Shenzhen, ChinaGlobal freight coordination
Shipping guides

CBM calculator for mixed carton sizes

Enter the outer dimensions in centimetres and the number of cartons for each size. The calculator adds their volumes in cubic metres (CBM). Use the packed measurements, including any space taken up by the packaging.

How do I calculate CBM from centimetres?

Multiply length × width × height × carton count, then divide by 1,000,000. Calculate each carton size separately and add the results.

For example, 10 cartons measuring 60 × 40 × 50 cm occupy 1.20 m³. Four cartons measuring 50 × 40 × 30 cm add 0.24 m³. Put 1.44 CBM and 14 cartons on the quote request, together with their gross weight.

What changes if my supplier uses pallets?

If the freight will travel on pallets, use the final outer length, width and loaded height of each pallet as the shipping unit. Counting both the pallet volume and its cartons would count the same goods twice. Tell the forwarder whether the pallets can be stacked.

What else does a forwarder need to quote?

Volume measures space. Include packed gross weight, product description, pickup city, destination postcode and cargo ready date so the forwarder can compare services for this shipment.

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