CBM means cubic meter. It is the standard volume unit used across international freight planning, container utilization and many LCL rate calculations.
CBM = length (m) × width (m) × height (m) × quantityHow to calculate CBM
Convert all three outside dimensions to meters, multiply length × width × height and then multiply by the number of identical pieces. A carton measuring 100 × 80 × 60 cm occupies 0.48 m³; two identical cartons occupy 0.96 CBM.
CBM in ocean and air freight
CBM is a physical volume, not a freight price. Ocean LCL quotations often compare volume with weight under a weight-or-measure rule. Air freight converts volume into volumetric kilograms using a divisor. Use the dedicated chargeable-weight calculator when you need a pricing-weight estimate.
Use outside shipping dimensions
Measure the packed carton, crate or palletized unit, not the bare product. Strapping, corner protection, pallet height and packaging can all increase the space the shipment actually occupies.
Frequently asked questions
What does CBM stand for?
CBM stands for cubic meter, written m³.
How many cubic feet are in one CBM?
One cubic meter is approximately 35.3147 cubic feet.
Do I multiply CBM by quantity?
Yes. Calculate the cubic meters of one identical package and multiply by the number of packages.
Is CBM the same as chargeable weight?
No. CBM measures physical volume. Chargeable weight converts or compares volume with actual weight according to a freight pricing rule.
Sources & verification
Verify carrier-sensitive rules against the source governing your shipment.
Formula reviewed September 29, 2026 Representative values and boundary cases are tested automatically.