CBM (cubic meter) measures the volume your cargo occupies, and it often decides your freight cost more than actual weight does.
The formula is simple: Length x Width x Height (in meters) = CBM per carton. Multiply by your carton count for total volume.
Carriers also calculate volumetric weight. For sea freight, a common divisor is 1000; for air freight it is 6000. Carriers charge on the greater of actual or volumetric weight, so light but bulky goods can cost more than you expect.
Use our CBM calculator to estimate volume, volumetric weight, and how many cartons fit in a 20ft or 40ft container before you book.
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