Published calculation sequence
UPS instructs shippers to measure the package, round each dimension up to a whole inch, multiply the three sides, divide by the applicable factor, and increase any fractional dimensional weight to the next whole pound.
- Daily Rates: divisor 139
- Retail Rates: divisor 166
- Compare the result with actual weight
Account terms still control
A negotiated contract or specific service may differ. Treat the public rule as a planning baseline and verify the final value in your UPS account.