CBM calculator
Enter each piece in centimeters and this page totals the volume in cubic meters (CBM) and cubic feet, then shows how much of a 20 ft, 40 ft and 40 ft high cube container that volume fills. The US-unit version is the cubic feet calculator.
Your pieces
Container volumes used here
| Container | Internal size (L × W × H) | Volume | Max payload |
|---|---|---|---|
| 20 ft standard | 5,896 × 2,350 × 2,393 mm | 33 m³ (1,165 ft³) | 28,200 kg |
| 40 ft standard | 12,032 × 2,350 × 2,393 mm | 67 m³ (2,366 ft³) | 28,800 kg |
| 40 ft high cube | 12,032 × 2,350 × 2,697 mm | 76 m³ (2,684 ft³) | 28,620 kg |
Maersk dry equipment specifications, nominal figures. Internal dimensions vary by container series. Counting pallets instead of volume? See how many pallets fit in a 40 ft container.
Questions
How do I calculate CBM?
Multiply length × width × height in centimeters and divide by 1,000,000. A 120 × 80 × 60 cm crate is 576,000 cm³, which is 0.576 CBM. This page totals multiple pieces and converts to cubic feet as well.
How much fits in a 40 ft container?
A 40 ft standard container holds about 67 m³ by Maersk's nominal figures, and a 40 ft high cube about 76 m³. Real loads cube out earlier when pieces cannot stack or fill the corners, so treat the fit percentage as a ceiling.
Is CBM the same as chargeable weight?
No. CBM is volume. Chargeable weight converts volume to a billable weight with a divisor. The two meet on the volumetric and chargeable weight calculators.
Sources
- Maersk dry equipment specifications (internal dimensions, volumes, payloads)
- Standard conversion: 1 m³ = 1,000,000 cm³ ≈ 35.31 ft³
Rules last checked November 12, 2026 · How we check every figure