Ocean and volume
Ocean Freight W/M Calculator
Compare measurement and weight revenue tons, then optionally apply a user-entered rate and minimum.
Enter shipment details
Planning result
Enter valid values, then calculate.
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Results are estimates. Verify changing carrier, classification, and equipment rules before shipping.
How this calculator works
This calculator applies the common ocean LCL weight-or-measure comparison between cubic meters and metric tons.
Chargeable revenue tons = max(CBM, gross kg / 1,000).
Worked example
For 6.8 CBM and 1,850 kg, measurement is 6.8 RT, weight is 1.85 RT, and chargeable volume is 6.8 RT.
What to measure
Use the outside packaged dimensions as the shipment will be tendered. Include pallets, skids, cartons, wrapping, overhang, and projections. Weigh the complete packaged unit, not only its contents.
Assumptions and limitations
Forwarders and carriers can use different minimums, increments, local charges, and contract rules. The optional amount is not a quote.
Rules and sources used
Frequently asked questions
Is this result exact?
Geometry and unit conversions are calculated directly from your entries. Class, billing, and packing results are planning estimates because official rules, equipment, and real loading conditions can vary.
Does Freight Totals save my shipment?
No. Calculator inputs remain in your browser and are not sent to Freight Totals analytics.
Can I use metric and US units?
Tools show the unit system that fits the workflow, and the density and volume tools support both systems. Equivalent secondary results are shown where useful.