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Dimensional Weight Calculator
Dimensional Weight Calculator
Work out the DIM weight carriers actually bill you for.
Length (in)
Width (in)
Height (in)
Actual weight (lb)
Carrier
USPS (divisor 166)
UPS (divisor 139)
FedEx (divisor 139)
Calculate billable weight
Accuracy note:
Divisors: USPS 166 (only above 1 cu ft), UPS and FedEx 139 (retail). Based on USPS retail prices, January 18, 2026 rates (checked August 2026).
