Compare LCL quotes fairly
LCL ocean freight is often quoted by CBM. List every carton type so a lower rate is not based on a smaller or incomplete shipment volume.
MULTI-CARTON SHIPPING VOLUME
Free CBM Calculator
Calculate cubic meters, cubic feet, total shipment weight, and air chargeable weight across multiple carton sizes.
USE THE RIGHT SHIPPING BASIS
Use carton CBM to compare shipping options on the same basis
A forwarder can only compare LCL, air, and container options accurately when every quote uses the same carton dimensions, quantity, and weight. Add each carton type below before asking for a freight rate.
CBM formula for cartons
Length (cm) × width (cm) × height (cm) ÷ 1,000,000 × carton quantity = total CBM.
For air freight, compare the actual weight with volumetric weight. This calculator uses 1 CBM = 166.67 kg as a planning estimate; confirm your carrier's factor before booking.
YOUR SHIPMENT
Carton dimensions and quantity
PRACTICAL SHIPPING DECISIONS
When a CBM calculation changes the next step
CBM is a volume measure, not a loading plan or a binding freight quote. It is most useful when it helps you give the same shipment brief to every forwarder before you compare options.
Check air chargeable weight
Lightweight but bulky cartons can be charged by volume instead of scale weight. Use both numbers when comparing air freight and express options.
Move from volume to loading
Once volume is clear, check the physical carton fit, payload, and container choice before treating an FCL option as workable.
CBM calculator FAQs
How do I calculate CBM?
For each carton, multiply length × width × height in centimeters, then divide by 1,000,000. Multiply that result by the carton quantity, then add the CBM for every carton type in the shipment.
How do I convert CBM to cubic feet?
One cubic meter equals 35.3147 cubic feet. Multiply your total CBM by 35.3147 to convert it to cubic feet.
What is air chargeable weight?
Air freight is normally priced using whichever is greater: actual shipment weight or volumetric weight. A common air-freight conversion is 1 CBM = 166.67 kg, though your carrier may use a different factor.
Can I calculate more than one carton size?
Yes. Add each carton type separately, including its dimensions, unit weight, and quantity. The calculator totals the full shipment volume and weight for you.
Calculations are planning estimates. Container, carrier, pallet, packaging, and route constraints can change the final billable volume or chargeable weight.