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CBM to kg calculator

Convert cubic metres to chargeable kilograms for courier, air, road and sea freight, and compare with the real weight.

Air freight chargeable weight
350kg
2 CBM at 167 kg per CBM
Courier (1 CBM = 200 kg)400 kg · billed on volumeAir freight (1 CBM = 167 kg)333 kg · billed on weightRoad (1 CBM = 333 kg)666 kg · billed on volumeSea (1 CBM = 1,000 kg)2,000 kg · billed on volume

How it works

Each mode uses a set density: 1 CBM counts as 167 kg for air (the 1:6000 rule), 200 kg for most courier services (÷ 5000), 333 kg for road and 1,000 kg for sea. The carrier charges the higher of that and the real weight.

Frequently asked questions

How many kg is 1 CBM?

It depends on the mode: 167 kg for air freight, 200 kg for courier, 333 kg for road and 1,000 kg for sea.

Is CBM to kg a real conversion?

No. CBM measures space and kg measures weight. Carriers use these ratios only to price light, bulky cargo fairly.

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