CBM Calculator
Calculate cubic metres for a shipment, plus volumetric weight and the chargeable weight freight forwarders actually bill you for.
Chargeable weight is the number that costs you money
Carriers charge for whichever is greater: actual weight or volumetric weight. For sea freight the usual divisor makes 1 CBM equal 1,000 kg; for air freight the standard is 6,000 cm³ per kilogram. A pallet of pillows and a pallet of tiles occupy the same space and cost very different amounts to ship, and knowing which side of the line your cargo falls on before you book is what stops surprise invoices.
How to use the CBM Calculator
- Fill in each field with your own figures — the defaults are only there as an example.
- The result updates as you type, so there is no button to press.
- Check the breakdown under the main result for the supporting numbers.
- Use the copy button to take the result with you, or share the link to reload the same inputs.
CBM Calculator — frequently asked questions
Is this cbm calculator free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
How accurate is the result?
The maths is exact for the formula shown on the page. Accuracy in the real world depends on your inputs and on assumptions the formula cannot see, so treat the output as a well-grounded estimate rather than a quote.
Can I use it on my phone?
Yes. The page is responsive, weighs a few kilobytes and works offline once loaded, so it behaves the same on a phone as on a desktop.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the cbm calculator.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error