UPS Dimensional Weight Calculator
Estimate UPS dimensional weight and billable weight before comparing service options, packaging choices and surcharge exposure.
Divisors auto-fill from tracked public carrier rules and can be overwritten. UPS commonly uses divisor 139 for inch/lb dimensional weight. Negotiated rates and service rules may vary.
Your calculation: 16 x 12 x 10 / 139 = 13.82 lb.
UPS formula example
Dimensional weight = length x width x height / divisor.
A 20 x 14 x 8 inch carton has 2,240 cubic inches. With divisor 139, dimensional weight is 16.12 lb. Compare that value with the actual scale weight before quoting.
What divisor does the UPS calculator use?
The default UPS inch/lb divisor in ShipCalc is 139. You can edit the divisor when your UPS service or contract uses a different rule.
Should I check UPS surcharge ZIPs too?
Yes. Dimensional weight estimates billable weight, while UPS surcharge ZIP checks help screen delivery area, extended area or remote area surcharge exposure.