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# Dimensional weight calculator

Enter box sizes and weights to get volumetric and chargeable weight under any carrier divisor, with a per-box table and a shipment total.

 Box L ( cm ) W ( cm ) H ( cm ) Weight ( kg ) Qty
 1

Enter box sizes and weights to price the shipment.

The carrier table is a dated reference, not a live rate card: express couriers divide cubic centimetres by 5000; FedEx and UPS US retail rates divide cubic inches by 139 and round every side up to whole inches; USPS uses 139 over one cubic foot (the 2026-07-12 rule change from 166) and skips dim weight at or under that box; air cargo divides by 6000. Real invoices add fuel, remote-area and oversize fees, and the rate card your shipper hands you wins over anything here.
Options

## More unit & math tools

- [Unit converter](/converters/units)
- [Aspect ratio and DPI](/converters/aspect-ratio)
[All unit & math tools](/converters)

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