Volumetric Weight Calculator

How volumetric weight works

Air carriers price shipments on the space they take up as well as how heavy they are. A large but light box (like a duvet) costs more to fly than its scale weight suggests, so carriers calculate a “volumetric” (or “dimensional”) weight from its size.

Volumetric weight (kg) = (Length × Width × Height in cm) ÷ divisor

The divisor depends on the carrier and service — 5000 is the most common for international air express. You’re charged on the chargeable weight: whichever is greater, your actual weight or the volumetric weight.

This tool gives an estimate for planning only. Your final quote from Cargo Max reflects the carrier’s exact rounding and rates.