UPS is unusual in maintaining two distinct divisors: 139 for account-holder Daily Rates (most commercial shippers) and 166 for walk-in Retail Rates. The math is the same; the divisor reflects the customer relationship.
Awaiting dimensions. Enter package details to compute billable weight.
| Service | Imperial (in/lb) | Metric (cm/kg) | Notes |
|---|---|---|---|
| Ground (Daily Rates · account) | 139 | 5000 | All packages |
| Ground (Retail Rates · walk-in) | 166 | 5000 | All packages |
| Air (2nd Day, Next Day) | 139 | 5000 | All packages |
| Ground Saver (formerly SurePost) | 139 | 5000 | Qualifying packages |
| International (all services) | 139 | 5000 | All packages |
Established business accounts with negotiated rates, reliable Ground service
One-off shipments (Retail Rates are pricier than alternatives)
Run an actual rate quote on UPS's official site to confirm pricing and check current surcharges.
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UPS uses a divisor of 5000 cm³/kg (metric) or **139 / 166 in³/lb** (imperial). The DIM weight formula is volume divided by this number, rounded up to the nearest whole pound or kilogram.
UPS applies dimensional weight to packages above No minimum. The billable weight is always the greater of the actual weight or the calculated DIM weight.
Use right-sized packaging — every cubic inch you save is divided by the divisor and removed from your billable weight. Avoid excessive void fill and consider custom box sizes for products you ship frequently. For occasional shippers, use the calculator above to test packaging changes before you commit to new materials.