How dimensional weight works
Dimensional weight converts the package volume into a reference weight. Compare it with the scale weight; carriers commonly bill the higher value.
Dimensional Weight Calculator
Compare actual, dimensional, and billable weight before checking a carrier quote.
Package dimensions
Carrier reference comparison
Formula references reviewed 30 July 2026. Carrier rules, rounding, service, destination, and rate type can change; verify before purchase.
How dimensional weight works
Assumptions
Formula references reviewed 30 July 2026. Carrier rules, rounding, service, destination, and rate type can change; verify before purchase.
Frequently asked questions
Dimensional weight?
Billable weight is the larger of actual and dimensional weight. This tool does not estimate shipping prices.
Use my divisor?
Enter the divisor from your carrier contract or rate sheet.