Freight calculators that just work.

Free, fast, no sign-up. Cube a shipment with the CBM calculator, find its chargeable weight or LTL freight class, plan a container load, or look up any Incoterm — all in one place.

Prepare a carrier-ready quote request when the numbers are ready, or embed a calculator on your own site.

Volume & loading

Cube your shipment and see how it fits.

CBM Calculator

Cubic meters from L × W × H × quantity, in cm, mm, in or ft.

Container Loading

Estimate how many cartons fit in a 20ft, 40ft or 40HC container.

Pallet Calculator

Cartons per pallet and pallets per container, by footprint fit.

Truck Loading

Pallets per 53ft van, trailer, pup or box truck — with double stacking.

Weight & class

What carriers actually bill you for.

Volumetric Weight

Dimensional weight from shipment size and the carrier divisor.

Chargeable Weight

The greater of actual and volumetric weight — what you pay for.

Freight Class

Density-based NMFC freight class from weight and dimensions.

Reference

The rules behind the numbers.

Incoterms 2020

All 11 terms: who pays, who insures, where risk transfers.

Get the Freight Math Cheat Sheet

Every formula on one printable PDF — CBM, volumetric weight, carrier divisors, container capacity, boxes per pallet, and the full freight class table. Occasional shipping-math updates, no spam.