Josh Liljenquist

Shipping and logistics arithmetic

Volumetric Weight Calculator

Enter the divisor supplied by your carrier or service to calculate volumetric weight. The higher-of comparison is arithmetic, not a billing determination.

Enter measurements

The divisor is required and has no universal default. Changing the unit system changes the meaning of the entries; re-enter values in the displayed units.

Calculated result

Enter values and select Calculate.

Method

Package volume = length × width × height in the selected dimension unit. Volumetric weight per package = package volume ÷ your entered divisor. Multiply by the number of identical packages for the total. The divisor units must match the selected system: cm³/kg or in³/lb. No carrier rule is preselected.

Worked example

Using a hypothetical, user-entered divisor of 5,000 cm³/kg, a 40 × 30 × 20 cm package has a volume of 24,000 cm³ and a volumetric weight of 4.8 kg. The example is not a statement of any carrier’s current rule.

Carrier and billing limits

Actual service rules can specify different divisors, rounding, minimums, package aggregation, and other charges. The optional higher-of result compares two entered numbers mathematically; it is not billable weight. This calculator does not estimate rates, surcharges, or service eligibility. Confirm the divisor and applicable rules with your carrier.

Privacy and related tools

Measurements stay in this browser tab. The calculator does not upload them, save them to browser storage, or put them in the URL. Browse all calculators.