Freight Density Calculator

Calculate packaged freight density from weight and outside dimensions. This estimator does not assign NMFC freight class.

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Your inputs

Use the labeled units consistently. Inputs stay in your browser.

Include the pallet and all packaging as tendered to the carrier.
Measure the greatest outside dimension, including overhang.
Include projections and packaging.
Include the pallet or skid. This calculator models one handling unit.

Ready when you are.

Enter your values or load the worked example.

This result is density, not an official freight class. Verify the NMFC commodity rules separately.

Know what the number means

Calculate packaged freight density

Measure the greatest outside length, width and height of one handling unit in inches, including its pallet, packaging and overhang. Weigh the unit as offered to the carrier in pounds. Divide cubic inches by 1,728 to get cubic feet, then divide weight by that volume.

The formula

Volume (ft³) = length × width × height in inches ÷ 1,728 Density (lb/ft³) = packaged weight in pounds ÷ volume

Keep currency, units and time periods consistent. Percentage inputs use percentage points (enter 5 for 5%). Results are rounded only for display; tiny nonzero values may use scientific notation. Undefined ratios are shown as unavailable.

Worked example

A packaged 450 lb handling unit measuring 48 × 40 × 45 inches occupies 50 ft³. Its density is 9 lb/ft³; no freight class is assigned.

Why density does not establish freight class

US LTL freight class depends on the applicable NMFC commodity rules and transportation characteristics, including density, handling, stowability and liability. This tool has no licensed commodity lookup or class assignment. Take the density to your carrier or ClassIT+ to verify the current NMFC item and class.

Keep shipment units and freight rates separate

Do not divide the weight of several pallets by the dimensions of one pallet. Calculate each different handling unit separately. Shipment density alone cannot provide a carrier price, lane rate, discount or accessorial charge. Minimum Load Rate uses your own mileage policy, not an LTL tariff.

Method and reference sources

Method and content checked 2026-10-12. These sources provide background, not endorsement or professional certification. The formula and limitations above define this calculator.

Frequently asked questions

Does this freight class calculator alternative assign an NMFC class?

No. It calculates density only. Confirm the commodity item, packaging and current classification rules with the carrier or NMFTA ClassIT+.

Should pallet and packaging be included?

Yes. Use the total weight and greatest outside dimensions of the packaged handling unit, including pallet and projections.

Keep the decision connected.

Minimum Load Rate

Build a carrier-defined floor rate with an explicit deadhead policy and negotiation targets.

Shipping Cost Per Unit

Allocate freight and logistics to each sellable item. See the impact on your product cost.

Landed Cost

Add freight, duty, tax and local delivery to reveal the full imported cost per unit.