CBM Calculator logoCBM Calculator

Ton to CBM Converter

Use this when purchase orders or shipping documents list weight in metric tons, but you need to estimate the space required in cubic meters.

Ton to CBM
1Weight (Ton)
÷
300Density (kg/m³)
=
3.3333Volume (CBM)

Example: 1.5 tons at 300 kg/m3 = 5 CBM

300
LighterWaterHeavier
Quick answers

How do you convert tons to CBM?

Convert tons to kilograms first, then divide by density to get cubic meters.

Is one ton always one CBM?

No. That is only true when the density is 1000 kg/m3, like water. Most cargo uses a different density.