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CBM calculator: how to calculate cubic metres for freight

Calculate cubic metres, cubic feet, density and chargeable weight for any shipment.

Methodology & Quick Reference

Multiply length × width × height in centimetres, divide by 1,000,000 to convert to cubic metres (CBM), then multiply by the total number of pieces. For imperial measurements in inches, multiply length × width × height and divide by 61,024, or divide by 1,728 to get cubic feet first.

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Input Parameters

Cargo dimensions
L (cm)W (cm)H (cm)QtyWt (kg)

Add one line per carton, pallet or crate type. Dimensions are per piece.

Calculation ResultsAwaiting Input
calculate

Enter your shipment details on the left, then click Calculate to see instant results.

Calculation Formula

CBM = (Length cm × Width cm × Height cm ÷ 1,000,000) × Quantity

How to Use This Tool

  1. 1
    Measure each package typeTake the longest external dimension for length, width and height, including pallets or crates.
  2. 2
    Add cargo linesEnter the piece count and total weight for each distinct carton or pallet size.
  3. 3
    Read volume and LCL chargeableThe calculator outputs total CBM, cubic feet, density in kg/m³ and the sea LCL weight-or-measure basis.

Key Reference Values

1 CBM in cubic feet35.315 ft³
1 CBM in litres1,000 L
Sea LCL W/M ratio1 CBM = 1,000 kg (1 tonne)
Air freight ratio1 CBM = 166.67 kg (6000 cm³/kg)

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