Free tool
Cubic weight calculator
Enter the size and weight of your parcels or pallets to see the cubic weight and the chargeable weight. Add as many lines as you need.
How cubic weight works
Freight takes up space as well as weight. Carriers convert the space your freight uses into a weight, called the cubic weight, and charge on whichever is greater: the actual weight or the cubic weight.
Cubic weight = length × width × height (in metres) × conversion factor.
For example, a 60 × 40 × 40 cm carton is 0.096 m³. At 250 kg per m³ its cubic weight is 24 kg, so even if it weighs only 6 kg it is charged as 24 kg.
Read the full guide: What is cubic weight and how is freight charged?
Questions
Cubic weight FAQs
How do you calculate cubic weight?
Multiply the length, width and height in metres to get cubic metres, then multiply by the conversion factor. For road freight this is commonly 250 kg per cubic metre.
What is chargeable weight?
The greater of the actual weight and the cubic weight. Freight is charged on the chargeable weight.
Which conversion factor should I use?
Use the factor your carrier uses. We use 250 kg per cubic metre for road freight. Some road carriers use 333, and air freight is commonly about 167.
Freight guides
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