CBM & freight chargeable weight calculator
Air: volumetric kg = cm³ ÷ 6000 (www.iata.org, fetched 2026-10-15). Sea LCL: the greater of CBM and metric tons (1 CBM = 1000 kg), an industry convention — confirm with your forwarder.
Result
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Sources
| Source | URL | Fetched | Notes |
|---|---|---|---|
| iata_volumetric | https://www.iata.org/en/publications/newsletters/iata-knowledge-hub/air-cargo-tariffs-and-rules-what-you-need-to-know/ | 2026-10-15 | IATA Knowledge Hub: air volumetric weight general rule = volume in cm³ ÷ 6000; the higher of volumetric and actual weight is charged. Sea LCL 1 CBM = 1,000 kg (W/M) is an industry convention, not an IATA rule — confirm both with your forwarder. |
Fees and rules change. Confirm against the official page and your own account before pricing decisions.
FAQ
How do I calculate CBM?
Length × width × height in centimetres ÷ 1,000,000 gives cubic metres per carton; multiply by the number of cartons.
What is chargeable weight in air freight?
The greater of actual gross weight and volumetric weight (cm³ ÷ 6000 under IATA’s general rule). We round up to the next 0.5 kg, a common airline practice; your carrier’s rounding may differ.
What does W/M mean for LCL?
Weight or measurement: the forwarder bills whichever is greater, cubic metres or metric tons (1 CBM treated as 1,000 kg).