USPS shipping calculator
USPS dimensional weight calculator.
Estimate the billable weight of a USPS package from its dimensions and actual scale weight.
Package details
Result
USPS note
This page shares the shipping engine with the carrier comparison tool. Its default is a USPS divisor of 166 and a one-cubic-foot threshold, but USPS pricing can depend on the service and package dimensions. Confirm current details at USPS Notice 123.