Treasure hoard coin calculator.

What this calculator does

Players want to count a pile, not read a total. A 1,000 gp hoard handed over as one line of text feels like a spreadsheet; handed over as 10,000 copper, 4,000 silver, 450 gold and 5 platinum it feels like a dragon's floor. The SRD defines the coins and their exchange rates but does not give a formula for how many of each a hoard holds, so this tool uses an explicit, adjustable rule instead of pretending there is an official one.

You pick what share of the value is carried in each coin type. The tool turns each share into whole coins, passes any fractional remainder down to the next smaller coin, and puts the last few copper pieces in at the end so the total matches your number to the copper.

Worked example

For a 1,000 gp hoard with the "Mostly silver and gold" mix (10% copper, 40% silver, 45% gold, 5% platinum): copper gets 100 gp of value, which is 10,000 cp; silver gets 400 gp, 4,000 sp; gold gets 450 gp, 450 gp; platinum gets 50 gp, 5 pp. That is 14,455 coins, which weigh 289.1 lb at 50 coins per pound. The same 1,000 gp in the gold-and-platinum-heavy mix is only 1,585 coins (31.7 lb), and paid entirely in gold it is 1,000 coins (20 lb). The mix changes the weight a lot while the value stays the same.

How it is calculated

Total value is converted to copper pieces (1 gp = 100 cp, from the SRD exchange table). Each coin type receives value equal to total times its share divided by the sum of the shares. That value is turned into whole coins of that type, rounding down; whatever value is left over is carried to the next smaller coin type, so nothing is lost. Any final remainder is added as copper. Weight is coin count divided by coins per pound. The SRD exchange rates used are 1 pp = 10 gp, 1 gp = 10 sp, 1 sp = 10 cp and 1 ep = 5 sp.

The "Coinage" and "Standard Exchange Rates" sections of the Equipment chapter in SRD 5.1. The coin mixes are this site's presets and are labelled as such. Last checked 2026-10-26.

What this does not cover

• Coin share presets are this tool's own rule of thumb, not figures from the rules. Use the custom shares to match your table.
• Gems, art and magic items are not coins. Subtract their value before entering the coin total.
• SRD 5.1 describes electrum and platinum as unusual coins that sometimes appear in hoards, so the presets keep electrum at zero. Add electrum with custom shares if your setting uses it.
• Different editions and older games use other coin weights; change the coins-per-pound field to match yours.