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Freight Density Calculator

Enter shipment weight and length, width and height in inches to calculate cubic feet and pounds per cubic foot. Density is one of the main inputs to LTL freight class.

Updated 2026-10-30 · Formula shown · No signup
--Cubic feet · ft³
--Density · lb/ft³

Estimates only; verify on site before ordering or building.

Example

ItemValueUnit
Total weight500lb
Length48in
Width40in
Height36in
Cubic feet40ft³
Density12.5lb/ft³

Where people go wrong

  • Treating inches as feet when computing volume.
  • Measuring one pallet but forgetting to multiply by the total count.
  • Using kilograms while reading the result as pounds.

FAQ

Does density alone determine freight class?

Density is the main factor, but NMFC class also considers material, packaging, fragility and handling.

How do I handle gaps between pallets?

Measure the space actually occupied, including pallets and non-compressible gaps, not just the goods.