UPS bills the greater of actual weight and dimensional weight. Which divisor applies depends on your rate type: Daily Rates divide the volume by 139, Retail Rates by 166. Pick your rate type, enter the packed size and weight, and this page works out the billable weight. To compare UPS with the other carriers at once, use the dimensional weight calculator.
Fractions work: 27½ or 3-1/8. Results update as you type.
Rate type
Threshold meter
If the carrier's bill differs from this estimate, gather this evidence before you dispute:
Daily Rates (account rates with scheduled pickup) divide by 139. Retail Rates (counter rates) divide by 166 for domestic shipments. Retail export shipments are rated under the Daily guide and use 139.
UPS Rate and Service Guide 2026Since August 18, 2025, UPS increases each fraction of an inch to the next whole inch, with a 1-inch minimum per side, then rounds the DIM weight up to the next whole pound.
UPS package dimensions and weight pageA longest side over 48 in triggers Additional Handling and a 40 lb minimum billable weight. Length plus girth over 130 in makes the package a Large Package with a 90 lb minimum.
UPS Rate and Service Guide 2026The same package can bill differently somewhere else. The dimensional weight calculator compares all five side by side, and the divisors dataset lists every rule in one table.
If you ship on an account with scheduled pickups, you are on Daily Rates and the divisor is 139. If you pay counter rates at a UPS Store or customer center, Retail Rates apply and the domestic divisor is 166.
Yes. UPS rounds each dimension up to the next whole inch, multiplies the three, divides by the divisor, and rounds the result up to the next whole pound. The actual weight is also rounded up.
UPS re-measures packages in its network. If its dimensioner reads larger than what you entered, UPS bills on its reading and posts a shipping charge correction. Disputes go through the UPS Billing Center, within 180 days of the invoice under UPS Tariff section 53.1.
Rules last checked November 12, 2026 · How we check every figure