefan-Boltzmann Law Calculator Radiated power from temperature, area and emissivity Calculators

Carnot Efficiency Calculator Maximum heat engine efficiency from reservoir temperatures Calculators

Heat Transfer Rate Calculator Heat flow in watts by conduction, convection or radiation Calculators

LMTD Calculator Log mean temperature difference for a heat exchanger Calculators

Capacitor Energy Calculator Energy in joules and charge in coulombs stored in a capacitor from C and V Calculators

Capacitive Reactance Calculator Capacitive reactance XC in ohms from frequency and capacitance Calculators

Inductive Reactance Calculator Inductive reactance XL in ohms from frequency and inductance Calculators

LC Resonant Frequency Calculator Resonant frequency of an LC circuit, or the C or L for a target frequency Calculators

RC Low-Pass and High-Pass Filter Calculator RC low-pass and high-pass cutoff, gain in dB and phase, and C for a target cutoff Calculators

Capacitors in Series and Parallel Calculator Total capacitance of any number of capacitors in series and in parallel Calculators

Inductors in Series and Parallel Calculator Total inductance of any number of inductors in series and in parallel Calculators

PPM to Molarity Calculator Convert ppm, ppb and mg/L to mol/L and back with the molar mass Calculators

Normality Calculator Normality, grams to weigh and equivalent weight from the n-factor Calculators

Molality and Mole Fraction Calculator Molality, mole fraction and mass percent from grams of solute and solvent Calculators

Concentrated Stock Dilution Calculator Molarity of a stock from percent and density, and the volume to dilute Calculators

Osmolarity Calculator Ideal osmolarity and osmotic pressure from solute concentrations Calculators

Ionic Strength Calculator Ionic strength of a salt mixture from concentrations and ion charges Calculators

Angular Size Calculator How big an object looks from its size and distance Calculators

Parallax Distance Calculator Star distance in parsecs and light-years from parallax Calculators

Hill Sphere Calculator How far a planet's gravity can hold a moon Calculators

Surface Gravity Calculator Gravity on any planet or moon from mass and radius Calculators

Sidereal Time Calculator Greenwich and local sidereal time for any date and longitude Calculators

Cycling Gear & Cadence ChartCompare cassette speed and gear inches at a steady cadenceSports & Training

Cycling Watts per KgCompute W/kg and estimate climbing speed from powerSports & Training

E-bike Range CalculatorHow far an e-bike battery goes from its Wh and your Wh per km, and the battery size a trip needs.Sports & Training

E-bike Battery Wh CalculatorVolts times amp-hours is watt-hours. Convert both ways, estimate charge time, and check the FAA 100 Wh and 160 Wh limits.Sports & Training

E-bike Cost per km CalculatorCents per km, per 100 km and per year to run an e-bike from your Wh per km and electricity price, with optional battery wear.Sports & Training

Bike Power to Speed CalculatorSteady-state bike speed from pedal and motor watts, total mass, grade, wind and drag.Sports & Training

E-bike Hill Climb Watts CalculatorWheel watts to climb a grade at a chosen speed, and how much of it the motor must supply after your own pedalling.Sports & Training

Bike Chain Length CalculatorEstimate bike chain links from chainstay length and the big chainring and cog, with the standard and SRAM 1x extra links.Sports & Training

Bike Spoke Length CalculatorSpoke length from ERD, flange diameter, hub width, spoke count and crosses, for both sides of the wheel.Sports & Training

Bike ERD CalculatorEffective rim diameter from two measuring spokes, plus hub flange-to-centre and rim offset.Sports & Training

Bike Tire Pressure CalculatorRoad bike tire pressure by total weight and tire width, with front and rear psi and bar, from Frank Berto’s 15% tire drop chart.Sports & Training

Fixed Gear Skid Patch CalculatorFixed gear skid patches for single-footed and ambidextrous skidding, plus gear inches and development.Sports & Training

Bike Chain Wear CalculatorChain stretch percent from a 12 inch ruler check, against Park Tool and Sheldon Brown replacement points.Sports & Training

Bike Cassette Gear Step CalculatorGear jump and cadence change at each shift of a cassette, plus its range and ratios.Sports & Training

Bike Wheel Circumference CalculatorTire size to wheel circumference in mm for a bike computer, plus the distance error from a wrong setting.Sports & Training

Bike Commute Savings CalculatorYearly and monthly savings from cycling instead of driving to work, plus tailpipe CO2 avoided.Sports & Training

Climbing Grade ConverterApproximate YDS, French, and UIAA climbing gradesSports & Training

Rowing Split & PaceProject finish time, speed, and rough erg watts from splitSports & Training

Triathlon Race-Time PlannerCombine swim, bike, run, and transition estimatesSports & Training

Swim Send-Off CalculatorSet repeat intervals from pace, rest, and repeatsSports & Training

Golf Handicap Index CalculatorHandicap Index from your rounds with the World Handicap System tableSports & Training

Golf Course Handicap CalculatorStrokes on a set of tees from Index, Slope Rating, Course Rating and parSports & Training

Batting Average, OBP, SLG and OPS CalculatorBatting average, OBP, slugging and OPS from a stat lineSports & Training

ERA and WHIP CalculatorERA and WHIP from innings, earned runs, hits and walksSports & Training

NFL Passer Rating CalculatorQuarterback passer rating on the 0 to 158.3 scale with all four componentsSports & Training

Swim CSS Pace CalculatorCritical swim speed pace per 100 m from a 200 m and 400 m time trialSports & Training

FTP and Power Zones CalculatorFTP from a 20-minute test and the seven Coggan power zones in wattsSports & Training

VDOT CalculatorVDOT score from a race result and equivalent times from 1500 m to the marathonSports & Training

Tobler's Hiking Function CalculatorWalking speed and hiking time from trail grade, on or off the trailSports & Training

Backpacking Pack Weight CalculatorTotal pack weight, percent of body weight and base weight class, with how much to cutSports & Training

Camping Food CalculatorFood weight and calories to pack per person per day and for the whole tripSports & Training

Camping Water CalculatorLitres or gallons of water per person per day for drinking, cooking and washing upSports & Training

Sleeping Bag Temperature Rating CheckerIs your bag warm enough? Overnight low vs Comfort and Limit ratings with a safety marginSports & Training

Fishing Knot Strength and Drag Setting CalculatorWorking line strength after the knot and the drag setting to use, from line test and knot typeSports & Training

Sunset Hike CalculatorSunset, dusk, latest start and turnaround time so you finish a hike before darkSports & Training

Backpacking Stove Fuel CalculatorGrams of fuel and number of canisters from people, days, litres boiled and conditionsSports & Training

Lightning Distance CalculatorFlash-to-bang seconds to miles and kilometres, storm approach speed and the 30-30 ruleSports & Training

Ski Length CalculatorWhat size skis by height and ability, in cm, from a retailer size chartSports & Training

Snowboard Size CalculatorSnowboard length range by weight and height, with waist width by boot sizeSports & Training

Ski Boot Mondopoint ConverterUS shoe size or foot length to Mondopoint ski boot size, and backSports & Training

Ski Pole Length CalculatorSki pole size in inches and cm from your height, using a retailer chartSports & Training

Cross-Country Ski Length CalculatorClassic, skate and touring ski length by weight and heightSports & Training

Snowshoe Size CalculatorSnowshoe length by total weight with pack, and snow conditionsSports & Training

Avalanche Slope Angle CalculatorSlope angle from rise over run, percent or degrees, against the 30 to 45 degree avalanche rangeSports & Training

Roof Snow Load CalculatorSnow weight per square foot from depth, moisture and ice, against a design loadSports & Training

Ski Vertical CalculatorVertical feet and metres skied per day or trip from runs and drop, and runs for a goalSports & Training

Carbs Per Hour Calculator for Marathons and Long RacesCarbs per hour for a marathon or long race by finish time, from IOC consensus researchSports & Training

Gels Needed for a Half Marathon or Marathon CalculatorHow many gels to carry for a half marathon, marathon or long ride, and how far apart to take themSports & Training

Race Day Fueling Plan CalculatorA timed race-day plan of carbohydrate, fluid and gels at each stop from your finish time and targetsSports & Training

Fluid Intake Per Hour Calculator for Running and EnduranceFluid per hour from your sweat rate to keep body mass loss within 2%, against the 450 to 750 mL/h race rangeSports & Training

Electrolyte Drink Mix Calculator for EnduranceScoops of powder and grams of salt for a sports-drink bottle at your carbohydrate percent and sodium targetSports & Training

Carb Loading Calculator for Marathon and Endurance EventsDaily carbohydrate grams for one to three days before a long event at 8 to 10 g per kg, from the ISSN standSports & Training

Post-Race Rehydration and Recovery Carbs CalculatorFluid at 150% of body mass lost and carbs at 1.2 g/kg/h for a short recovery windowSports & Training

Race Day Caffeine Calculator: mg per kg and TimingCaffeine from coffee and gels in mg per kg against IOC and ISSN ranges, with the 60-minute pre-race timeSports & Training

Hockey Stick Size Chart by HeightBauer stick length and flex by height and weight, with overlapping sizes shownSports & Training

Hockey Skate Size ConverterShoe size or foot length to a Bauer skate size, youth to seniorSports & Training

Goalie Pad Size CalculatorHockey goalie leg pad size from ankle-to-knee length, youth to seniorSports & Training

Kids Bike Size by Height CalculatorWheel size from a child’s height and inseam, from the Trek size chartSports & Training

Soccer Ball Size by Age CalculatorSize 3, 4 or 5 soccer ball by age, with circumference and weightSports & Training

Youth Baseball Bat Size ChartBat length by age, or by height and weight, from the Rawlings chartsSports & Training

Bat Drop Weight CalculatorBat weight from length and drop, with BBCOR and USABat limit checksSports & Training

Baseball and Softball Glove SizeGlove size range in inches by level and position, from the Rawlings guideSports & Training

Field Hockey Stick Length CalculatorField hockey stick length in inches by player height, from a manufacturer guideSports & Training

Towing Capacity CalculatorHeaviest trailer you can tow from GCWR, loaded truck weight and tow rating, with a margin checkRV, Trailer & Boating

Truck Payload CalculatorPayload rating from GVWR and curb weight, less passengers, cargo, accessories and tongue weightRV, Trailer & Boating

GVWR, GCWR and Axle Weight Check CalculatorScale readings checked against front and rear GAWR, GVWR and GCWR, with the margin on eachRV, Trailer & Boating

Hitch Class ChooserMinimum hitch class (I to V) from loaded trailer weight, with tongue weight and tow rating checksRV, Trailer & Boating

Trailer Cargo Placement CalculatorNew tongue weight from a load's position ahead of or behind the axle, and where to put it for a target percentageRV, Trailer & Boating

Boat and Trailer Weight CalculatorLoaded boat and trailer towing weight from dry weight, engine, fuel, water and gear, against trailer GVWR and tow ratingRV, Trailer & Boating

Trailer Tongue Weight CalculatorTongue weight target, percent check and tow vehicle payload used, for a loaded trailerRV, Trailer & Boating

Trailer Payload CalculatorCargo capacity from GVWR and unloaded weight, less water, propane and gearRV, Trailer & Boating

Trailer Tire Load CalculatorAverage load per trailer tire after tongue weight, against the sidewall ratingRV, Trailer & Boating

RV Battery Runtime CalculatorHours and days of runtime from amp-hours, depth of discharge, load and inverter efficiencyRV, Trailer & Boating

RV Fresh and Grey Tank Days CalculatorDays until the fresh tank empties and the grey tank fills, from your own daily useRV, Trailer & Boating

Camper Leveling Blocks CalculatorLift height and block layers to level a camper from its tilt angle and wheel spacingRV, Trailer & Boating

Boat Fuel Burn and Range CalculatorRange, endurance, miles per gallon and cost per mile from tank size, burn and speedRV, Trailer & Boating

Anchor Scope and Rode Length CalculatorRode length to let out for your depth, bow height, tide and scope ratio, with swing radiusRV, Trailer & Boating

Hull Speed CalculatorDisplacement hull speed in knots, mph and km/h from waterline length, with speed/length ratioRV, Trailer & Boating

Marina Slip Cost CalculatorSlip cost per month, season or night from a per-foot rate, plus fees and taxRV, Trailer & Boating

Pressure Altitude CalculatorPressure altitude from field elevation or indicated altitude and the altimeter settingAviation

True Airspeed CalculatorTrue airspeed and Mach number from calibrated airspeed, pressure altitude and temperatureAviation

Crosswind Component CalculatorCrosswind and headwind or tailwind components from wind direction, speed, gusts and runway numberAviation

Wind Correction Angle and Ground Speed CalculatorWind correction angle, true heading and ground speed from course, true airspeed and windAviation

Fuel Endurance and Range CalculatorEndurance, range and trip fuel from fuel on board, burn rate and ground speed, with a 30 or 45 minute reserveAviation

Top of Descent CalculatorDistance to start descending and descent rate for a 3 degree path, with the divide-by-300 rule of thumbAviation

Flight Time CalculatorFlight time, distance or ground speed from the other two, in nautical miles, miles or km and knots, mph or km/hAviation

Weight and Balance CalculatorTotal weight, moment and center of gravity from the weight and arm of each item, checked against your limitsAviation

Flight Cost Per Hour CalculatorOwning cost per flight hour from fixed yearly costs, fuel and hourly costs, and the break-even against rentingAviation

Solar Panel Annual Yield CalculatorEstimate yearly kWh from system kW, sun hours and lossesHome Energy

Solar Payback CalculatorModel payback from production, self-use and export creditHome Energy

EV Home Charger PaybackMonths to recover charger cost and yearly saving vs gasHome Energy

Appliance Electricity CostTurn watts and run time into monthly and annual costHome Energy

Battery Backup RuntimeEstimate usable AC runtime after inverter lossesHome Energy

Generator Load & Surge SizingCheck continuous and starting-watt requirementsHome Energy

Water-Heater RecoveryEstimate tank recovery time from gallons and temperature riseHome Energy

Tank Water Heater Size CalculatorPeak-hour hot water demand to match against a first hour ratingHome Energy

Tankless Water Heater GPM CalculatorHot water flow, Btu/hr and amps from fixtures and temperature riseHome Energy

Dripping Faucet Cost CalculatorGallons and cost per month and year from drips per minuteHome Energy

Toilet Leak Cost CalculatorGallons and cost of a running toilet after a dye testHome Energy

Water Bill CalculatorEstimate a bill from your tier rates, sewer and fixed chargesHome Energy

Low-Flow Showerhead PaybackYearly water and heating savings and payback timeHome Energy

Cost Per Flush and Toilet PaybackCost per flush, gallons saved and payback of a new toiletHome Energy

Hose and Sprinkler Water CostCost per watering and per season from a bucket flow testHome Energy

Generator Fuel Needed CalculatorLitres of gasoline, diesel or propane a generator needs for an outage, with jerry cans and tank hoursHome Energy

Power Bank Phone Charges CalculatorHow many full phone charges a power bank really gives, and how many days it lasts in an outageHome Energy

Emergency Radio and Flashlight Battery CalculatorHow many AA or AAA cells to store for 72 hours from device draw and battery capacityHome Energy

Room AC BTU SizingSize a room air conditioner from floor area with ENERGY STAR adjustmentsHome Energy

Heat Pump Savings CalculatorCompare annual heating cost and payback using HSPF2 or COPHome Energy

Heating Cost ComparisonCost per GJ and kWh of heat: gas, propane, oil, electric, heat pump, woodHome Energy

ENERGY STAR Certified LookupCheck a brand or model against the official certified listHome Energy

EV Charging Time CalculatorHours to charge from any start level to a target at your charger kWHome Energy

EV Cost Per Mile CalculatorCost per mile, km, full charge and month from your kWh priceHome Energy

EV Charger Amps and Breaker SizeCharger kW and the 125% circuit protection rating, planning aid onlyHome Energy

Level 1 vs Level 2 ChargingOvernight gain on a 120 V cord versus a 240 V chargerHome Energy

EV Winter Range Loss CalculatorCold-weather range from Recurrent and AAA test resultsHome Energy

DC Fast Charging Cost CalculatorPer-kWh vs per-minute pricing and break-even charging powerHome Energy

MPGe ConverterMPGe, kWh per 100 miles, miles per kWh and Wh per kmHome Energy

EV Battery Degradation CalculatorCapacity and range after years at Geotab study loss ratesHome Energy

EV Road Trip Charging CalculatorEnergy, charging stops, time and cost for a long driveHome Energy

CFM and Air Changes per Hour CalculatorFind the CFM needed for a room from its volume and a target air changes per hour, or the ACH a fan deliversHome Energy

Bathroom Exhaust Fan Size CalculatorSize a bathroom exhaust fan in CFM with the HVI rule: 1 CFM per square foot up to 100 sq ft, or 50 CFM per fixture above thatHome Energy

Round Duct Size CalculatorFind the round duct diameter for a given CFM and air velocity, rounded up to the next whole inch, with the resulting velocityHome Energy

Watts to Amps CalculatorConvert watts to amps, amps to watts, or find volts from watts and amps with P = V x IHome Energy

Conduit Fill CalculatorFind the smallest EMT, IMC, RMC or PVC conduit for your THHN wires.Home Energy

Electrical Box Fill CalculatorCheck whether a switch, outlet or junction box is big enough.Home Energy

Breaker Size CalculatorWhat size circuit breaker do you need for a load? Enter amps or watts, add the 125% continuous-load margin and get the next standard breaker size.Home Energy

Lighting Circuit Capacity CalculatorFind how many LED or incandescent lights fit on a 15 A or 20 A lighting circuit.Home Energy

kW to Amps Calculator (Single and Three Phase)Convert kW to amps or amps to kW for single-phase and balanced three-phase power, with power factor.Home Energy

Home Electrical Service Load CalculatorEstimate the electrical service size for a house with the NEC 220.82 optional method: 3 VA per sq ft, appliances, 10 kVA at 100% then 40%, plus heating or A/C.Home Energy

Ohm's Law CalculatorEnter any two of voltage, current, resistance or power and get the other two with Ohm's law and the power formulasHome Energy

Circuit Breaker Watts Calculator (80% Rule)How many watts can a 15 or 20 amp breaker carry? Applies the 80% rule for loads that run 3 hours or more and checks a load you enterHome Energy

Extension Cord Gauge CalculatorFind the minimum extension cord wire gauge for a load in amps (or watts) and cord length up to 150 ft, from a published university EHS factsheet tableHome Energy

Space Heater Cost per Hour CalculatorWork out what an electric space heater costs per hour, per day and over any number of days from its watts, your electricity rate and how much of the time it is actually onHome Energy

Ceiling Fan Size CalculatorChoose a ceiling fan blade span from your room's floor area using ENERGY STAR's size guide, plus its mounting height and wall clearance adviceHome Energy

Van Insulation R-Value and Thickness CalculatorThickness for a target R-value, or the R-value of a thickness, by materialHome Energy

Van Battery Bank Size Calculator (Wh and Ah)Daily loads to battery watt-hours, amp-hours and runtimeHome Energy

Van Solar Panel Size CalculatorArray watts and panel count from daily Wh and peak sun hoursHome Energy

Solar Panel Battery Charge Time CalculatorFull-sun hours and days to charge a battery from solarHome Energy

Van Inverter Size CalculatorRunning and surge watts, headroom and battery-side DC ampsHome Energy

Van Ventilation Fan CFM CalculatorFan CFM and m3/h from interior volume and air changes per hourHome Energy

Van Payload and Weight Budget CalculatorGVWR minus curb weight, then people, water, batteries and build weightHome Energy

Van Conversion Build Cost CalculatorTotal your van build by line item with contingency and budgetHome Energy

Air Purifier Size Calculator: CADR Needed for Your Room Find the minimum air purifier CADR in CFM for a room from floor area and ceiling height, using the EPA and... Home Energy

Appliance Cost of Ownership Per Year Calculator Appliance cost of ownership per year: purchase and install price, minus resale value, plus repairs and yearly... Home Energy

CADR to ACH Calculator: Air Changes per Hour from an Air Purifier Convert an air purifier CADR (CFM or m3/h) into air changes per hour for a room, see minutes per change, and... Home Energy

Dehumidifier Size Calculator: Pints per Day by Area and Dampness Find the dehumidifier capacity in pints per day (and litres) for a basement or room from floor area and... Home Energy

Dryer Cost Per Load Calculator Dryer cost per load and per hour: electric watts x hours x your kWh price, or gas Btu per hour x hours x your... Home Energy

How Often to Change a Furnace Filter: Interval by Thickness, Pets and Occupants Work out how many days between furnace or HVAC filter changes from filter thickness, pets, occupants, allergies... Home Energy

Furnace Filter Size Converter: Nominal vs Actual Size Convert a measured air filter to the nominal size to order (for example 15.75 x 24.75 x 0.75 is 16x25x1), or a... Home Energy

Gas vs Electric Dryer Cost Calculator Gas vs electric dryer running cost: electric kWh per load against gas therms or GJ per load plus motor... Home Energy

Humidifier Size Calculator: Output Needed by Room Volume and Target RH Estimate the humidifier output in litres, gallons or pints per day needed to hold a target indoor relative... Home Energy

LED Bulb Payback Calculator LED bulb payback: watts saved times hours per day times your electricity price, plus avoided old-bulb... Home Energy

Old vs ENERGY STAR Appliance Payback Calculator Old vs ENERGY STAR appliance payback: yearly kWh saved times your electricity price against the new price less... Home Energy

Radon Converter: pCi/L to Bq/m3 (EPA 4 pCi/L and Health Canada 200 Bq/m3) Convert a radon test result between pCi/L and Bq/m3 (1 pCi/L = 37 Bq/m3) and see it against the US EPA 4 pCi/L... Home Energy

Refrigerator Cost to Run Calculator Refrigerator cost to run per year and per month: kWh per year from the EnergyGuide label, or nameplate watts... Home Energy

Repair or Replace Appliance Calculator Repair or replace an appliance: repair quote as a share of replacement price (the 50 percent rule of thumb),... Home Energy

Smoke and CO Alarm Replacement Date Calculator Work out the replace-by date for a smoke alarm (10 years from manufacture), a CO alarm (the life printed on it)... Home Energy

Standby Power Cost Calculator Standby (vampire) power cost: standby watts times quantity times hours on standby per day, times 365, times... Home Energy

Window Condensation Calculator: Indoor RH vs Dew Point Estimate whether water will condense on a cold window or wall from indoor temperature, relative humidity and... Home Energy

Off-Grid Solar System Size CalculatorPanels, battery and inverter for an off-grid system from daily kWhHome Energy

Off-Grid Battery Bank Size CalculatorkWh, amp-hours and series and parallel batteries for days of autonomyHome Energy

Off-Grid Load CalculatorDaily watt-hours, peak load and inverter size from an appliance listHome Energy

Solar Panels in Series Calculator Cold-Weather Voc CalculatorCold-weather Voc and the most panels per string for your controllerHome Energy

MPPT Charge Controller Size CalculatorCharge controller amps from array watts and battery voltageHome Energy

Wind Turbine Power Output CalculatorWatts from rotor diameter, wind speed and power coefficient with the Betz limitHome Energy

Small Wind Turbine kWh Per Year CalculatorYearly kWh from rotor diameter and average wind speed, DOE formulaHome Energy

Wind Speed at Hub Height CalculatorScale wind speed to tower height with the shear power lawHome Energy

DuctulatorRound duct diameter from CFM and friction rate, or the friction and velocity of a size you chooseHome Energy

Round to Rectangular Duct CalculatorConvert a round duct to a rectangular size at equal friction for a side you choose, or the reverseHome Energy

Duct Velocity and Friction Loss CalculatorAir velocity in ft/min and friction loss per 100 ft for a round or rectangular duct at a given CFMHome Energy

CFM per Room CalculatorRoom CFM from its Btu/h load and temperature difference, or a split of total system airflow by room loadHome Energy

Duct Friction Rate CalculatorDesign friction rate in inches of water per 100 ft from blower static pressure, component drops and effective lengthHome Energy

Supply Register Count CalculatorNumber of supply registers for a room from its CFM and the CFM one register delivers, with the air speed through the openingHome Energy

CFM per Ton CalculatorSystem airflow from cooling tons or Btu/h at 350, 400 and 450 CFM per ton, or check a measured airflowHome Energy

USDA Food Nutrition LookupSearch foods and scale calories, macros, fiber and sodium to your portionFood & Nutrition

Recipe Nutrition CalculatorAdd weighted ingredients and calculate total and per-serving nutritionFood & Nutrition

Nutrition Label GeneratorGenerate a simple printable label from a USDA food and serving sizeFood & Nutrition

Protein & Calorie CalculatorCompare protein, calories and protein per 100 calories across foodsFood & Nutrition

Coffee Brew Ratio CalculatorSolve coffee, water and brew ratio in either directionFood & Nutrition

Cocktail ABV & Dilution CalculatorFinal ABV, volume and standard drinks after dilutionFood & Nutrition

Baker's Percentage & HydrationCalculate flour-based percentages and total dough hydrationFood & Nutrition

Sourdough Starter FeedingScale a starter seed-to-flour-to-water feeding ratioFood & Nutrition

Pizza Dough Hydration & BallsSolve flour, water and ingredients from dough-ball targetsFood & Nutrition

Cups to Grams Baking ConverterConvert cups, tablespoons and teaspoons to grams for 20 baking ingredientsFood & Nutrition

Yeast Conversion CalculatorFresh, active dry and instant yeast equivalents by weight, with the water to addFood & Nutrition

Sourdough Hydration CalculatorTrue sourdough hydration with the starter counted, plus water for a target hydrationFood & Nutrition

Baking Pan Size Converter and Substitution CalculatorCompare square, rectangle, round and loaf pans and scale the recipe for the pan you haveFood & Nutrition

Brine Ratio CalculatorSalt weight for a brine of any percent, per litre, with table-salt spoons and optional sugarFood & Nutrition

Curing Salt CalculatorCure #1 grams per weight of meat for a target nitrite ppm, checked against the Health Canada limitsFood & Nutrition

Food Safe Internal Temperature ChartHealth Canada safe internal cooking temperatures in C and F, with a thermometer reading checkFood & Nutrition

How Long Do Leftovers Last? Fridge and Freezer CalculatorFridge and freezer storage limits for leftovers and raw food from Health Canada, with a use-by dateFood & Nutrition

Smoking Time Per Pound CalculatorSmoke time by cut, weight and smoker temperature, with the stall note and USDA safe temperaturesFood & Nutrition

BBQ Cook Start Time CalculatorWork back from the time you want to eat to when to light the smokerFood & Nutrition

Smoker Fuel Usage CalculatorPounds of pellets or charcoal for a long cook by temperature and hoursFood & Nutrition

Meat Rest and Carryover CalculatorWhen to pull meat off the heat so carryover cooking lands on the target, with a USDA checkFood & Nutrition

Dry Brine Salt CalculatorGrams of salt for a dry brine by meat weight, and how long to rest itFood & Nutrition

Cooked Meat Yield CalculatorCooked weight loss and the raw weight to buy for your cooked servingsFood & Nutrition

BBQ Rub and Sauce ScalerScale a rub or sauce to a bigger batch or to your meat weightFood & Nutrition

Cookout Food Out Time CalculatorThe 2 hour rule (1 hour above 90 F) for food at a cookout, from USDA FSISFood & Nutrition

Emergency Water Storage CalculatorLitres and gallons of water to store by household size and days, from Health Canada and Ready.govFood & Nutrition

Emergency Food Supply CalculatorDays your emergency food lasts from the calories you have stored, against the 72-hour minimumFood & Nutrition

Power Outage Food Safety CalculatorTime left for fridge and freezer food in a blackout, from Health Canada limitsFood & Nutrition

Emergency Supplies Replacement Date CalculatorWhen to swap stored water, emergency food and review the kit, with days leftFood & Nutrition

Meal Prep Portion CalculatorSplit a cooked batch into equal containers by weight, with calories and protein per portionFood & Nutrition

Cost per Serving CalculatorRecipe cost per serving from your own package prices and the amounts usedFood & Nutrition

Cost per Gram of Protein CalculatorCompare up to three products by cost per gram of protein and protein per dollarFood & Nutrition

Macros from Calories CalculatorGrams of carbohydrate, protein and fat from calories and a percentage split, against adult DRI rangesFood & Nutrition

Sodium to Salt ConverterConvert mg of sodium to grams of salt (x 2.5) with percent of the 2,300 mg Daily ValueFood & Nutrition

Sugar Grams to Teaspoons ConverterTurn label sugars in grams into teaspoons and percent of the 100 g Daily ValueFood & Nutrition

Nutrition per Serving CalculatorPer 100 g label values scaled to your serving, with percent Daily Value for sodium, sugars, fat and fibreFood & Nutrition

Cooked Rice to Dry Rice CalculatorDry and cooked weight for rice, pasta, quinoa and couscous, from USDA water contentsFood & Nutrition

Raw to Cooked Meat Weight ConverterCooked weight from raw by cut and method, from USDA cooking yieldsFood & Nutrition

Cooked Meat Cost per Pound CalculatorReal cost per cooked pound, 100 g and serving after the meat shrinksFood & Nutrition

Rice and Pasta per Person CalculatorDry rice or pasta to cook for a group, from the Health Canada reference amount or your servingFood & Nutrition

Meal Prep Grocery Quantity CalculatorRaw meat and dry grains or beans to buy for your cooked meal prep servingsFood & Nutrition

Dried Beans to Cooked Beans CalculatorDry and cooked weight for chickpeas, black beans, lentils and moreFood & Nutrition

Batch Cocktail CalculatorScale a cocktail recipe to a batch with dilution water, final ABV, bottles needed and standard drinksFood & Nutrition

Cocktail Cost CalculatorCost per cocktail, pour cost percent, profit and the menu price for a target pour costFood & Nutrition

Keg Pours CalculatorHow many beers are in a keg: pours, cost per pour, profit and standard drinks for US and Ontario kegsFood & Nutrition

Beer ABV CalculatorAlcohol by volume from original and final gravity with two formulas, plus the FG needed for a target ABVFood & Nutrition

Simple Syrup CalculatorSugar and water for simple syrup at 1:1, 1.5:1 or 2:1 by volume or weight, with total weight and sugar percentFood & Nutrition

Coffee and Tea Cost Per Cup CalculatorCost per cup from beans, loose tea, pods or tea bags, with daily and yearly cost and savings against a cafeFood & Nutrition

Bottled Water vs Tap Cost CalculatorCompare bottled and tap water cost per litre and per year from bottle price, size and your tap rateFood & Nutrition

Home Bar Starter Budget CalculatorSetup cost for spirits, liqueurs, tools and glassware, yearly restock and cost per drink at homeFood & Nutrition

Cold Brew Concentrate Dilution CalculatorWater or milk to add to cold brew concentrate for a strength you choose, per batch and per cupFood & Nutrition

Mead Honey CalculatorPounds and kilograms of honey for a mead batch from target ABV or starting gravity, with the GotMead 3 oz per percent rule as a checkFood & Nutrition

Brix to Potential Alcohol CalculatorPotential ABV from a Brix or specific gravity reading of wine or mead must, with Brix and gravity converted both waysFood & Nutrition

Chaptalization Sugar CalculatorGrams and pounds of sugar to add to must to reach a target Brix or specific gravity, with the potential ABV before and afterFood & Nutrition

Mead Nutrient Schedule CalculatorGrams of yeast nutrient per feeding and the gravity at each sugar break for a staggered mead nutrient scheduleFood & Nutrition

Potassium Metabisulfite (SO2) Dosing CalculatorFree SO2 target and grams of potassium metabisulfite for a wine or mead from pH and molecular SO2, including what is already in the batchFood & Nutrition

Wine and Mead Back-Sweetening CalculatorSugar or honey to back-sweeten wine or mead to a target gravity, with the potassium sorbate range per gallonFood & Nutrition

Wine Bottle Count and Priming Sugar CalculatorHow many 750 mL bottles a wine or mead batch fills, with lees loss and the priming sugar for sparkling meadFood & Nutrition

Mead and Wine Batch ScalerScale a mead or wine recipe between batch sizes such as 1 to 5 or 6 gallons with a recalculated ingredient listFood & Nutrition

Hydrometer Temperature Correction CalculatorCorrected specific gravity from a hydrometer reading, the sample temperature and the hydrometer calibration temperatureFood & Nutrition

Convection Oven Temperature ConverterConvert a recipe to a convection or fan oven: 25°F lower, with Celsius, fan and gas markFood & Nutrition

High Altitude Baking Adjustments CalculatorLeavener, sugar, liquid, flour and oven changes by elevation from 3,000 ftFood & Nutrition

Egg Size Conversion Calculator for BakingSwap egg sizes by USDA weight, turn eggs into tablespoons and find baking replacementsFood & Nutrition

Baking Powder, Buttermilk and Flour Substitution CalculatorScaled swaps for baking powder, buttermilk, self-rising flour, cake flour and moreFood & Nutrition

Butter Conversion CalculatorConvert butter between sticks, cups, tablespoons, grams and ounces, with fat swapsFood & Nutrition

Honey to Sugar Substitution CalculatorSwap sugar, honey, corn syrup and brown sugar with the liquid and baking soda changesFood & Nutrition

Pan Size Recipe ScalerScale every ingredient when you change pans, including several pans and egg fractionsFood & Nutrition

Sauerkraut Salt CalculatorGrams of salt for your cabbage at 1.5% to 2.5%, from University of Vermont Extension and NCHFPFood & Nutrition

Brine Percentage CalculatorSalt percent of a brine from grams and water, or fix a brine to a targetFood & Nutrition

Pickle Brine Ratio CalculatorVinegar, water, salt and sugar for the tested NCHFP dill pickle brine, plus a ratio checkFood & Nutrition

Fermentation Time by TemperatureHow long sauerkraut and fermented pickles take at your room temperature, with a ready-by dateFood & Nutrition

Pickle and Sauerkraut Canning TimeWater-bath processing minutes for tested NCHFP recipes by pack, jar size and elevationFood & Nutrition

Pickling Jar Yield CalculatorHow many jars from your pounds of cucumbers, cabbage, beans or beets, with brine for whole batchesFood & Nutrition

Centrelink Payment Dates Planner Project fortnightly dates from your confirmed payment date Australia

Age Pension Payment Dates Published 2026 four-weekly Services Australia calendar Australia

ANZSIC Code Lookup Search the full ABS industry classification hierarchy Australia

Australia Post Cubic Weight Calculator Estimate cubic and chargeable parcel weight Australia

Australian Take-Home Pay CalculatorEstimate FY2026–27 tax, Medicare and HELP deductionsAustralia

Superannuation Guarantee CalculatorApply the current 12% employer super rateAustralia

HELP / HECS Repayment CalculatorEstimate compulsory repayment from repayment incomeAustralia

Medicare Levy CalculatorEstimate the single-person levy and phase-inAustralia

Australia Skilled Migration Points Calculator 189, 190 and 491 points from the Home Affairs points table Australia

English Test Points for Australia Converter IELTS, PTE, TOEFL, OET scores to Competent, Proficient or Superior Australia

PTE Points for Australia Calculator PTE Academic scores to Australian skilled migration points Australia

Skilled Visa Age Points Calculator Age points on invitation day and the birthday they change Australia

Skilled Employment Points Calculator Overseas and Australian work experience points, 20 point cap Australia

Skilled Visa Application Charge Calculator 189, 190 and 491 visa application charge for your family Australia

SkillSelect Invitation Rounds Tracker Round sizes and minimum score invited by occupation Australia

AHPRA Practitioner SearchSearch the Ahpra register by name or number and handle a missing nameAustralia

Tax Practitioners Board RegisterCheck a tax or BAS agent and read conditions and sanctionsAustralia

ASIC Financial Adviser CheckAdviser, licence holder and ban checks on the ASIC registersAustralia

Building Licence Check by StateOpen the NSW, Queensland or Victoria builder registerAustralia

NAICS Canada Code Lookup Search the 2022 Statistics Canada industry codes with parent chain Canadian

ROR ID Validator Normalize a ror.org URL or ID and check its format and ISO 7064 checksum Canadian

ROE Deadline Calculator Last day to issue a Record of Employment Canadian

Plus Code Converter Convert a Plus Code (Open Location Code) to lat/long and back, or recover a short code from a reference point Canadian

Patent Kind Code Lookup Look up A1, B1, B2, S, E and other patent kind codes, or parse a number like US 10,123,456 B2 Canadian

MBI Number Format Check Check a Medicare Beneficiary Identifier's 11-character format Canadian

ISWC Validator Check an ISWC's format and ISO 15707 check digit (checksum only) Canadian

ISNI Number Validator Check an ISNI's 16 characters and ISO 7064 MOD 11-2 check character Canadian

ISAN Number Validator Check an ISAN's format and its two ISO 7064 check characters Canadian

Hull Identification Number Validator Check a boat's 12-character HIN against 33 CFR 181.25 and read its fields Canadian

GS1 Application Identifier Lookup Look up a GS1 AI or parse a GS1-128 element string into its fields Canadian

EIC Code Validator Check a 16-character Energy Identification Code's format and mod-37 check character Canadian

CAS Registry Number Validator Check a CAS RN's format and recompute its check digit (format only) Canadian

UK VAT Number Checker Check the format of a UK VAT number: 9 digits, GB or XI prefix (format only) Canadian

Swiss UID (CHE) Number Validator Check a Swiss UID against the eCH-0097 modulo 11 check digit Canadian

Norwegian Organisasjonsnummer Validator Check a 9-digit Norwegian organisation number and its modulus 11 check digit Canadian

ACN Validator (Australia) Check an Australian Company Number against ASIC's check digit method Canadian

NHI Number Validator (New Zealand) Check an NZ NHI number: old format (mod 11) and new format (mod 23) Canadian

HPI Number Validator (New Zealand) Check an NZ HPI CPN, organisation or facility identifier (mod 11) Canadian

IHI Number Validator (Australia) Check a 16-digit IHI, HPI-I or HPI-O: 8003 6 prefix, type digit, Luhn Canadian

ARBN Validator (Australia) Check an ARBN or ARSN with ASIC's check digit method Canadian

ACN to ABN Converter (Australia) Turn an ACN, ARBN or ARSN into the ABN that ends in it, or split an ABN Canadian

NZBN Validator (New Zealand) Check a 13-digit NZBN and its GS1 modulo 10 check digit Canadian

Singapore UEN Format Checker Test a Singapore UEN against the three ACRA formats (format only) Canadian

GST/HST Number Format Checker Check the format of a GST/HST account number: BN + RT + 4 digits (format only) Canadian

DOI Checker Check a DOI's syntax, accept doi.org links, and get a normalized DOI and link (does not confirm it resolves) Canadian

Canada Trademark Renewal CalculatorFind a Canadian trademark's 10-year expiry and renewal window from its registration dateCanadian

Patent Expiry Calculator CanadaWork out a Canadian patent's 20-year expiry from its filing dateCanadian

Marginal tax rate calculator Canada 2026Combined federal and provincial marginal and average rate for any incomeCanadian

Ontario marginal tax rate 2026Rates by income and tax on $100,000, with the surtaxCanadian

BC marginal tax rate 2026Rates by income and tax on $100,000 in British ColumbiaCanadian

Alberta marginal tax rate 2026Rates by income and tax on $100,000 in AlbertaCanadian

Quebec marginal tax rate 2026Rates by income with the 16.5% federal abatementCanadian

Saskatchewan marginal tax rate 2026Rates by income and tax on $100,000 in SaskatchewanCanadian

Nova Scotia marginal tax rate 2026Rates by income and tax on $100,000 in Nova ScotiaCanadian

New Brunswick marginal tax rate 2026Rates by income and tax on $100,000 in New BrunswickCanadian

Newfoundland and Labrador marginal tax rate 2026Rates by income and tax on $100,000 in Newfoundland and LabradorCanadian

Copyright Duration Calculator (Canada) Find the public domain date from an author's death year: life plus 70 years Canadian

Postal Code to Province CheckerSee which province a Canadian postal code starts in and catch address mismatchesCanadian

Canada Personal Tax Deadline CalendarBuild CRA filing and payment dates, including self-employed deadlinesCanadian

GST/HST Deadline CalendarGenerate CRA monthly, quarterly or annual filing and payment datesCanadian

RRSP Deadline Countdown RRSP deadline 2027 date, days left and CRA contribution periods Canadian

Tax Filing Deadline Countdown Days left to file and pay Canadian taxes, April 30 and June 15 Canadian

Late-Filing Penalty Calculator Estimate the CRA 5% plus 1% a month late-filing penalty Canadian

CRA Interest on Taxes Owing Daily-compounded CRA arrears interest at the quarterly prescribed rate Canadian

EI Premium Calculator EI premium rates 2027: 1.64% up to $70,800, employee and employer share Canadian

Canada Benefit Payment Dates 2026 CCB, CPP, OAS, GIS, CDB and GST/HST payment calendar Canadian

CCB Payment Dates 2026Monthly Canada Child Benefit issue dates from CRACanadian

Ontario Works Payment Dates 2026Published monthly payment dates and weekend adjustmentsCanadian

Consumer proposal vs bankruptcy calculatorSide-by-side payments, discharge time and trustee feesCanadian

Bankruptcy surplus income calculatorOSB 2026 standards by family size and the 50% paymentCanadian

Consumer proposal cost estimatorAdministrator fees under the General RulesCanadian

Bankruptcy discharge timeline9, 21, 24 or 36 months under BIA s. 168.1Canadian

Licensed Insolvency Trustee lookup guideCheck a trustee on the official OSB registerCanadian

Proposal payment affordability calculatorWhat a monthly budget delivers to creditorsCanadian

Debt-to-income and insolvency threshold checkThe $250,000 limit and insolvency testsCanadian

CPP, OAS and GIS Payment Dates 2026Service Canada pension and income supplement scheduleCanadian

Canada Disability Benefit Payment DatesPublished 2026 monthly CDB issue datesCanadian

GST/HST and CGEB Payment DatesQuarterly CRA credit and groceries benefit scheduleCanadian

Bank of Canada Rate Calendar 2026–2027 policy announcement dates and countdown Canadian

Canada Post Dimensional Weight Compare volumetric and actual parcel weight by service Canadian

Severance Pay Calculator Ontario ESA termination pay, severance pay and notice Canadian

EI Benefits Calculator Employment Insurance weekly rate and weeks payable Canadian

Canadian GST/HST Calculator Calculate Canadian sales tax (GST, HST, PST, QST) for every Canadian

Reverse HST Calculator Ontario Remove tax from an Ontario total Canadian

Reverse HST Calculator Nova Scotia Remove tax from a Nova Scotia total Canadian

Reverse HST Calculator New Brunswick Remove tax from a New Brunswick total Canadian

Reverse HST Calculator Newfoundland and Labrador Remove tax from a Newfoundland and Labrador total Canadian

Reverse HST Calculator PEI Remove tax from a Prince Edward Island total Canadian

Reverse GST + PST Calculator BC Remove tax from a British Columbia total Canadian

Reverse GST + RST Calculator Manitoba Remove tax from a Manitoba total Canadian

Reverse GST + PST Calculator Saskatchewan Remove tax from a Saskatchewan total Canadian

Reverse GST + QST Calculator Quebec Remove tax from a Quebec total Canadian

Reverse GST Calculator Alberta Remove tax from an Alberta total Canadian

Canadian Postal Code Lookup Canadian postal code lookup and validator Canadian

Canadian SIN Validator Canadian Social Insurance Number (SIN) validator Canadian

SIN Number Generator Luhn-valid test SINs (leading 0) for software testing Canadian

SIN Number Format Guide Nine digits, grouping and what the first digit means Canadian

Temporary SIN (9xx) Checker Check a SIN that starts with 9 and what expiry means Canadian

SIN vs BN vs ITN Compare the SIN, Business Number and Individual Tax Number Canadian

Employer SIN Checklist 3-day and 6-day deadlines and steps for new-hire SINs Canadian

How to Validate a SIN Number The Luhn check worked out step by step Canadian

SIN Privacy Guide Who can ask for your SIN and when you can say no Canadian

Canadian Phone Number Validator Check +1 NPA-NXX-XXXX format and Canadian area codes Canadian

VIN Decoder: Year, Country, Maker Code Read model year, country of origin, WMI and plant code from a VIN, offline Canadian

VIN Check-Digit Validator Validate a vehicle identification number's real ISO 3779 check digit Canadian

VIN Decoder & Recall Lookup Decode a VIN and check matching NHTSA safety recalls Vehicle safety

NHTSA Safety Ratings Lookup Official overall, frontal, side and rollover ratings by vehicle configuration Vehicle safety

NHTSA Vehicle Complaints Lookup Complaint counts by make, model, year and component Vehicle safety

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Fuel economy lookupOfficial EPA MPG, MPGe, range and charge-time recordsVehicle energy

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Annual fuel cost comparisonCompare two official vehicle records using your mileage and pricesVehicle energy

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EV charging cost & timeEstimate charging from EPA range, kWh use and charge timeVehicle energy

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Clean-vehicle credit checkScreen IRS acquisition dates and documentation checkpointsVehicle energy

Wheel offset and backspacing calculator. Convert offset (mm) to backspacing (inches) and back, from the wheel width. Calculators

Wheel offset change calculator. See how far a new wheel (and wider tire) moves toward the fender and toward the suspension. Calculators

Tire plus sizing calculator. Find tire sizes for a larger rim that keep the overall diameter close to your current tire. Calculators

Tire load index chart and calculator. Load index to kilograms and pounds, and the minimum index for a given load. Calculators

Tire speed rating chart and finder. Convert a speed symbol such as H or V to mph and km/h, or find the minimum symbol for a speed. Calculators

Tire load index and speed rating decoder. Decode the two-or-three digit number and letter on your sidewall, such as 98H. Calculators

Tire size converter, metric to inches. Metric to flat-float inches and back, with sidewall height and overall diameter. Calculators

Engine RPM at speed calculator. RPM from road speed, tire size, axle ratio and gear. Compare two tire sizes. Calculators

Re-gear ratio for a new tire size calculator. What axle ratio matches your old gearing with a taller (or shorter) tire. Calculators

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IFTA fuel tax calculatorEstimate net taxable gallons and tax by state and province, prefilled with the Q4 2026 IFTA rates.Trucking

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IFTA tax rates by stateGasoline and diesel rates for all 58 jurisdictions, in US$ per gallon and C$ per litre.Trucking

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Canadian province IFTA ratesTen provinces in C$ per litre with a litres-to-tax calculator.Trucking

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IFTA quarterly due datesApril 30, July 31, October 31 and January 31, with weekends rolled, for any year.Trucking

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IFTA penalty and interest calculatorThe greater of $50 or 10% penalty plus monthly interest on late tax.Trucking

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IRP apportioned plate fee estimatorShare of fleet miles times each full-year fee, plus IFTA vs IRP.Trucking

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Form 2290 tax calculatorHeavy highway vehicle use tax by weight and month, with the IRS due date.Trucking

FDA NDC Drug Lookup Convert 10-digit NDCs and inspect labeler, product and package data Health data

CAC Calculator: Customer Acquisition Cost FormulaCAC and paid-only CAC from spend and new customers, first-order profit after CAC and orders to recover it.

CAC Payback Period Calculator: Months to Recover CACMonths of gross profit to recover CAC, with a churn adjustment that flags when payback never happens.

LTV to CAC Ratio Calculator: Lifetime Value vs CACMargin-adjusted lifetime value, LTV:CAC ratio, lifetime profit after CAC and max CAC at a target ratio.

MER Calculator: Marketing Efficiency RatioMarketing efficiency ratio from total revenue and spend, break-even MER from margin and profit after marketing.

Blended vs Platform ROAS CalculatorPlatform ROAS, blended ROAS from real revenue and how much revenue the platforms claim beyond actual sales.

Break-Even Conversion Rate Calculator for AdsConversion rate needed for paid clicks to break even or hit a profit target, plus the max CPC at your current rate.

Ad Budget Calculator for a Target Number of OrdersAd budget, clicks, daily spend, ROAS and profit for a target number of orders from CPA or CPC and conversion rate.

Facebook Ads Break-Even Calculator: CPM, CPC, CPAMaximum CPA, CPC and CPM for break-even or a profit target from order value, margin, CTR and conversion rate.

Data Storage Unit Converter Bits, bytes, KB, MB, GB, TB and binary KiB, MiB, GiB, TiB in one table Calculators

TB to TiB Converter TB to TiB and why a 1 TB drive shows about 931 GB in Windows Calculators

Mbps to MB/s Converter Megabits to megabytes per second and back, plus Gbps, kbps and MiB/s Calculators

Download Time Calculator Download or transfer time from file size and speed in Mbps or MB/s, with an efficiency setting Calculators

Cloud Backup Upload Time Calculator Days for a first cloud backup from data size, upload Mbps and hours per day Calculators

Video File Size from Bitrate Calculator Video file size and GB per hour from video and audio bitrate and duration Calculators

Monthly Data Usage Budget Calculator Streaming hours against a monthly data cap using Netflix published GB per hour Calculators

USB, SATA and Ethernet Transfer Time Comparison Best-case copy time over USB 2.0 to USB4, SATA III and Gigabit to 10 Gigabit Ethernet Calculators

Amazon Settlement Fee MixGroup settlement charges and credits locallyCalculators

Amazon Aged Inventory SurchargeSummarize reported charges by age tierCalculators

Amazon FBA Reimbursements ReportReview cash, inventory, reasons and reversalsCalculators

Amazon Inbound Discrepancy ReconcilerCompare expected and received unitsCalculators

Amazon Return / Refund / ReimbursementMatch three reports without displaying order IDsCalculators

Amazon Dimension & Weight Fee AuditCompare Fee Preview with measured SKUsCalculators

Amazon Stranded Inventory TriagePrioritize reasons, actions and deadlinesCalculators

Amazon Remove vs Liquidate vs DiscountCompare three recovery paths with current ratesCalculators

Passport MRZ Validator Validate ICAO 9303 machine-readable-zone check digits Canadian

Bank Institution & Transit Lookup Look up a Canadian bank institution number and routing format Canadian

ISBN Check-Digit Validator Validate an ISBN-10/13's real ISO 2108 checksum and convert formats Canadian

Business Number Validator Check a CRA Business Number's shape and program identifier Canadian

ORCID iD Validator Validate an ORCID iD's real ISO 7064 MOD 11-2 check character or compute one Canadian

IPFS CID Validator Inspect a CIDv0 or CIDv1: version, codec, hash function and digest length Canadian

ISIN Validator Validate an ISIN's real ISO 6166 check digit or compute one Canadian

FIGI Validator Check a FIGI's format and OMG check digit (a match does not prove it was issued) Canadian

CUSIP Check Digit Validator Validate a CUSIP's real check digit or compute one Canadian

SEDOL Check Digit Validator Validate a SEDOL's real check digit or compute one Canadian

ISRC Validator Check an ISRC's format (ISO 3901) and decode its prefix, registrant and year digits Canadian

ISMN Validator Validate a 13-digit ISMN's real check digit or compute one Canadian

ISSN Validator Validate an ISSN's real mod-11 check character (0-9 or X) or compute one Canadian

Shipping Container Number Validator Validate an ISO 6346 container number's check digit or compute one Canadian

Vessel IMO Number Validator Validate a 7-digit vessel IMO number's check digit (checksum only) Canadian

QST/TVQ Registration Validator Check a Quebec QST/TVQ registration number's shape (Revenu Québec format) Canadian

IRCC UCI Number Format Checker Check an immigration UCI's 8 or 10-digit shape (IRCC format) Canadian

MPAC Roll Number Checker Check an Ontario property assessment roll number's 19-digit shape Canadian

NPI Number Validator Verify a US NPI's real Luhn check digit (CMS's 80840-prefix rule) Canadian

NPN Lookup Health Canada Check an 8-digit natural product number and look it up in Health Canada's LNHPD

US EIN Validator Check an EIN's format and IRS campus prefix (a match does not prove it exists) Canadian

S10 Tracking Number Checker Check a UPU 13-character postal number's format and check digit (cannot track parcels) Canadian

DEA Number Validator Verify a US DEA registration number's real weighted checksum Canadian

Ontario Health Card Number Validator Check an OHIP number's format and MOD 10 check digit (format only) Canadian

arXiv ID Validator Check an arXiv identifier's old or new format, month and digit count (format only) Canadian

FAA N-Number Format Validator Check a US aircraft registration mark against 14 CFR 47.15(b) Canadian

UK National Insurance Number Validator Check a NINO against HMRC's real prefix and suffix format rules Canadian

Australian Business Number (ABN) Validator Check an ABN's real modulus-89 check digit, published by the ABR Canadian

New Zealand IRD Number Validator Check an IRD number's real modulus-11 check digit, published by Inland Revenue Canadian

ID Number Validators Every national ID, tax number and standard identifier checker in one directory Canadian

Singapore NRIC & FIN Validator Check an NRIC or FIN's check letter and see the letter it expects Canadian

Hong Kong ID Card Validator Check a Hong Kong ID card number and its bracketed check digit Canadian

Taiwan National ID Validator Check a Taiwan ID or resident certificate number and its check digit Canadian

Finnish HETU Validator Check a Finnish personal identity code and decode the date of birth and sex Canadian

Estonian Isikukood Validator Check an Estonian personal code and decode the date of birth and sex Canadian

Bulgarian EGN Validator Check a Bulgarian EGN and decode the date of birth and sex Canadian

Irish PPS Number Validator Check a PPS number's modulus-23 check letter, including the 2013 second letter Canadian

Dutch BSN Validator Check a Dutch BSN against the elfproef (11-proef) checksum Canadian

Polish PESEL Validator Check a PESEL's real 1-3-7-9 check digit and decode date of birth and sex Canadian

Czech Rodné Číslo Validator Check a Czech birth number against the divisible-by-11 rule and decode date and sex Canadian

Slovak Rodné Číslo Validator Check a Slovak birth number against the divisible-by-11 rule and decode date and sex Canadian

Austrian SV-Nummer Validator Check an Austrian SV-Nummer check digit and birth-date field Canadian

Danish CPR Number Validator Check a Danish CPR number date, century, sex and legacy modulus 11 test Canadian

Romanian CNP Validator Check a Cod Numeric Personal's control digit, date of birth and county code Canadian

Hungarian Adóazonosító Jel Validator Check a Hungarian tax ID: starts with 8, statutory mod 11 check digit Canadian

Slovenian EMŠO Validator Check an EMŠO modulus 11 check digit and decode birth date and sex Canadian

EI Sickness Benefit Calculator Weekly rate and the real 26-week maximum entitlement Canadian

EI Caregiving Benefit Calculator Family caregiver (child/adult) and compassionate care Canadian

EI Maternity & Parental Calculator Standard 55% or extended 33% parental benefits Canadian

Used Vehicle Private Sale Tax Calculator RST/PST/QST by province, all 10 provinces Canadian

Federal Severance Pay Calculator Canada Labour Code notice and severance pay Canadian

ROE Reason Code Lookup What every Record of Employment code means Canadian

EI Benefit Repayment (Clawback) Calculator Whether you owe back part of your EI benefits Canadian

CBSA Duty & Tax Calculator Duty and tax over your personal exemption Canadian

Canada Import Landed Cost Calculator Duty, surtax, GST, brokerage and freight on an import Canadian

Dental Care Plan Eligibility Checker CDCP coverage tier by household income Canadian

Vehicle Safety Inspection Lookup Whether you need one, by province or territory Canadian

Business Incorporation Fee Lookup Federal vs every province's real government filing fee Canadian

Small Business Loan Calculator Canada Payment, term balance and all-in rate in CAD Canadian

CSBFP Calculator Limits, 2% registration fee and rate ceiling Canadian

CRA Refund Date Estimator Estimate the CRA target date from filing method Canadian

Canadian Tariff & HS Lookup Search common T2026 items and open the CBSA chapter Canadian

Federal Corporation Lookup Prepare a live Corporations Canada search Canadian

Ontario Business Registry Search Free OBR search guide, record checklist and Business Number shape check Canadian

BC Registry Business Search BC Registry and OrgBook search guide with company-number format check Canadian

Alberta Corporate Registry Search Alberta registry search guide: what registry agents search and what to ask for Canadian

Quebec REQ Enterprise Search Quebec REQ and NEQ guide with a 10-digit NEQ format check Canadian

Saskatchewan Corporate Registry Search ISC Corporate Registry search guide and registration checklist Canadian

Manitoba Companies Office Search Manitoba Companies Online search guide, File Summary notes and checklist Canadian

Nova Scotia Registry of Joint Stock Companies Search RJSC Connect search guide with a 7-digit Registry ID format check Canadian

New Brunswick Corporate Registry Search SNB Corporate Registry search guide with a Business Number shape check Canadian

Newfoundland and Labrador Registry of Companies Search NL Registry of Companies (CADO) search guide and checklist Canadian

PEI Business Registry Search PEI Business/Corporate Registry search guide with tips and checklist Canadian

Registered Charity Quick View Validate a BN + RR number and open CRA’s live listing Canadian

Non-Resident Withholding Tax Calculator The real Part XIII 25% rate on payments to non-residents Canadian

Canada Workers Benefit Calculator Basic CWB and disability supplement, real CRA Schedule 6 Canadian

CWB Calculator — Quebec, Alberta & Nunavut The 3 provinces the main CWB tool excludes, their own Schedule 6 Canadian

Canada Child Benefit Calculator CCB and Child Disability Benefit, by AFNI Canadian

Child Support Calculator Canada Federal table amount by province, income and children Canadian

Child Support by Province Comparison The same income and children across all 13 tables Canadian

Section 7 Expenses Calculator Split child care and special expenses by income Canadian

Shared Custody Child Support Calculator The 40% rule and the table set-off Canadian

Split Custody Child Support Calculator Each parent has at least one child, section 8 Canadian

Spousal Support Advisory Guidelines Calculator SSAG amount and duration ranges, without child support Canadian

Child Support Arrears Calculator Unpaid support and simple interest Canadian

Support Indexation Calculator CPI, fixed or income-linked cost of living adjustment Canadian

Groceries and Essentials Benefit Calculator CGEB — the renamed GST/HST credit — by AFNI Canadian

Ontario Trillium Benefit Calculator OEPTC, NOEC and OSTC for July 2026-June 2027 Canadian

Ontario Works & ODSP Earnings Calculator Earnings exemptions and chargeable earnings, from ontario.ca directives Canadian

Canada Disability Benefit Calculator CDB income-tested amount for July 2026-June 2027 Canadian

WSIB Ontario Premium Rate Lookup All 35 published 2026 class rates, with a premium estimate Canadian

WCB Alberta Premium Rate Lookup All 93 published 2026 rate groups, with a premium estimate Canadian

WorkSafeBC Premium Rate Lookup 2026 average base rate, with a premium estimate Canadian

GST/HST New Housing Rebate Calculator Federal, FTHB and Ontario rebates — 4 programs, separated Canadian

Veterans Pain and Suffering Compensation Calculator 2026 monthly and lump-sum PSC amounts from VAC's own table Canadian

Toronto Building Permit Fee Estimator City of Toronto 2026 permit fees for additions, renovations and basements Canadian

Postage Rate Calculator Canada Post domestic, U.S. and international rates by weight Canadian

CPSO Registration Number Lookup Format explainer and a direct link to CPSO's Physician Register Canadian

RECO Registration Number Lookup Format explainer and a direct link to RECO's Registrant Search Canadian

CNO Registration Number Lookup Format explainer and a direct link to CNO's Find a Nurse register Canadian

CPSA Physician Search Alberta Guide and link to CPSA's Physician Search (Alberta) Canadian

CRPO Psychotherapist Register Search Guide and link to CRPO's public register (Ontario) Canadian

CPSM Practitioner Profile Search Manitoba Guide and link to CPSM's Practitioner Profile Search Canadian

HCRA Builder Licence Lookup Ontario Guide and link to HCRA's Ontario Builder Directory Canadian

CPSNL Physician Search Newfoundland Guide and link to CPSNL's public physician register Canadian

CPSNS Registrant Search Nova Scotia Guide and link to CPSNS's registrant search Canadian

CPSPEI Physician Search PEI Guide and link to CPSPEI's Physician Search (PEI) Canadian

BCCNM Nurse Lookup Guide and link to BCCNM's Nurse Verification register (BC) Canadian

Find a Nurse Alberta: CRNA Guide Guide and link to CRNA's Verify A Nurse search (RNs and NPs) Canadian

CRNS Nurse Check Saskatchewan Guide and link to the CRNS public directory Canadian

CRNM Nurse Check Manitoba Guide and link to CRNM's Nurse Check register Canadian

Nova Scotia Nurse Search (NSNMR) Guide and link to the NSNMR (formerly NSCN) public directory Canadian

New Brunswick Nurse Search (CNNB) Guide and link to the CNNB (formerly NANB) public directory Canadian

Find a Nurse Newfoundland (NLCN) Guide and link to the NL College of Nurses directories Canadian

PEI Nurse Registry (PEICNM) Guide and link to PEICNM's Find a Registrant directories Canadian

OCP Pharmacist Lookup Guide and link to the Ontario College of Pharmacists register Canadian

RCDSO Dentist Search Guide and link to the RCDSO Find a Dentist register Canadian

Verify a Psychologist in Ontario Guide and link to the CPBAO psychologist public register Canadian

CMTO Find an RMT Lookup Guide and link to the CMTO register of massage therapists Canadian

Find a Physiotherapist in Ontario Guide and link to the College of Physiotherapists register Canadian

COO Optometrist Lookup Guide and link to the College of Optometrists register Canadian

CCO Find a Chiropractor Guide and link to the College of Chiropractors register Canadian

Social Worker Registration Lookup Guide and link to the OCSWSSW Online Register Canadian

Find a Dietitian in Ontario Guide and link to the College of Dietitians Register Canadian

Find a Dental Hygienist in Ontario CDHO register link and December 1 renewal deadline Canadian

Veterinarian Register Ontario CVO public register link and November 30 licence renewal deadline Canadian

OAA Architect Lookup OAA Directory link and January 2 / March 1 renewal dates Canadian

CRTO Respiratory Therapist Lookup CRTO register link and end-of-February renewal deadline Canadian

Find a Denturist in Ontario College of Denturists register link and March 31 renewal deadline Canadian

Find an Occupational Therapist in Ontario COTO register link and May 31 renewal deadline Canadian

LSO Licence Number Lookup Format explainer and a direct link to LSO's Lawyer & Paralegal Directory Canadian

Law Society of BC Lawyer Lookup Guide to the British Columbia lawyer register with a direct link to the official search Canadian

Find a Lawyer in Alberta Guide to the Alberta lawyer register with a direct link to the official search Canadian

Law Society of Saskatchewan Lawyer Lookup Guide to the Saskatchewan lawyer register with a direct link to the official search Canadian

Law Society of Manitoba Lawyer Lookup Guide to the Manitoba lawyer register with a direct link to the official search Canadian

Barreau du Québec Lawyer Lookup (Tableau de l’Ordre) Guide to the Quebec lawyer register with a direct link to the official search Canadian

Nova Scotia Barristers’ Society Lawyer Directory Lookup Guide to the Nova Scotia lawyer register with a direct link to the official search Canadian

Law Society of New Brunswick Lawyer Search Guide to the New Brunswick lawyer register with a direct link to the official search Canadian

Law Society of Newfoundland and Labrador Lawyer Directory Guide to the Newfoundland and Labrador lawyer register with a direct link to the official search Canadian

Law Society of PEI Lawyer Directory Guide to the Prince Edward Island lawyer register with a direct link to the official search Canadian

Verify a Lawyer or Paralegal in Canada Province-by-province guide to the official law society registers, with direct links Canadian

CPA Ontario Member Lookup What CPA Ontario's directories show and a direct link to search them Canadian

CPA BC Member Lookup CPABC member and firm directories explained, with a direct link to search them Canadian

CPA Alberta Directory CPA Alberta member, firm and professional corporation registers with direct links Canadian

CPA Saskatchewan Member Lookup What Find a CPA Member lists and where to search former members and firms Canadian

CPA Manitoba Member Directory CPA Manitoba member and firm directories explained, with direct links Canadian

CPA Quebec (OCPAQ) Lookup Membership roll vs CPA directory at the Ordre des CPA du Québec Canadian

CPA Atlantic Provinces Lookup Four provincial CPA registers for NS, NB, NL and PEI with direct links Canadian

CPA Canada Designation Explained Who grants the CPA designation and where to verify a CPA Canadian

Is My Accountant a CPA? Checklist 8-step checklist and a province picker that opens the official CPA register Canadian

PEO Professional Engineer Lookup Format explainer and a direct link to PEO's Directory Canadian

CPSBC Physician Directory Lookup Format explainer and a direct link to CPSBC's Directory Canadian

BCFSA Real Estate Licence Lookup Format explainer and a direct link to BCFSA's Find a Professional search Canadian

BC Assessment Roll Number Lookup Format a BC Assessment jurisdiction and roll number for the official search Canadian

DineSafe Lookup (Toronto) What Pass, Conditional Pass and Closed mean, with a link to the City of Toronto DineSafe search Canadian

Toronto Business Licence Lookup Where to check a Toronto business licence, find licence types, renew, or download open data Canadian

Toronto Zoning Lookup Find a Toronto property's zoning on the City map and read Zoning By-law 569-2013 Canadian

Toronto Building Permit Status Which Toronto service shows the status of a building permit, zoning review or planning application Canadian

Ottawa and Calgary Permit Lookup Official building permit and development application searches for Ottawa and Calgary Canadian

Alberta Land Title Search Check a 10-digit Alberta LINC and find the official land title search Canadian

Ontario Property PIN Checker Check an Ontario 9-digit PIN, split block and property, and find the ONLAND search Canadian

Parking Ticket Lookup by City Official parking ticket payment pages for Toronto, Ottawa, Calgary, Vancouver, Edmonton and Winnipeg Canadian

Ontario Licence Plate Sticker Check Which Ontario vehicles still need a licence plate sticker, with the ServiceOntario expiry check Canadian

OCT Teacher Lookup (Ontario) Guide and link to the Ontario College of Teachers' Find a Teacher register Canadian

BC Teacher Certificate Lookup Guide and link to the BC Teachers Regulation Branch registry Canadian

Alberta Teacher Certification Lookup Guide and link to Alberta's Teacher and Teacher Leader Registry Canadian

Saskatchewan Teacher Registry Lookup Guide and link to the SPTRB public registry Canadian

Manitoba Teacher Registry Lookup Guide and link to Manitoba's registry of certified teachers Canadian

NS, NB, NL Teacher Certification Check What is public in Nova Scotia, New Brunswick and Newfoundland and Labrador Canadian

Quebec Brevet Verification How Quebec teaching authorizations are checked Canadian

Verify Teacher Certification in Canada Province-by-province guide to teacher registers Canadian

State Teacher License Lookup Directory Official US state teacher licence lookups and their limits U.S.

Skilled Trades Ontario Register Lookup Verify an electrician or other compulsory-trade worker on the official Public Register Canadian

SkilledTradesBC Certification Check Format a BC certificate number for the official SkilledTradesBC verification form Canadian

Alberta Tradesperson Lookup Tell an Alberta certificate number from an AIT ID before using the official lookup Canadian

Red Seal Verification by Province Who verifies a Red Seal endorsement in each province and territory, and what they need Canadian

ECRA/ESA Contractor Licence Lookup Check the shape of an ECRA/ESA licence number and open ESA's contractor locator Canadian

TSSA Fuels Contractor Lookup Check an Ontario gas, oil or propane contractor in TSSA's registry; G1/G2/G3 explained Canadian

Technical Safety BC Licence Lookup Find a licensed gas or electrical contractor or certified individual in BC Canadian

RBQ Licence Verification Check the 10-digit RBQ licence format and open the official Quebec contractor registry Canadian

Trades Licence Number Identifier Paste a trades licence or certificate number to see which Canadian register it fits Canadian

RECA ProCheck: Verify a Realtor Licence in Alberta The Real Estate Council of Alberta (RECA) runs ProCheck, a public search that confirms whether a real estate, mortgage, property management or condominium management professional in Alberta is properly licensed. Canadian

Saskatchewan Mortgage Broker Licence Lookup (FCAA) In Saskatchewan, the Financial and Consumer Affairs Authority (FCAA) publishes lists of licensed mortgage brokerages, administrators, brokers and associates. Canadian

Manitoba Realtor Registration Search (Real Estate Division) Manitoba’s Real Estate Division registers real estate brokers, salespersons and mortgage brokers and runs a public registrant search. Canadian

OACIQ Register: Verify a Quebec Real Estate Broker The OACIQ (Organisme d’autoréglementation du courtage immobilier du Québec) publishes a register of real estate brokerage and agency licence holders. Canadian

Nova Scotia Realtor Licence Search (NSREC) The Nova Scotia Real Estate Commission (NSREC) regulates the province’s real estate industry and offers a public search of licensees and brokerages. Canadian

New Brunswick Realtor & Mortgage Licence Check (FCNB) The Financial and Consumer Services Commission (FCNB) licenses real estate agents, salespeople and managers and mortgage brokers in New Brunswick, and publishes four public licence checks. Canadian

FSRA Mortgage Broker Lookup: Ontario Licence Check FSRA (the Financial Services Regulatory Authority of Ontario) licenses mortgage brokerages, administrators, brokers and agents and links a public registry of licensees. Canadian

CMRAO Condo Manager Lookup: Verify an Ontario Licence The Condominium Management Regulatory Authority of Ontario (CMRAO) keeps a public registry of licensed condominium managers and condominium management provider businesses. Canadian

FSRA Insurance Agent Licence Lookup Search Ontario's licensed agent listing; deep link to FSRA Canadian

FSRA Insurance Adjuster Lookup Check an Ontario adjuster or firm via FSRA's registry Canadian

FSRA Pension Plan Lookup Guide Find a pension plan by number, name or sponsor at FSRA Canadian

FSRA Licence Status Meaning Explainer What expired, terminated or suspended means, sourced to FSRA Canadian

Mortgage Broker Red Flags Checklist Tick FSRA-named warning signs before paying a mortgage broker Canadian

Ontario Financial Regulator Directory Which Ontario regulator licenses which financial professional Canadian

Insurance Council of BC Lookup: Check an Agent Licence Insurance Council of BC lookup: how to check a BC insurance agent, adjuster or agency in the Licensee Directory, what the statuses mean, and what it leaves out. Canadian

BCFSA Mortgage Broker Lookup: Check a BC Licence BCFSA mortgage broker lookup for British Columbia: what the Find a Mortgage Broker search lists, how brokers, principal brokers and brokerages differ, and the link. Canadian

Alberta Insurance Council Licence Lookup: Agent Check Alberta Insurance Council licence lookup: how to use the Agent Lookup to confirm an insurance agent, broker or adjuster is licensed in Alberta, and the licence types. Canadian

Manitoba Insurance Council Lookup: Licensee Search Manitoba Insurance Council licence lookup: how the ICM Licensee Search works for agents, brokers and adjusters, the filters it offers, and its 200-result limit. Canadian

Saskatchewan Insurance Agent Licence Lookup (ICS) Saskatchewan insurance agent licence lookup: how the Insurance Councils of Saskatchewan Licensee Search works for agents, brokers, adjusters and agencies, with the link. Canadian

AMF Representative Search: Check a Quebec Licence AMF representative search for Quebec: how to use the AMF Register of firms and individuals authorized to practice to check an insurance or financial representative. Canadian

Nova Scotia Insurance Agent Lookup: Licence Check Nova Scotia insurance agent lookup: how to search licensed agents, agencies and adjusters with the Superintendent of Insurance online lookup, and what it shows. Canadian

New Brunswick Insurance Licence Lookup (FCNB) New Brunswick insurance licence lookup: FCNB searches for agents, brokers, adjusters, agencies, adjusting firms and restricted representatives, and what each licence needs. Canadian

Insurance Regulator by Province: Who Licenses Agents Which regulator licenses insurance agents in each Canadian province, with a link to each official licence search and a note on Yukon, the NWT and Nunavut. Canadian

Charity Registration Number Format Check the BN + RR + 4-digit shape and link to CRA's List of Charities Canadian

IMEI Check Digit Validator Verify a 15-digit IMEI's Luhn checksum — format check only Canadian

ICCID Decoder / SIM Check Digit Verify a SIM number's Luhn check digit and read its country code Canadian

MEID Converter and Check Digit Convert an MEID between hex and decimal and check its Luhn digit — format check only Canadian

Luhn Algorithm Validator Educational Luhn checksum check — never enter a real card number Canadian

EAN-13 / UPC-A Check Digit Validator Validate a barcode's GS1 check digit or compute a missing one Canadian

GLN / SSCC / GTIN Check Digit Validator Validate or compute the GS1 check digit of a GLN, SSCC or GTIN Canadian

ABA Routing Number Validator Validate a US bank routing number's real weighted mod-10 checksum Canadian

IBAN Validator Validate an international bank account number's ISO 7064 MOD 97-10 checksum Canadian

LEI Validator Validate a Legal Entity Identifier's ISO 17442 check digits Canadian

Thai National ID Validator Check a 13-digit Thai national ID's category digit and modulo 11 check digit Canadian

Korean Resident Registration Number Check Check a 13-digit RRN's format, birth date and mod-11 check digit Canadian

Belgian National Number Check Check an 11-digit rijksregisternummer's format and mod-97 check digits Canadian

Norwegian Fødselsnummer Validator Check an 11-digit Norwegian national ID's two check digits and birth date Canadian

Icelandic Kennitala Validator Check an Icelandic kennitala's date part, check digit and century marker. Browser-only. Canadian

Swiss AHV / AVS Number Validator Check the 756 prefix and EAN-13 check digit of a Swiss AHV / AVS number. Browser-only. Canadian

Austrian Sozialversicherungsnummer Validator Check an Austrian Versicherungsnummer's check digit and layout. Browser-only. Canadian

Danish CVR Number Validator Check a Danish CVR number's modulus-11 check. Browser-only. Canadian

Swedish Organisationsnummer Validator Check a Swedish organisationsnummer: third digit and Luhn check digit. Browser-only. Canadian

Dutch BTW Number Validator Check the format and checksum of a Dutch btw-id. Browser-only; no VIES lookup. Canadian

Turkey T.C. Kimlik No Validator Check a Turkish 11-digit identity number's two check digits (EN/TR) Canadian

RF Creditor Reference Generator Generate or validate an ISO 11649 RF reference's MOD 97-10 check digits Canadian

India PAN Card Number Validator Check a PAN's AAAAA9999A format and decode the holder-type letter Canadian

India Voter ID (EPIC) Number Format Checker Check the 3 letters + 7 digits format of an Indian voter ID (EPIC) number Canadian

Malaysia NRIC (MyKad) Number Validator Check a 12-digit MyKad number: birth date, JPN place-of-birth code, gender digit Canadian

Vietnam CCCD Citizen ID Number Checker Decode a 12-digit Vietnamese CCCD: province code, century, gender and birth year Canadian

Indonesia NIK (KTP) Number Validator Decode a 16-digit NIK: province, birth date (women +40) and serial Canadian

Philippines PhilSys and TIN Number Format Checker Tell a 16-digit PhilSys PCN from a 9 or 12-digit TIN by format Canadian

Pakistan CNIC Number Format Checker Check the 13-digit 5-7-1 layout of a Pakistani CNIC Canadian

Bangladesh NID Number Format Checker Recognise 10, 13 and 17-digit Bangladesh NID numbers by format Canadian

Sri Lanka NIC Number Validator Decode old (9 digits + V/X) and new 12-digit Sri Lankan NIC numbers Canadian

Chinese Resident ID Card Validator Check an 18-character ID's MOD 11-2 check character and decode the birth date Canadian

Japan My Number Validator Check a 12-digit My Number (マイナンバー) check digit. Checksum only Canadian

Israeli ID Number Validator Check an Israeli ID (Mispar Zehut) 9-digit format and check digit. Checksum only Canadian

Japan Corporate Number Check Digit (法人番号) Calculate or check a 13-digit 法人番号 check digit. Checksum only Canadian

India Aadhaar Number Validator Check an Aadhaar number's 12-digit format and real Verhoeff check digit Canadian

South African ID Number Validator Check a 13-digit South African ID's Luhn digit and decode birth date, gender, status Canadian

Swedish Personnummer Validator Check a Swedish personnummer or samordningsnummer: Luhn digit, date, + for age 100 Canadian

German Steuer-ID Validator Check a German tax ID: 11-digit format, repeat rule and MOD 11,10 check digit Canadian

Brazil CNPJ Validator Check a numeric or new alphanumeric CNPJ's modulo 11 check digits Canadian

Taiwan Unified Business Number Checker Check a 統一編號's checksum under the current mod 5 and legacy mod 10 rules Canadian

Argentina CUIT / CUIL Validator Check a CUIT or CUIL's modulo 11 check digit and calculate a CUIL from a DNI Canadian

Mexico CLABE Validator Check an 18-digit CLABE's format and real check digit Canadian

Spain DNI & NIE Validator Check a Spanish DNI or NIE against its modulo 23 check letter Canadian

Chile RUT Validator Validar RUT: check a Chilean RUT/RUN and calculate its modulo 11 check digit Canadian

Mexico RFC Validator Check a Mexican RFC: format, date and check character Canadian

Mexico CURP Validator Validar CURP: structure, birth date, state code and check digit Canadian

Peru DNI & RUC Validator Peru DNI check character and 11-digit RUC validator Canadian

Uruguay Cédula de Identidad Validator Validar cédula uruguaya: verifier digit with weights 2987634 Canadian

Ecuador Cédula & RUC Validator Validate an Ecuadorian 10-digit cédula or 13-digit RUC Canadian

Venezuela RIF Validator Check the modulo 11 check digit of a Venezuelan RIF Canadian

Bolivia NIT Format Checker Check the shape of a Bolivian NIT (format only) Canadian

Paraguay RUC Validator Validar RUC Paraguay: modulo 11 check digit Canadian

Costa Rica Cédula Format Checker Recognise a Costa Rican cédula física, jurídica or DIMEX (format only) Canadian

Croatian OIB Validator OIB check: validate a Croatian OIB's format and ISO 7064 MOD 11,10 check digit Canadian

Malaysia MyKad Number Checker MyKad number checker: decode birth date, place code and gender digit Canadian

Indonesia NIK Checker NIK checker: decode province, birth date and gender of a 16-digit KTP number Canadian

Hong Kong HKID Validator HKID check digit: validate a Hong Kong ID number and see the expected digit Canadian

Pakistan CNIC Number Checker CNIC checker: format, province digit and gender digit of a 13-digit CNIC Canadian

Emirates ID Number Validator Emirates ID format check: 784 prefix, year segment and Luhn digit Canadian

Saudi National ID and Iqama Validator Saudi national ID and iqama validator: leading digit and check digit Canadian

Mexico CURP and RFC Validator CURP validator and RFC check: layout, date, state code and check digit Canadian

Ecuador Cedula Validator Ecuador cedula validator: province code and check digit Canadian

EU VAT Number Validator Check an EU VAT number's format for all 27 states, with a real checksum for 5 major economies Canadian

Italian Codice Fiscale Validator Check a codice fiscale's real check letter and decode birth date and sex Canadian

DIN Lookup Canada Search Health Canada's Drug Product Database by 8-digit DIN Canadian

BC PHN Validator Check a BC Personal Health Number's format and Mod 11 check digit Canadian

Canadian Passport Number Format One letter, six digits, two letters: check the 2023+ shape in your browser Canadian

Alberta Health Care Number Format ULI and PHN: nine digits, shown 99999-9999 Canadian

Manitoba PHIN Validator Check the shape of a nine-digit Manitoba PHIN Canadian

Saskatchewan HSN Validator Check the shape of a nine-digit Health Services Number Canadian

RAMQ Number Validator Quebec health insurance number: 4 letters + 8 digits, decoded Canadian

PEI Health Card Number Format Check the shape of an eight-digit PEI health number Canadian

Health Card Number Format by Province Digit counts for each province, with sources and gaps Canadian

Driver Licence Number Format by Province Licence number pattern for every province and territory Canadian

Ontario Driver Licence Number Format Letter plus 14 digits, and the birth-date digits explained Canadian

NHS Number Validator Validate a UK NHS Number's real Modulus 11 check digit Canadian

Portugal NIF Validator Validate a Portuguese NIF / PT VAT number's modulo 11 check digit Canadian

France SIRET & SIREN Validator Check a French SIRET / SIREN Luhn check digit, with the La Poste exception Canadian

CRA Vehicle Mileage Rate Calculator Reasonable per-km automobile allowance, 2026 rates Canadian

Ontario Speeding Fine Calculator Set fine, surcharge and demerit points by zone Canadian

Ontario Demerit Points Calculator Active points, warning level and drop-off dates Canadian

Demerit Points Expiry Date Calculator When points drop off in Ontario, Alberta and Quebec Canadian

Demerit Suspension Thresholds by Province Warning and suspension points for Ontario, Alberta, Quebec Canadian

Ontario Licence Reinstatement Fee Lookup The $281 fee and tests by length of suspension Canadian

Ontario Licence Plate Renewal Fee Lookup Plate, permit and licence fees from ontario.ca Canadian

Ontario G1 G2 G Timeline Calculator Earliest G2 and G road test dates and the five-year limit Canadian

Ontario G2 Licence Restrictions Checker G1 and G2 rules and the G2 passenger limit by date Canadian

Car Depreciation Estimator CRA's real 30% declining-balance vehicle schedule Canadian

Random Canadian Postal Code GeneratorRandom format-valid postal codes by province, labelled as test dataCanadian

Canadian Test Phone Number Generator Fictional Canadian numbers using the reserved 555-0100 to 0199 block Canadian

Do You Need a Dealer License to Flip Cars? FTC Used Car Rule, state DMV links and the curbstoning risk. U.S.

Car Flip Max Bid Calculator Highest bid that still reaches your target profit. U.S.

Cost to Recondition a Car for Resale Line-item reconditioning budget with contingency. U.S.

Car Holding Cost Per Day Calculator What each extra day unsold costs a car flip. U.S.

Car Flipping Taxes and Fees Sales tax, title, 1099-K and Schedule C, with IRS sources. U.S.

Flip vs Keep vs Wholesale a Car Compare three exits on one cost basis. U.S.

ITIN Format Validator Check an ITIN's 9-digit format and middle digits (a match does not prove it was issued) U.S.

NCUA Credit Union Lookup Search 4,214 insured credit unions by charter number, name or state U.S.

TRI Facility Lookup Search EPA Toxics Release Inventory facilities by name, city or state U.S.

County FIPS Code Lookup Search 3,235 U.S. county FIPS codes and state codes U.S.

FAA Airport Identifier Lookup Search 4,858 U.S. public-use airports by FAA or ICAO code, with runways U.S.

IRS Estimated Tax Deadline CalendarFour Form 1040-ES installment dates with holiday adjustmentsU.S.

Social Security COLA Calculator Estimate the 2027 COLA from CPI-W and see every COLA since 1975 U.S.

Social Security Payment Calendar Find 2026 Social Security and SSI dates by birth-date group U.S.

Capital Gains Tax Calculator 2026 short- and long-term gains at 0/15/20% plus NIIT U.S.

401(k) Contribution Limit Estimate 2026 employee deferral and catch-up room U.S.

Medicare IRMAA Calculator 2026 Part B and Part D income surcharge by MAGI U.S.

U.S. Rates History Hub Prime, fed funds, I bond, IRS mileage and Social Security numbers in one place U.S.

U.S. Prime Rate History Every prime rate change since 1955 with date lookup and CSV U.S.

FOMC Dates and Fed Funds History 2026-2027 meeting calendar and every target change since 1982 U.S.

I Bond Rate History Fixed, inflation and combined I bond rates since 1998 U.S.

IRS Mileage Rate History Business, charity and medical cents per mile since 2011 U.S.

Social Security Taxable Maximum The wage base for every year since 1937 with a cap calculator U.S.

Earned Income Tax Credit Estimator Estimate your 2026 EITC and see why it is zero U.S.

Medicare Late Enrollment Penalty Calculator Part B and Part D penalty, monthly and lifetime U.S.

Property Tax Proration Calculator Split a tax bill between buyer and seller at closing U.S.

HSA Contribution Limit Calculator 2026 HSA limit with mid-year start, Medicare, employer money and tax saved U.S.

Solo 401(k) and SEP IRA Contribution Calculator Compare 2026 self-employed limits from Schedule C profit and age U.S.

Pre-Tax Deduction Paycheck Impact Take-home change and real cost of 401(k), HSA and section 125 deductions U.S.

W-4 Withholding Calculator Federal tax withheld per paycheck from your 2026 Form W-4 U.S.

W-4 Steps 2 to 4 Estimator What to enter for multiple jobs, dependents, other income and deductions U.S.

W-4 Multiple Jobs Calculator Step 2(b) worksheet amount for two jobs or a working spouse U.S.

W-4 Allowances Converter Old W-4 allowances to the Step 4 amount on the current form U.S.

W-4 Over/Under Withholding Check Project your 2026 refund or balance due from your pay stub U.S.

How to Fill Out Form W-4 Step-by-step 2026 guide with a checklist of the steps you need U.S.

W-4 Exempt from Withholding Checker The two IRS conditions for claiming exempt on the 2026 W-4 U.S.

Minnesota Paycheck Calculator Net pay with the Minnesota computer formula and Paid Leave premium U.S.

Maryland Paycheck Calculator Net pay with Maryland state plus local income tax by county rate U.S.

Wisconsin Paycheck Calculator Net pay with the Wisconsin alternate withholding method U.S.

Missouri Paycheck Calculator Net pay with the Missouri withholding formula and standard deductions U.S.

Indiana Paycheck Calculator Net pay with the 2.95% state rate and your Indiana county tax U.S.

Oregon Paycheck Calculator Take-home pay with Oregon tax, Paid Leave Oregon and transit tax U.S.

South Carolina Paycheck Calculator Net pay with the SCDOR 2026 withholding formula and allowances U.S.

Alabama Paycheck Calculator Net pay with the Alabama formula that subtracts federal withholding U.S.

Louisiana Paycheck Calculator Net pay with the Louisiana 3.09% withholding formula U.S.

Kentucky Paycheck Calculator Net pay with Kentucky 3.5% flat tax and $3,360 deduction U.S.

Home Sale Capital Gain Exclusion Section 121 $250,000/$500,000 exclusion, taxable gain and 2026 tax U.S.

Net Investment Income Tax 3.8% NIIT on the lesser of investment income or MAGI over threshold U.S.

Seller Net Proceeds Calculator Net cash from a home sale after payoff, commissions and closing costs U.S.

No Tax on Tips Deduction 2025-2028 $25,000 cap, MAGI phase-out and tax saved U.S.

SALT Deduction Cap Calculator 2026 $40,400 cap, MAGI phase-down and itemize vs standard U.S.

Child Tax Credit and ACTC 2026 $2,200 per child, phase-out and refundable ACTC U.S.

Car Loan Interest Deduction 2025-2028 $10,000 cap, MAGI phase-out and tax saved U.S.

Saver's Match Calculator 50% federal match on $2,000 of retirement savings, 2027 phase-out U.S.

Non-Itemizer Charitable Deduction 2026 deduction for cash gifts without itemizing: $1,000 ($2,000 joint) U.S.

Gig Driver Profit Per Hour Calculator Net profit per hour and mile, break-even pay per mile, tax set-aside and IRS mileage U.S.

Vehicle Tax, Title and Registration Car sales tax, title and base registration for TX, VA, FL and KS U.S.

Negative Equity Car Trade-In Calculator Payment, loan-to-price and extra interest when a trade-in is underwater U.S.

Dependent Care FSA vs Credit 2026 $7,500 FSA or child care credit: which saves more U.S.

Senior Deduction ($6,000) Age 65+ deduction for 2025-2028 with MAGI phase-out and tax saved U.S.

State Income Tax Calculator 2026 Estimate state income tax in any state from 2026 brackets, deductions and exemptions U.S.

States With No Income Tax (2026) The 8 states with no income tax, compared on sales and property tax U.S.

Sales Tax by State Lookup (2026) State, average local and combined sales tax rate for every state and DC U.S.

Property Tax Rate by State Calculator Effective property tax rate for every state and annual tax on your home value U.S.

Is Social Security Taxed by State? Which states tax Social Security benefits in 2026, with official sources U.S.

State Estate Tax Threshold Checker (2026) State estate and inheritance tax exemptions and how your estate compares U.S.

Moving Between States Take-Home Comparator Compare state income, sales and property tax between two states U.S.

Trump Account Calculator $1,000 pilot, $5,000 limit and growth to age 18 U.S.

Roth IRA Contribution Room Apply 2026 MAGI phase-outs and the IRA limit U.S.

Roth Conversion Tax Calculator 2026 federal tax, brackets crossed and the pro-rata rule U.S.

Roth Conversion Bracket Room How much to convert before the next bracket and each IRMAA line U.S.

Required Minimum Distribution Estimate a 2026 RMD from the IRS Uniform Lifetime Table U.S.

Social Security Claiming Break-Even Compare simplified benefits at 62, FRA and 70 U.S.

Social Security Spousal Benefit Up to 50% of the worker's PIA, reduced if claimed early U.S.

ACA Subsidy Cliff Calculator 2026 premium tax credit and the 400% FPL cutoff U.S.

Home Office Deduction: Simplified vs Regular $5 per sq ft versus Form 8829 actual expenses, Schedule C U.S.

Taxable Social Security Benefits How much of your benefits are taxable, per IRS Pub. 915 U.S.

Tip Credit and Overtime Calculator Tipped cash wage, tip credit used, overtime and employer shortfall U.S.

No Tax on Overtime Deduction 2025-2028 premium-only deduction, $12,500 cap and phase-out U.S.

VA Combined Rating Calculator Combine VA disability ratings step by step, with bilateral factor U.S.

VA Disability Payment Calendar Expected 2026 recurring VA compensation deposit dates U.S.

SBA 7(a) Guaranty Fee Calculator FY 2026 upfront guaranty fee and lender annual service fee U.S.

SBA 7(a) Loan Calculator Payment and the highest rate the SBA spread cap allows U.S.

SBA 7(a) Prepayment Fee Calculator The 5%, 3% and 1% fee, the 25% test and the fee-free amount U.S.

Section 179 and Bonus Depreciation Estimator 2025 and 2026 IRS limits and first-year deduction U.S.

U.S. NAICS Code Lookup Search the complete 2022 hierarchy and historical SIC crosswalk U.S.

SBA Size Standards Lookup Revenue or employee limit for small business status by NAICS code

Colorado Business Entity Lookup Search Colorado state records for entity status, type and formation date U.S.

EIN & Nonprofit Lookup Search IRS exempt-organization records by EIN, name, city and state U.S.

EPA ECHO Facility Lookup Compliance status and last inspection for a U.S. facility from EPA U.S.

Federal Estimated Tax Due Dates The four 2026 Form 1040-ES payment deadlines from the IRS U.S.

Quarterly Estimated Tax Calculator Split a remaining federal tax balance into four planning payments U.S.

Self-Employment Tax Calculator Estimate federal Social Security and Medicare tax on net earnings U.S.

First-Year Estimated Tax Start Dates Which 1040-ES payments apply when self-employment income starts U.S.

Annualized Income Installment Calculator Model Schedule AI installments for uneven self-employment income U.S.

Self-Employment Tax $400 Threshold Checker Check the $400 net earnings test for a small side income U.S.

Additional Medicare Tax for the Self-Employed The 0.9% Form 8959 tax with the wage-reduced threshold U.S.

Self-Employed Health Insurance Deduction Form 7206 deduction limit after half of SE tax U.S.

QBI Deduction Calculator for Sole Proprietors 20% qualified business income deduction below the 2026 threshold U.S.

IRS Mileage Deduction Calculator Apply the 2026 standard rate for business, medical or charitable miles U.S.

State Unemployment Benefit Estimator (US) Estimate weekly benefit, cap and maximum weeks from quarterly wages by state U.S.

Shift Differential Pay Calculator Weekly gross pay, regular rate and overtime premium with shift differentials U.S.

Mortgage Interest Deduction Calculator Apply the $750,000 debt limit and compare itemizing with the 2026 standard deduction U.S.

Standard vs Itemized Deduction Calculator Compare the 2026 standard deduction with your itemized total, SALT cap included U.S.

U.S. State Labor Rules Compare minimum wage, overtime, payday frequency and paid sick leave U.S.

Federal Poverty Level Calculator2026 HHS poverty guidelines by household size, 138% FPL and moreU.S.

Pell Grant EstimatorPlan a possible 2026–27 Pell amount from SAI and enrollmentU.S.

FAFSA Aid Gap EstimatorEstimate remaining college cost after SAI and known aidU.S.

FAFSA School Code LookupSearch 6,419 Federal School Codes (2025-26 list)U.S.

Federal Loan Plan ComparisonCompare 10-year and 25-year fixed-payment estimatesU.S.

Federal Tax Brackets 20262026 brackets, standard deduction and a marginal and effective rate calculatorU.S.

Student Loan Interest DeductionEstimate the 2025 deduction and tax saved after the MAGI phaseoutU.S.

Wash Sale Rule CalculatorDisallowed loss, basis adjustment and the 61-day windowU.S.

PSLF Progress PlannerProject remaining months to 120 qualifying paymentsU.S.

Student Loan Refinance CalculatorCompare payment, break-even month on fees and total interest for a student loan refinanceU.S.

Income-Driven Repayment Payment EstimatorEstimate monthly payments under IBR, PAYE and the Repayment Assistance Plan from your AGIU.S.

Student Loan Interest Accrual CalculatorDaily and total interest that builds up in school, grace, deferment or non-payment, and the balance if capitalizedU.S.

Student Loan Capitalization CalculatorNew balance, daily interest, payment and interest on interest when unpaid interest capitalizesU.S.

Student Loan Balance at Graduation CalculatorInterest that builds up through school and the grace period, and what you owe when repayment startsU.S.

Direct Consolidation Loan Interest Rate CalculatorWeighted-average rate, rounded up to the nearest eighth of a percent, for a federal Direct Consolidation LoanU.S.

Student Loan Forgiveness Tax CalculatorEstimate the tax on forgiven student loan debt with the IRS exceptions and insolvency exclusionU.S.

Student Loan Interest-Only Payment CalculatorInterest-only monthly payment, the full payment after it, and the extra interest it costsU.S.

SSN Format Validator Check a Social Security number against SSA format rules; format only U.S.

FDIC Bank Lookup Find a bank's FDIC cert, active status, location and insured date U.S.

Nursys Nurse License Verification Guide Verify an RN, LPN/VN or APRN license through NCSBN Nursys, with the state-board fallback. U.S. licences

Florida Nursing License Lookup Use the Florida DOH MQA portal to verify a Florida nursing licence; compact licences go through Nursys. U.S. licences

California RN License Lookup Look up a California nursing licence in the DCA License Search used for BRN licences. U.S. licences

Texas Nursing License Lookup Open the Texas Board of Nursing licence lookup to verify a Texas nursing licence. U.S. licences

New York Professional License Lookup Use the NYSED Office of the Professions verification search for New York nurses, engineers and more. U.S. licences

CPA License Lookup by State Use NASBA’s CPAverify to look up a CPA licence by name or number, then confirm with the state board. U.S. licences

State Bar Attorney Lookup Official attorney-search links for California, Texas, Florida and New York. U.S. licences

PE License Verification (NCEES) PE licences come from state boards; NCEES lists them all so you can reach the right lookup. U.S. licences

Contractor License Lookup (CA, FL, TX) Official lookups for CSLB (California), DBPR (Florida) and TDLR (Texas trades). U.S. licences

NPI Provider Lookup Inspect a public provider record from the official CMS NPPES directory U.S. health data

US Attorney Bar Number Lookup Guides to ten official state bar directories: numbers, search rules, discipline U.S. licensing

California Attorney Lookup How the official California lawyer directory works, with a direct link U.S. licensing

New York Attorney Lookup How the official New York lawyer directory works, with a direct link U.S. licensing

Texas Attorney Lookup How the official Texas lawyer directory works, with a direct link U.S. licensing

Florida Attorney Lookup How the official Florida lawyer directory works, with a direct link U.S. licensing

Illinois Attorney Lookup How the official Illinois lawyer directory works, with a direct link U.S. licensing

Pennsylvania Attorney Lookup How the official Pennsylvania lawyer directory works, with a direct link U.S. licensing

Ohio Attorney Lookup How the official Ohio lawyer directory works, with a direct link U.S. licensing

Georgia Attorney Lookup How the official Georgia lawyer directory works, with a direct link U.S. licensing

New Jersey Attorney Lookup How the official New Jersey lawyer directory works, with a direct link U.S. licensing

Washington Attorney Lookup How the official Washington lawyer directory works, with a direct link U.S. licensing

Superfund Site Status Lookup Search EPA NPL sites by name, city or state; see status, EPA ID and profile link U.S. environment

ICD-10-CM Search Search FY 2026 U.S. diagnosis-code descriptions by code or term U.S. health data

HCPCS Level II Search Search the current public CMS alphanumeric Level II code file U.S. health data

EPA Safer Choice Lookup Search EPA's certified Safer Choice products by brand or category U.S.

W-2 & 1099 Deadline PlannerPlan common federal information-return deadlinesU.S.

U.S. Paycheck Calculator2026 gross to net: federal withholding, FICA, state rate, pre-taxU.S.

Federal Income Tax Calculator2026 brackets, standard deduction, marginal vs effective rateU.S.

FICA Tax Calculator2026 Social Security and Medicare: employee, employer, self-employedU.S.

Payroll Deposit ScheduleEstimate IRS monthly, semiweekly or next-day timingU.S.

Sales-Tax Nexus ScreenFlag common state-tax registration triggersU.S.

Economic Nexus Thresholds by StateSales and transaction thresholds for all 50 states and DC with sourcesU.S.

California Seller's Permit Lookup and Resale Certificate Check Look up a CDTFA permit and test a resale certificate for the seven required elements U.S.

Texas Resale Certificate and Permit Number Check Decode the 11-digit Taxpayer ID and see what Form 01-339 must contain U.S.

New York ST-120 Resale Certificate and 90-Day Check Verify a vendor and count the 90 days that protect you on an ST-120 U.S.

Florida Annual Resale Certificate Verification Check a 13-character certificate number and the December 31 expiry U.S.

Washington Reseller Permit Verification Decode the expiry year in a permit number and find the 120-day deadline U.S.

Illinois Certificate of Resale (CRT-61) Checklist Test a certificate against the six required elements and verify a registration U.S.

Pennsylvania REV-1220 Resale Certificate Check Check the license ID shape and the 60-day rule for accepting a REV-1220 U.S.

Ohio Vendor's License Lookup and Fee Guide Use the Active Vendors list and estimate the $50 per location license fee U.S.

1099-K Threshold by State See which state and federal 1099-K reporting tests your payments meet U.S.

Place of Service Codes List: 02 vs 10 vs 11 Search CMS POS codes and get the 02, 10 or 11 answer for a telehealth visit U.S.

RxBIN, RxPCN and RxGroup Explained What the three pharmacy card numbers mean, with a shape check and no member ID U.S.

FMLA Eligibility Calculator Test 12 months, 1,250 hours and 50 employees within 75 miles U.S.

FMLA Leave Balance Calculator (Rolling 12 Weeks) Find your remaining FMLA weeks on a rolling 12-month year U.S.

COBRA Premium Calculator (102% Maximum) The most a plan can charge for COBRA, with the 150% disability months U.S.

COBRA Election Deadline Calculator Count the 60-day election window and the 45-day first payment date U.S.

Marketplace Facilitator Laws by StateWho collects sales tax and whether marketplace-only sellers registerU.S.

Sales Tax on Shipping by StateWhich states tax shipping and handling, with agency sourcesU.S.

Sales Tax Filing Frequency and Due DatesMonthly, quarterly and annual rules and due dates by stateU.S.

Sales Tax Registration Links by StateOfficial state portals for getting a sales tax permitU.S.

Do I Need to Collect Sales Tax?Screen your sales into a state against its nexus thresholdU.S.

BOI Status CheckCurrent FinCEN starting point for entity statusU.S.

Insurance License Lookup by StateOfficial producer search for ten states, plus NPN shape checkU.S.

NPN Lookup and NIPR PDB GuideWhat an NPN is and what NIPR will and will not showU.S.

Texas Insurance Agent License SearchTDI agent lookup by name or license numberU.S.

Florida Insurance Agent License SearchDFS licensee search by name, license number or NPNU.S.

New York Insurance Agent License SearchDFS Producer/Licensee Search and its CAPTCHAU.S.

Illinois Insurance Producer License LookupIDOI producer lookup through the NAIC searchU.S.

Pennsylvania Insurance Agent License LookupPA Insurance Department search and enforcement searchU.S.

Ohio Insurance Agent License LookupODI Agent / Agency Locator by name, NPN, city or zipU.S.

Georgia Insurance Agent License LookupOCI Producer Portal license inquiryU.S.

New Jersey Insurance License SearchDOBI Licensee Search for insurance producersU.S.

FHFA Conforming Loan Limits Search 2026 county limits for Fannie Mae and Freddie Mac loans U.S.

FHA County Loan Limits Search HUD's 2026 FHA forward mortgage limits by county U.S.

FHA MIP Calculator Upfront and annual FHA mortgage insurance from HUD's rate table U.S.

PMI Removal Planner Estimate 80%, 78% and midpoint mortgage-insurance dates U.S.

USDA Loan Guarantee Fee Calculator Estimate the USDA upfront fee, financed total and annual-fee add-on U.S.

How Much House Can I Afford Max home price from your salary, DTI caps, down payment, tax and PMI U.S.

Refinance Break-Even How many months of savings recover refinance closing costs? U.S.

2-1 Buydown Calculator Cost and yearly payments for 2-1, 3-2-1 and 1-0 rate buydowns U.S.

Escrow Shortage Calculator Estimate escrow shortage, cushion and your new monthly payment U.S.

Mortgage Points Break-Even Compare two Loan Estimate quotes: break-even months and interest saved U.S.

15 vs 30 Year Mortgage Calculator Payment gap, total interest and the break-even return on investing the difference U.S.

Transfer Tax Calculator by State Doc stamps, mansion tax and deed tax for FL, GA, PA, NJ, NY, TN, IA, ME and CA U.S.

Mortgage Recast Calculator Lower payment after a lump sum, or keep paying and finish sooner? U.S.

HELOC Payment Calculator Draw-period vs repayment payment, the jump, payment at your rate cap, CLTV U.S.

Debt-to-Income Ratio Front-end and back-end DTI for a mortgage, car loan or HELOC vs Fannie Mae limits U.S.

APR Calculator with Fees True APR from the note rate and fees: amount financed, finance charge, total of payments U.S.

VA Funding Fee Calculator Estimate the VA funding fee and financed loan amount U.S.

VA IRRRL Recoupment Test the 36-month recoupment, rate drop and seasoning rules U.S.

Commercial Real Estate DSCR Build NOI, calculate coverage and test transparent stress scenarios U.S.

Commercial Mortgage Balloon Estimate payments and the remaining balance due at maturity U.S.

Cash-Out Refinance Cash out, new payment, HELOC comparison and seasoning rules U.S.

ARM vs Fixed Mortgage 5/1, 7/1 and 10/1 ARM cost with your caps against a 30-year fixed U.S.

Lease Money Factor to APR Convert a money factor, build the lease payment and compare lease vs buy U.S.

College Cost Lookup Search reported tuition, attendance cost and average net price U.S.

College Graduation Rate Lookup Find reported completion and full-time retention measures U.S.

College Outcomes Lookup See reported post-entry earnings and admission context U.S.

US Contractor License Lookup by State Official register links for 15 states and six full guides U.S.

California Contractor License Lookup CSLB search, 8-digit format check and the $25,000 bond U.S.

Florida Contractor License Search DBPR search; certified vs registered; active, inactive, delinquent U.S.

Texas Contractor License Lookup Which trades TDLR licenses and how to search it U.S.

Washington Contractor License Lookup L&I Verify tool and bond and insurance minimums checker U.S.

Oregon CCB License Lookup CCB search and insurance minimum by endorsement U.S.

Virginia Contractor License Lookup DPOR lookup and Class A, B or C license calculator U.S.

Postsecondary Accreditation Checker See a college's accreditor and status from ED DAPIP data U.S.

IPEDS UNITID Lookup Find the NCES six-digit institution identifier and profile U.S.

Real Estate License Lookup by State: Official Search Links Real estate license lookup by state: official agent and broker search pages for California, Florida, Texas, New York, Illinois and Virginia, plus what to check. US

California Real Estate License Lookup (DRE Public Lookup) California real estate license lookup: how the DRE Public License Lookup works (name, company or License ID), the broker address search, and the official link. US

Florida Real Estate License Lookup (DBPR Licensee Search) Florida real estate license lookup: how to search a licensee in the DBPR licensing portal by name, licence number, city or county, or licence type, with the official link. US

Texas TREC License Lookup: Broker, Agent and Inspector Search Texas TREC license lookup: how the License Holder Search works for brokers, sales agents, inspectors and more, what to compare in the result, and the official link. US

New York Real Estate License Lookup (Salesperson and Broker) New York real estate license lookup: why salespersons and brokers are searched through eAccessNY, not the general licensee search, plus the Open NY dataset link. US

Illinois Real Estate License Lookup (IDFPR eLicense) Illinois real estate license lookup: how to use the IDFPR eLicense Online lookup, choose the REAL ESTATE licence type, and which fields you can search. US

Electrician License Lookup by State: Official Board Searches Electrician license lookup by state: official board and agency searches for Texas, Virginia, North Carolina, Florida, California, Washington and Nevada, with what each covers. US

Plumber License Lookup by State: Official Board Searches Plumber license lookup by state: official board searches for Texas, Virginia, California, Washington, Nevada and Florida, and what to ask before you hire a plumber. US

HVAC License Search by State: Official Board Lookups HVAC license search by state: official lookups for Texas, Virginia, California, Washington, Nevada and Florida, plus what to compare before hiring an HVAC contractor. US

Home Inspector License Lookup by State: Official Searches Home inspector license lookup by state: official searches for Texas TREC, Illinois IDFPR, New York DOS, Virginia DPOR and Florida DBPR, with what to check first. US

TDLR License Search: Status, Number and Renewal Guide TDLR license search explained: what the active-only search shows, the numeric licence number field, the expired-licence renewal window and what it leaves out. US

California DCA License Search: BBC Status Guide California DCA license search for barbers and cosmetologists: what Delinquent means, the 2-year renewal cycle, 5-year cancellation and what DCA excludes. US

MyFloridaLicense Status Meanings: Delinquent, Null & Void MyFloridaLicense status meanings from DBPR’s own glossary: Current, Delinquent, Inactive, Null & Void, and what a primary and secondary status pair tells you. US

NY DOS License Lookup: Who Is and Isn’t Searchable NY DOS license lookup: the 20 licence types on the Division of Licensing Services search, why real estate agents are missing and what active-only means. US

IDFPR License Lookup: Active-Only Search Explained IDFPR license lookup explained: the active-only status filter, 64 licence types, CAPTCHA, timing, and what to do when a new or renewed licence is missing. US

PALS License Verification: Pennsylvania Status Guide PALS license verification explained: which 29 Pennsylvania boards use it, what the search shows, what the state does not define, and who to call for a status. US

UK Self Assessment CalendarPaper, online, balancing-payment and payment-on-account datesUK

Universal Credit Payment Dates Project monthly dates and bank-holiday adjustments from your statement date UK

PIP Payment Dates Project the usual four-week PIP rhythm using the live holiday calendar UK

State Pension Payment Dates Use your NI suffix to see the weekday and projected four-week dates UK

UK Company Filing Deadlines Accounts, confirmation statement, Corporation Tax and return dates UK

Companies House Lookup Validate a company-number shape and open the official live register UK

UK Commodity-Code Lookup Prepare a product brief for HMRC’s official Trade Tariff search UK

UK Tax Refund Estimator Compare tax paid with a simplified 2026–27 Income Tax estimate UK

Visa-Processing Dashboard Track elapsed time and open the current official UKVI processing service UK UK Buy-to-Let Tax CalculatorSection 24 mortgage interest relief, carry-forward and property allowanceUK

Ireland Take-Home Pay CalculatorEnter your gross salary to estimate income tax, USC, PRSI and what lands in your account each year, month and week.Ireland

Irish USC CalculatorSee your Universal Social Charge for 2026 band by band, including reduced rates and the non-PAYE surcharge.Ireland

Ireland Hourly to Salary Calculator After TaxTurn an hourly rate into a yearly salary, then see income tax, USC, PRSI and net pay.Ireland

Ireland Bonus Tax CalculatorCompare your yearly take-home with and without a bonus to see what the bonus is really worth.Ireland

NZ PAYE CalculatorEnter your gross salary to estimate PAYE, the ACC earners’ levy, KiwiSaver and take-home pay.New Zealand

KiwiSaver CalculatorEstimate what goes into your KiwiSaver each year and project the balance with a return you choose.New Zealand

NZ Hourly to Salary Calculator After TaxTurn an hourly rate into a yearly salary and see weekly, fortnightly and monthly take-home pay.New Zealand

NZ Bonus Tax CalculatorSee the tax withheld on a bonus or lump sum and what you take home from it.New Zealand UK Take-Home Pay CalculatorEstimate pay after Income Tax, employee NI and a simple pension contributionUK UK Dividend Tax Calculator2026/27 dividend tax on top of your other income, with the £500 allowanceUK National Insurance CalculatorEstimate standard employee Class 1 NI from annual earningsUK UK Limited Company Take-HomeDirector salary vs dividends after Corporation Tax, NI and dividend taxUK UK Holiday Entitlement Calculator5.6 weeks capped at 28 days, part-year and irregular hoursUK UK SIPP Tax Relief CalculatorRelief at source, extra higher-rate claim and annual allowance checkUK UK Student Loan Repayment CalculatorMonthly and annual repayments for Plans 1, 2, 4, 5 and postgraduate loansUK Statutory Pay CalculatorEstimate statutory maternity, paternity and related family-leave payUK UK Child Benefit Tax Charge CalculatorHigh Income Child Benefit Charge from £60,000, with pension reliefUK Stamp Duty CalculatorEstimate residential SDLT for England and Northern IrelandUK Scotland LBTT CalculatorResidential LBTT, first-time buyer relief and the 8% Additional Dwelling SupplementUK Capital Gains Tax CalculatorEstimate 2026-27 CGT on shares, funds and second propertiesUK UK Inheritance Tax CalculatorEstimate IHT with nil-rate bands, taper and the 36% charity rateUK Pension Lump Sum Tax CalculatorTax-free 25%, Lump Sum Allowance cap and tax on the restUK Sole Trader Tax CalculatorEstimate Income Tax and Class 4 NI from turnover and expensesUK Wales LTT CalculatorResidential Land Transaction Tax, main and higher ratesUK Employer National Insurance CalculatorEmployer NI per employee at 15% above £5,000, with under 21 and apprentice reliefUK Employment Allowance CalculatorHow much of the £10,500 allowance offsets your employer NI billUK Apprenticeship Levy Calculator0.5% of pay bill less the £15,000 allowance, due over £3 millionUK Auto Enrolment Contribution CalculatorMinimum 3% and 5% pension contributions on qualifying earningsUK National Minimum Wage CalculatorMinimum hourly rate by age band and apprentice status from April 2026UK Redundancy Pay Calculator UKStatutory redundancy pay by age and service with the £751 weekly capUK Statutory Notice Period CalculatorEmployer minimum notice from length of service, with an earliest end dateUK

NMC Register CheckSearch a nurse or midwife by PIN or name and read the status iconsUK

GMC Register CheckCheck a GMC number's shape and open the official doctor registerUK

SRA Solicitor CheckCheck a firm or solicitor on the SRA Solicitors RegisterUK

Royal Mail Parcel Size CheckerLetter, Large Letter, Small or Medium Parcel from your measurementsUK

Royal Mail Postage CalculatorUK postage by size and weight, with online and counter pricesUK

Royal Mail Parcel Postbox Size CheckerWill your parcel fit a Royal Mail Parcel Postbox?UK

Royal Mail Tube and Roll Size CheckerLength plus twice the diameter rule for tubes and rollsUK

Evri Parcel Size CheckerCheck Evri weight, length and 245 cm length-and-girth limitsUK

DPD Parcel Size CheckerStandard, shop or freight parcel under DPD UK termsUK

UK Courier Size Limits ComparedRoyal Mail, Parcelforce, Evri, DPD and DHL Express limits for one parcelUK

ICAEW and ACCA Accountant CheckFind the right accountancy directory and what a listing does not proveUK Council Tax Calculator by Band (Band D to Bill)Enter your council’s Band D charge and see the bill for bands A to H (A to I in Wales), using the legal ratios for England, Wales or Scotland.UK Council Tax Bands Wales Calculator (A to I)Welsh bands A to I, the property value for each, and the bill for each band from your council’s Band D charge.UK Scotland Council Tax Band Calculator (A to H)Scottish bands A to H, the property value for each, and the bill for each band from your council’s Band D charge.UK Single Person Discount Council Tax CalculatorCount the adults in your home, say how many are disregarded, and see the discount on your bill.UK Second Home Council Tax Premium CalculatorAdd your council’s second homes premium to a standard bill and see the total, with the national maximum for England and Wales.UK Empty Home Council Tax Premium CalculatorAdd the long-term empty homes premium to a standard bill and check it against the England and Wales maximums.UK Business Rates Calculator 2026/27 (England)Enter a rateable value and see the 2026/27 bill using the five multipliers, the 1p supplement and small business rate relief.UK Small Business Rate Relief Calculator (England)Enter your rateable value to see the percentage of relief, the pounds saved and what is left to pay for 2026/27.UK

Ontario Rent Increase Calculator Apply Ontario's real annual rent-increase guideline to your rent Tenant

BC Rent Increase Calculator Apply BC's real 2026 rent increase limit (2.3%) to your rent Tenant

Manitoba Rent Increase Calculator Manitoba's currently published guideline percentage Tenant

LMR Deposit Interest Calculator Interest owed on an Ontario last month's rent deposit, by year Tenant

PEI Rent Increase Calculator Apply IRAC's real allowable annual rent increase to your rent Tenant

Nova Scotia Rent Increase Cap Calculator Apply Nova Scotia's 5% rent cap (to Dec 31, 2027) to your rent Tenant

New Brunswick Rent Increase Cap Calculator Apply New Brunswick's 3% cap, or up to 9% for approved renovations Tenant

Board Application Fee Lookup What it costs to file with your province's tenancy tribunal Tenant

Security & Damage Deposit Rules Lookup Whether a landlord can charge a deposit on top of rent, by province Tenant

Landlord Entry Notice Requirement Lookup How much notice a landlord must give before entering, by province Tenant

Eviction Notice Timeline Calculator Earliest date a landlord's notice can end a tenancy, by province and reason Tenant

Limitation Period Lookup How long you have to sue, by province and territory Legal

SSAG With Child Support Calculator Canada Spousal support range with children: 40 to 46% of combined net disposable income. Legal

SSAG Income Ceiling and Floor Check Does the $350,000 ceiling or the $20,000 floor change the SSAG range? Legal

Spousal Support Tax Treatment Canada: Deductible? Is spousal or child support deductible or taxable in Canada? Check the CRA conditions. Legal

Separation Cost Split Calculator (Mediator, Lawyer) Split a mediator, lawyer, appraiser or other shared separation bill 50/50, by income or any percentage. Legal

Net Family Property Calculator Ontario Ontario equalization payment: half the difference between two net family properties. Legal

Ontario Matrimonial Home Checklist Rights to the family home in Ontario: possession, selling, mortgaging and designation. Legal

Probate Fee Calculator by Province Estate certificate fees using each province's real formula Legal

Age of Majority by Province 18 or 19, and the Act that sets it, for every jurisdiction Legal

Security Deposit Return Deadline by State (US) Return deadline, deposit cap, interest and penalty for 8 states, with statute links Legal

Rent Increase Notice Period by State (US) Last day to give notice, plus state rent cap flags, for CA, NY, OR, WA and CO Legal

US Patent Maintenance Fee Due Dates Fee windows, surcharge grace periods and days left from a patent's grant date Legal

Direct Sales Cooling-Off Period Lookup How long you have to cancel a door-to-door contract, by province Legal

New Home Warranty Coverage Lookup Ontario's Tarion 1-2-7 vs BC's 2-5-10, year by year Legal

Bardal Factors Calculator Statutory minimum plus a notice range from comparable cases you enter. Legal

Mitigation Offset Calculator How new-job earnings during the notice period reduce damages. Legal

Severance Lump-Sum Tax Withholding CRA 10/20/30% withholding (5/10/15% Quebec) and RRSP rollover. Legal

Constructive Dismissal Checklist Tick what changed and see how it lines up with the Supreme Court test. Legal

Severance Package Offer Comparison Two offers in dollars, against the statutory floor and your target. Legal

Working Notice vs Pay in Lieu Cash, due date and Ontario ESA rules for each route. Legal

Child Support Table Amount Calculator Monthly federal table amount for any province, 2025 tables. Legal

Child Support Calculator Ontario Ontario 2025 table amount and a sample grid by income. Legal

Child Support Calculator BC British Columbia 2025 table amount and sample grid. Legal

Child Support Calculator Alberta Alberta 2025 table amount and sample grid. Legal

Child Support Calculator Manitoba Manitoba 2025 table amount and sample grid. Legal

Child Support Calculator Saskatchewan Saskatchewan 2025 table amount and sample grid. Legal

Quebec Child Support: Quebec Model vs Federal Tables Which rules apply when a parent lives in Quebec. Legal

Section 7 Expenses Split Calculator Share child care, medical and school costs by income. Legal

Shared Parenting Offset Calculator The section 9 set-off at 40% or more parenting time. Legal

Child Support Arrears and Interest Guide Add up unpaid support and see how interest is claimed. Legal

Ontario Judgment Interest Calculator Pre- and post-judgment interest with the official quarterly rate table built in Legal

Lunch & Rest Break Laws by State Enter your shift length to see if a meal or rest break is required, how long and whether paid (US) Employment

Tipped Minimum Wage by State: Cash Wage & Tip Credit State cash wage, maximum tip credit and the employer top-up if tips fall short (US) Employment

Ontario Meal Break Calculator Required 30-minute eating periods and paid hours for a shift, Ontario ESA Employment

BC Final Pay Deadline When final wages are due in British Columbia after termination or resignation Employment

Minimum Wage Calculator Every Canadian minimum wage, and whether yours is legal Employment

Vacation Pay Calculator The percentage you are owed and the weeks you have earned Employment

Stat Holiday Pay Calculator Holiday lists, qualifying rules and what the day pays Employment

Statutory Holiday Dates The real 2026 calendar date for every stat holiday, by jurisdiction Employment

Overtime Pay Calculator Daily and weekly thresholds, and what a long week pays Employment

Termination Notice Period Calculator Minimum notice by length of service, distinct from severance pay Employment

Severance Pay by Province Statutory minimum in dollars for eight provinces, and a check on your offer Employment

Job-Protected Leave Calculator Pregnancy/parental leave job protection length, distinct from EI benefits Employment

Final Pay Deadline by Province When final wages are due after a job ends in 11 Canadian jurisdictions Employment

Meal and Rest Break Rules by Province How long a break is required and after how many hours, for 11 Canadian jurisdictions Employment

Minimum Working Age by Province The youngest legal working age and the limits on young workers, by province Employment

Paid Sick Leave by Province Paid and unpaid sick days and who qualifies, by province and federally Employment

Bereavement Leave by Province Days off after a death and how many are paid, by province and federally Employment

Pay Frequency Rules by Province How often wages must be paid and how soon after a pay period, by province Employment

72-Hour Strike Notice Calculator Earliest legal strike or lockout start, federal and BC Employment

Alberta Strike Vote and Timeline Calculator Cooling-off, vote expiry and 72-hour notice under the Alberta code Employment

Federal Strike Timeline Calculator 21-day cooling-off end and earliest strike day, Canada Labour Code Employment

Strike Vote Expiry Calculator Last date a strike can start after a vote: federal, BC and Alberta Employment

Union Open Period Calculator Raid and decertification windows from agreement start and term, federal and BC Employment

Federal Labour Complaint Deadlines Last day to file unjust dismissal, unpaid wages and union fair representation complaints Employment

USCIS A-Number ValidatorNormalize the published 6–9 digit identifier shape for USCIS entryImmigration

SEVIS ID ValidatorCheck and normalize the N plus up to 11 digit identifier formatImmigration

Super Visa Insurance Cost CalculatorTotal your super visa insurance quotes with IRCC fees and instalmentsImmigration

Super Visa Requirements ChecklistTick through every IRCC super visa requirement for parents and grandparentsImmigration

Super Visa Income Requirement CalculatorSuper visa minimum necessary income by family size, with the 75% optionImmigration

Super Visa vs Visitor Visa ComparisonSuper visa vs visitor visa: stay, validity, host, income and insuranceImmigration

Super Visa Insurance Requirements CheckerTest a policy against IRCC super visa insurance rules before you payImmigration

Super Visa Invitation Letter CheckerCheck a super visa letter of invitation for the items IRCC requiresImmigration

Express Entry CRS Calculator Comprehensive Ranking System score, IRCC's official tables Immigration

Express Entry Draw Tracker Filter recent IRCC rounds by type and CRS score Immigration

Physical Presence Calculator Days toward citizenship (1,095) or PR renewal (730) Immigration

CLB Score Converter IELTS and CELPIP scores to Canadian Language Benchmark Immigration

IELTS Overall Band Score Calculator Average four IELTS section scores with official rounding Immigration

Family Sponsorship Income Calculator Minimum income (LICO) to sponsor parents or grandparents Immigration

NOC 2021 Code Lookup Search all 516 unit groups for your code and TEER Immigration

IRCC Application Fee Lookup Real current fees for PR, citizenship, permits and biometrics Immigration

Citizenship & Sponsorship Fee Calculator Total IRCC fees for family citizenship, sponsorship and PR cards Immigration

Study Permit Eligibility Checker The 5 IRCC requirements, plus the current financial-support figure Immigration

LMIA Exemption Code Lookup Search all 111 International Mobility Program exemption codes Immigration

Express Entry Proof of Funds Calculator Settlement funds required by family size, IRCC's current table Immigration

U.S. Visa Bulletin Priority Date Checker Compare a priority date with the current Department of State cutoff Immigration

USCIS Fee Checker Check current USCIS fees for common forms and filing variants Immigration

I-864 Income Requirement Calculator Minimum sponsor income at 125% of the 2026 poverty guidelines, with shortfall and assets Immigration

Substantial Presence Test Calculator Apply the IRS 31-day and 183-day weighted test to your days in the U.S. Immigration

H-1B Cost to Employer Calculator Line-by-line USCIS fees for an H-1B petition from the 10/16/26 fee schedule Immigration

H-1B $100,000 Fee Applicability Checker Whether the $100,000 H-1B payment covers a petition, with dated court and proclamation status Immigration

OPT Unemployment Days Calculator Count OPT unemployment days against the 90-day and 150-day limits Immigration

N-400 Early Filing Date Calculator Earliest day to file Form N-400 under the 90-day early filing rule Immigration

Green Card Priority Date Calculator How far a priority date is behind the October 2026 Visa Bulletin cutoff Immigration

USCIS Receipt Number Checker Check a receipt number is 3 letters + 10 digits (format only) Immigration

USCIS Processing Time Dashboard Historical national medians for selected U.S. immigration forms U.S. Immigration

Visa Bulletin Movement History Final Action Date movement for selected family and employment series U.S. Immigration

H-1B Wage & Employer Lookup DOL LCA wage bands by employer or job family U.S. Employment

CSS Gradient Generator CSS gradient generator Color

Skin Undertone Test Warm, cool, neutral or olive quiz plus hue angle Color

CSS Box Shadow Generator Multi-layer shadows and border radius, copy CSS Color

Color Palette Generator Color palette generator Color

Color Picker Color picker and converter Color

Contrast Checker WCAG color contrast checker for text and backgrounds Color

APCA Contrast Checker APCA Lc beside the WCAG 2.2 contrast ratio for any two colors Color

Hair Colour Level Finder Find your hair level 1-10 and the pigment that shows when lifting Color

Shirt and Tie Color Combinations Ranked tie colours for your suit and shirt, with value contrast Color

What Colour Goes With It? Clothing colour matcher: neutrals, analogous and complementary matches on an outfit mock-up Color

Color Blindness Simulator See a color the way protanopia/deuteranopia/tritanopia see it Color

Toner Picker for Orange, Yellow and Brassy Hair Neutralising colour from the colour wheel, and when to lift first Color

12-Season Colour Analysis Quiz 12 questions, no photo or email: your colour season, a runner-up and palettes Color

Colour Season Palette Compare Compare any two of the 12 seasons with measured lightness, chroma and warmth Color

Skin Tone Hex Finder Nearest Monk Scale swatch, depth and undertone for a hex code Color

Hex to RGB Converter HEX to RGB with a live swatch and copy buttons Color

RGB to Hex Converter RGB to HEX with a live swatch and copy buttons Color

Hex to HSL Converter HEX to HSL with a live swatch and copy buttons Color

HSL to RGB Converter HSL to RGB with a live swatch and copy buttons Color

RGB to HSL Converter RGB to HSL with a live swatch and copy buttons Color

RGB to CMYK Converter RGB to CMYK with a live swatch and copy buttons Color

CMYK to RGB Converter CMYK to RGB with a live swatch and copy buttons Color

Hex to CMYK Converter HEX to CMYK with a live swatch and copy buttons Color

CSS Color Name to Hex Converter CSS color name to HEX with a live swatch and copy buttons Color

Best Colours to Wear Flattering clothing colours for your hair, eyes and skin, with the method shown Color

Embeddable Widgets Ad-free iframe calculators and checkers with a copy-paste code generator Dev

Geohash Encoder & Decoder Decode geohashes to a box and centre, encode lat/long, see neighbours Dev

DMS to Decimal Degrees Converter Convert DMS, decimal degrees and decimal minutes; validate lat/long Dev

JSON Diff and Compare Compare JSON ignoring key order, changes by path, RFC 6902 patch Dev

Code Diff Checker Code diff checker Dev

AWS S3 Egress Cost Calculator Monthly S3 internet data transfer cost by tier with the 100 GB free allowance Dev

S3 Storage Class Cost Comparison Monthly cost of every S3 storage class for your data size, requests and retrievals Dev

AWS Lambda Cost Calculator Monthly Lambda cost from invocations, duration and memory, x86 or Arm Dev

EC2 vs Lambda Break-Even Calculator Invocations per month where Lambda costs the same as an always-on EC2 instance Dev

CloudFront vs S3 Transfer Cost Calculator Monthly cost of serving files from S3 directly vs through CloudFront Dev

Cloudflare R2 vs S3 Cost Calculator Monthly cost of Cloudflare R2 vs S3 Standard for storage, operations and egress Dev

AWS NAT Gateway Cost Calculator Monthly NAT gateway hourly and per-GB cost, and the saving from gateway endpoints Dev

DynamoDB On-Demand vs Provisioned Calculator Monthly DynamoDB cost on-demand vs provisioned, with break-even utilisation Dev

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CSS Formatter & Beautifier Format, beautify, and minify CSS code instantly Dev

SQL Formatter & Minifier Format or minify SQL for standard, PostgreSQL, MySQL and SQLite Dev

HTML Formatter & Beautifier Format, beautify, and minify HTML code instantly Dev

GraphQL Formatter & Minifier Pretty-print or minify GraphQL queries and SDL Dev

JavaScript Formatter & Beautifier Format, beautify, minify, and syntax-check JavaScript code Dev

TypeScript & TSX Formatter Format TypeScript and TSX with Prettier: indent, semicolons, quotes, print width Dev

JSON Formatter & Validator Format, beautify, minify, and validate JSON online Dev

JSON Viewer Open JSON as a collapsible tree and copy the path of any node Dev

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MD5 Hash Generator MD5 checksum of text or a file as hex or Base64 Dev

SHA-1 Hash Generator SHA-1 hash of text or a file as hex or Base64 Dev

SHA-256 Hash Generator SHA-256 hash of text or a file as hex or Base64 Dev

SHA-384 Hash Generator SHA-384 digest of text or a file as hex or Base64 Dev

SHA-512 Hash Generator SHA-512 digest of text or a file as hex or Base64 Dev

HMAC Generator HMAC-SHA256, SHA-1, SHA-384 and SHA-512 from a secret key Dev

Hash Generator Generate SHA-1, SHA-256, and SHA-512 hashes for text or files Dev

Password Generator Strong random passwords, 8 to 128 characters, with entropy in bits Dev

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JSON to JSON Schema Generator Infer a draft 2020-12 schema from sample JSON Dev

PKCE Generator code_verifier and S256 code_challenge (RFC 7636) Dev

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SVG Optimizer SVGO in your browser with before/after size and visual diff Dev

CSS Validator CSS validator Dev

HTML Validator HTML validator Dev

JSON Validator JSON validator Dev

XML Formatter Pretty-print XML with 2, 4 or tab indent; keeps attributes, CDATA and comments Dev

XML Validator and Formatter Check XML well-formedness with line and column errors, pretty-print, minify or convert to JSON Dev

Cron Expression Parser Validate a cron expression and see its next run times Dev

CSV Validator Check CSV structure (RFC 4180) before you import it Dev

UUID Validator Validate a UUID, decode its version and variant, read v1/v6/v7 timestamps Dev

CSS Specificity Calculator Get the (A,B,C) specificity of CSS selectors and rank the winner Dev

Web App Manifest Checker Check manifest.json types, enums, icons, start_url and scope Dev

Semver Validator Validate a SemVer 2.0.0 version and compare two versions Dev

JSON Schema Validator Check JSON against a draft-07, 2019-09 or 2020-12 schema and list every error Dev

Docker Image Name Validator Check an image reference and split it into registry, repo, tag and digest Dev

Kubernetes Name Validator Check a Kubernetes object name against the DNS name rules Dev

Hostname & FQDN Validator Check a hostname against the label, length and character rules Dev

BCP 47 Language Tag Checker Check a language tag is well-formed under RFC 5646 and see each subtag Dev

BOLT11 Lightning Invoice Decoder Decode a Lightning invoice: amount, expiry, hashes and route hints Dev

SPF Record Syntax Checker Check an SPF record against RFC 7208 and count its DNS lookups

OpenAPI Validator Check an OpenAPI 3.0 or 3.1 file against the official schema Dev

Email Accessibility Checker Paste HTML email and check WCAG 2.2 rules and RFC 8058 unsubscribe headers

Markdown Linter Check Markdown against markdownlint rules, with fix hints Dev

YAML Validator & Formatter Find YAML syntax errors, re-format and convert to JSON Dev

CSS Custom Property Auditor Find unused, undefined and circular CSS variables Dev

DMARC Record Validator Check a DMARC TXT record's tags against RFC 7489 Dev

CAA Record Checker & Generator Check CAA issue, issuewild and iodef records against RFC 8659, or build them Dev

DKIM Key Record Validator Check a DKIM TXT record and read its public key size Dev

XPath Tester and XML Path Finder Test XPath 1.0 expressions on pasted XML and click any node to get its path Dev

Binary Fraction Converter Decimal to binary fractions, exact repeating bits, float64 error Dev

IEEE 754 Float Converter Decimal to float32/float64 bits and hex, exact stored value, 0.1 + 0.2 Dev

TOML ↔ JSON Converter Convert TOML v1.0.0 to JSON and back, with line-numbered parse errors Dev

JSON to YAML Converter Convert JSON to YAML or YAML to JSON, ambiguous values quoted Dev

Hex to Decimal Converter Convert hex numbers of any size to decimal Dev

Decimal to Hex Converter Convert decimal numbers of any size to hex Dev

CSV to JSON & JSON to CSV Converter Convert between JSON and CSV in your browser Dev

Gray Code Converter Binary to Gray code and back, with XOR working and reflected Gray table Dev

Two's Complement Calculator Decimal to two's complement, binary to signed decimal, add/subtract with overflow Dev

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BCD Converter Decimal to packed or unpacked BCD and back, with BCD addition Dev

Signed Magnitude Converter Sign-and-magnitude binary compared with one's and two's complement Dev

Excess-N Converter Biased and offset binary, excess-127 and excess-3 code Dev

Bitwise Calculator AND, OR, XOR, NOT and shifts at 8/16/32/64 bits, signed and unsigned Dev

Number Base Converter Binary, octal, decimal, hex and any base 2 to 36, with fractions, big integers and steps Dev

Hex Calculator Add, subtract, multiply and divide hexadecimal, binary, octal or decimal numbers Dev

Binary Arithmetic Calculator Add, subtract, multiply and divide binary with step-by-step working Dev

MIME Type & Extension Mapper Map common file extensions to MIME types and back Dev

HTTP Status Codes Lookup Search every registered code: meaning, caching, retry and fix Dev

Locale Number & Date Format Tester Compare Intl number, date, plural and relative-time output across locales

chmod Calculator Octal, symbolic and checkbox file permissions with the command Dev

Query-string Parser & Builder Parse and build URLs while preserving duplicate keys Dev

JSON Lines / NDJSON Validator Validate records by line and convert JSON arrays Dev

JSON Escape / Unescape Escape text into a JSON string and reverse it with error position Dev

JSONPath Tester Run RFC 9535 queries and see normalized paths Dev

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CSS Clamp Calculator Build responsive clamp values with a live preview Dev

Unicode Confusable & Homograph Detector Find lookalike characters, mixed scripts and UTS #39 skeletons; compare two strings Dev

Backup Window and Replication Lag Catch-up Calculator Estimate how long a database backup takes from data size and throughput, and how long a lagging replica needs... Dev

Bloom Filter Calculator: Size, Hashes and False Positives Calculate Bloom filter size in bits and bytes, the optimal number of hash functions, and the false positive... Dev

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Connection Pool Size Calculator: Cores x 2 + Spindles Work out a database connection pool size with the (core_count * 2) + effective_spindle_count formula and split... Dev

DynamoDB Capacity Calculator: RCU, WCU and Cost Calculate DynamoDB read and write capacity units from item size and request rate, then compare monthly... Dev

Kafka Partition Calculator: Count and Retention Storage Calculate Kafka partitions with max(t/p, t/c) from target, producer and consumer throughput, then estimate... Dev

Postgres Table Size Calculator: Row Size and Pages Estimate PostgreSQL row size, rows per 8 kB page and total table size from your column types, with alignment... Dev

Redis Memory Calculator: Size maxmemory for Your Keys Size Redis memory from your key count and the MEMORY USAGE bytes of a sample key, with growth, maxmemory... Dev

UUID vs Bigint Primary Key Overhead Calculator Compare the extra storage of UUID against bigint primary keys in PostgreSQL and MySQL InnoDB, counting the... Dev

H1 Checker Check H1 and heading tags: count, length, empty and skipped levels SEO

Canonical Tag Checker Check rel=canonical for duplicates, relative URLs and fragments SEO

Robots Meta Tag Checker Validate noindex, nofollow and snippet directives in robots meta tags SEO

Meta Description Length Checker Count meta description and title characters with a snippet preview SEO

Anchor Text Checker Find empty and generic anchor text and rel nofollow links SEO

Image Alt Text Checker Find missing, empty and filename-style image alt text SEO

Open Graph Checker Validate Open Graph tags against the ogp.me protocol SEO

HTML Head Diff Checker Diff staging vs production head: noindex, canonical, hreflang, OG, JSON-LD SEO

HTML Landmark Checker List ARIA landmarks and find missing or duplicate ones SEO

Heading Anchor & ID Generator Collision-safe heading slugs (GitHub-style or HTML ids) with anchor markup SEO

Heading Outline Diff Compare old and new H1-H6 outlines: added, removed, moved

JSON-LD Validator Check JSON-LD syntax and Google required properties SEO

Hreflang Checker Check international SEO alternates and generate tags SEO

HTTP Link Header Parser Parse RFC 8288 Link headers: rel, hreflang, title* SEO

Keyword Density Checker Keyword density analyzer SEO

Meta Tag Analyzer Meta tag analyzer SEO

Next.js Metadata Previewer Paste a metadata export, see the head tags it emits SEO

Social Preview Checker Preview social cards and audit Open Graph tags SEO

Meta Tag Generator Generate SEO-optimized meta tags instantly SEO

Readability Checker Check your content SEO

Robots.txt Generator Create robots.txt files instantly to control search engine SEO

Robots.txt Tester Test crawler/path rules with exact RFC 9309 winning lines SEO

XML Sitemap Validator Validate local sitemap structure, URLs, dates, hosts, and limits SEO

Schema.org Markup Generator Generate Schema.org JSON-LD markup for rich snippets SEO

XML Sitemap Generator Generate XML sitemaps instantly SEO

htaccess Redirect Generator Apache 301 redirects, HTTPS and www rules with loop checks SEO

UTM Link Builder Build campaign URLs with UTM tags and naming checks SEO

URL Slug Generator Generate SEO-friendly URL slugs instantly SEO

Table of Contents Generator Build a nested TOC with anchor links from HTML or Markdown headings SEO

Title Tag Checker Check and optimize your title tags for SEO SEO

YouTube Title, Description & Tags Checker Check YouTube title, description and tag limits with live counters SEO

Word Count Checker Count words and characters, see keyword density and length limits SEO

Words to Pages Calculator Estimate pages from words (or words from pages) by font, spacing and margins SEO

Postal Address Formatter Format a copy-ready mailing label for four common destinations Generators

Bill of Sale Generator Bill of sale generator Generators

Business Card Generator Business card generator Generators

Business Plan Generator One-page business plan generator Generators

Contractor Agreement Generator Independent contractor agreement generator Generators

Estimate Generator Estimate generator Generators

Invoice Generator Invoice generator Generators

PDF Merge Combine PDFs locally — up to 20 files and 500 pages Generators

PDF Split Extract selected pages locally — up to 500 pages Generators

PDF to JPG Convert PDF pages to JPG images privately in your browser Generators

JPG to PDF Combine up to 50 JPG images into a local PDF Generators

PDF Metadata Remover Strip Author/Title/Producer — no file limit, free Generators

Lease Agreement Generator Residential lease agreement generator Generators

NDA Generator Mutual non-disclosure agreement generator Generators

Offer Letter Generator Employment offer letter generator Generators

Promissory Note Generator Promissory note generator Generators

Purchase Order Generator Purchase order generator Generators

Quote Generator Quote generator Generators

Receipt Generator Receipt generator Generators

PDF Password Protect Add a password to a PDF, right in your browser Generators

PDF Remove Password Remove a password from a PDF you own Generators

Office to PDF Converter Convert Word, Excel, and PowerPoint files to PDF Generators

Resume Builder Build a polished resume PDF in minutes Generators

Cover Letter Generator Create a matching cover letter PDF Generators

Pdf Page Organizer Reorder, rotate, or delete PDF pages Generators

Sign Pdf Draw or type a signature onto a PDF Generators

Pdf Compressor Shrink a PDF's file size Generators

Pdf Image Converter Convert PDF pages to JPG, or images to a PDF Generators

Pdf To Word Converter Extract text from a PDF into an editable file Generators

Email Signature Generator Outlook-safe, table-based HTML signature Generators

Receipt Ocr Scanner Scan a receipt photo and pull out the total Generators

Image Format Converter Convert images between JPG, PNG, WebP, GIF, and BMP formats Image

Image Compressor Compress images online for free Image

Image Cropper Crop images online for free Image

Image Filters Apply professional filters to your images for free Image

Image Resizer Resize images online for free Image

Image Rotate & Flip Rotate and flip images for free Image

Image Watermark Add watermarks to your images for free Image

Photo Metadata Viewer See EXIF/GPS data a photo carries — batch supported, free Image

Photo Metadata Remover Strip EXIF/GPS before sharing — batch supported, free Image

Signature Generator Draw or type a signature, download as PNG or SVG Image

Favicon & PWA Icon Generator Generate a full favicon and PWA icon set from one image Image

Meme Generator Add top/bottom text to an image, no watermark Image

Exposure Value (EV) Calculator EV and EV100 from aperture, shutter speed and ISO, with equivalent shutter speeds Image

Equivalent Exposure Calculator Swap aperture, shutter speed and ISO and keep the same exposure Image

ND Filter Exposure Calculator Long-exposure shutter speed for ND stops, density or filter factor Image

Depth of Field Calculator Near and far focus limits by sensor, focal length, aperture and distance Image

Hyperfocal Distance Calculator Where to focus for sharpness to infinity, with a table by aperture Image

Crop Factor and Equivalent Focal Length Full-frame equivalent focal length and aperture, plus field of view Image

Megapixel and Print Size Calculator Megapixels, aspect ratio and print size from pixels, or pixels for a print Image

A4 Size in Pixels Calculator Pixel size of A4, Letter and other paper sizes at any DPI Image

A4 to Letter Converter Size difference and the scale that fits A4 on Letter Image

Envelope Size for Paper Calculator Which envelope fits A4 or Letter paper, flat or folded Image

Photo Print Crop Calculator What a 4x6, 5x7 or 8x10 print crops off your photo Image

Photo Print Sizes Chart Photo print sizes in inches, mm and pixels, with crop by ratio Image

Poster Resolution Calculator Pixels a poster needs by size and viewing distance Image

Business Card Size Chart Business card, ID card and postcard sizes in mm, inches and pixels Image

Sheet Layout Calculator How many cards, flyers or photos fit on a sheet Image

Poster Tiling Calculator How many A4 or Letter sheets it takes to tile a poster Image

Video Compressor Compress a video in your browser, no upload Video

Video Trimmer Cut a video down to the clip you need Video

Video to GIF Converter Turn a video clip into a GIF Video

Subtitle Re-Syncer Fix drifting SRT/VTT subtitles Video

Screen Recorder Record your screen, no watermark Video

Video Aspect Ratio Calculator Solve a missing width or height from a ratio Video

Video Bitrate Calculator Target file size + duration → bitrate Video

Shutter Angle and 180-Degree Rule Calculator Shutter speed from frame rate and shutter angle, and back Video

Time-Lapse Calculator Interval, frames, shooting time and clip length for a time-lapse Video

Video to MP3 / Audio Extractor Pull the audio track out of a video file Audio

Text to Speech Reader Read text aloud in your browser, free Audio

Text to Speech Voices Guide See which voices your browser has Audio

Pronunciation Checker Hear a word in several voices Audio

LUFS Target Gain Calculator Gain to hit -23 LUFS or -24 LKFS with a true-peak check Audio

Batch Audio Trimmer Converter Trim and convert several audio files at once Audio

BPM Delay Time Calculator Delay and reverb times in ms for every note value, with tap tempo Audio

Chord Transposer and Capo Calculator Transpose chord charts to a new key and see the capo shapes Audio

Audio File Size Calculator WAV or MP3 size from sample rate, bit depth, channels or bit rate Audio

Add and Subtract Decibels Calculator Combine several dB levels into one total, or subtract background noise from a reading Audio

dB to Power and Voltage Ratio Converter Convert dB to power, voltage or sound-pressure ratios and back Audio

Noise Exposure Allowed Time Calculator (NIOSH and OSHA) Daily allowed exposure time at any dBA, NIOSH 85/3 dB and OSHA 90/5 dB side by side Audio

Noise Dose and 8-Hour TWA Calculator Noise dose percent and 8-hour TWA from several levels and durations, NIOSH and OSHA Audio

Earplug NRR Real-World Calculator Real-world noise reduction from an NRR: OSHA (NRR - 7) and NIOSH 25/50/70% derating Audio

Sound Distance Attenuation Calculator (Inverse Square Law) Sound level at a new distance, or distance for a target level, by the inverse square law Audio

Headphone Safe Listening Time Calculator Headphone level from sensitivity and drive power, with NIOSH and OSHA daily listening time Audio

RT60 Reverberation Time Calculator (Sabine) RT60 reverberation time from room size and absorption (Sabine), and absorption needed for a target Audio

Speaker Placement Triangle Calculator Stereo speaker spacing and toe-in angle for an equilateral listening triangle Audio

Guitar Fret Position Calculator Distance from the nut to every fret for any scale length, in inches or mm Audio

Guitar String Tension Calculator Estimate string tension in pounds from scale length, pitch and string gauge Audio

Piano Key Frequency Chart Hz for all 88 piano keys with note names and key numbers Audio

Note Frequency and Cents Calculator Note to Hz, Hz to nearest note with cents off, and cents between two frequencies Audio

Guitar Tuning Frequency Chart String notes and Hz for standard, drop D, DADGAD, open G, open D and lowered tunings Audio

Speaker Impedance Calculator Total ohms for speakers wired in series or parallel, with the power each one gets Audio

Speaker SPL and Amp Watts Calculator dB SPL from speaker sensitivity, watts and distance, or watts for a target level Audio

Room Mode Calculator Resonant frequencies of a rectangular room from length, width and height Audio

Bars to Time Calculator Song length from bars, BPM and time signature, or the bars and BPM that fit a length Audio

Practice Tempo Ladder Calculator Metronome speed-up plan from a start BPM to a target, with reps and time per step Audio

Tap Tempo BPM Counter Tap along to a song to find its BPM, with half and double time Audio

Pitch Shift and Speed Calculator Semitones to speed percent and ratio, or the pitch change between two speeds Audio

Scale Finder Notes, degrees and step pattern for major, minor, modes, pentatonic and blues scales Audio

Chord Notes Finder Notes in any major, minor, seventh, sus, dim, aug or power chord Audio

Circle of Fifths and Key Signature Finder Key signature, relative key, neighbouring keys and diatonic chords for any key Audio

Musical Interval Calculator Name the interval between two notes, or find the note an interval above or below a root Audio

Harmonic Series Calculator Harmonic and overtone frequencies from a fundamental, with the nearest note and cents Audio

Nashville Number System Converter Convert chord charts to Nashville numbers in any major key and back Audio

IP Address Lookup IP address lookup Security

Password Strength Checker Password strength checker Security

Bitcoin Address Validator Base58Check, Bech32 and Bech32m checksum check Security

Cache-Control Analyzer Explain Cache-Control directives, conflicts and freshness lifetime Security

TLS Cipher Suite Checker Look up cipher suites in the IANA registry and flag weak tokens Security

Ethereum Address Checksum Check or convert an EIP-55 mixed-case address checksum Security

Password Entropy Calculator Entropy in bits for passwords and Diceware passphrases Security

Diceware Passphrase Generator Random word-based passphrase Security

16-Character Password Generator Random 16-character passwords that clear NIST’s 15-character minimum Security

Random PIN Generator Random 4 to 12 digit PINs, with the option to skip 0000 and 1234 Security

Wi-Fi Password Generator Strong random Wi-Fi password, 8 to 63 characters, easy to type Security

PGP Key Fingerprint Calculator GPG fingerprint and key ID from an armored public key Security

Content-Security-Policy Generator Generate and validate CSP response headers locally Security

Permissions-Policy Generator Control browser feature delegation with allowlists Security

Security Headers Analyzer Check pasted response headers against OWASP guidance Security