This calculator is designed to help you determine the correct freight density and, when applicable, the appropriate National Motor Freight Classification (NMFC) for your shipment—particularly when density is the primary freight characteristic.

Please note that not all freight is classified based on density, and not all density-based classifications follow a 13-sub scale. Therefore, it is essential to consult the most recent NMFC to identify the correct item number and classification for your freight.

To use the calculator, measure the full dimensions of the handling unit being tendered to the carrier, including any pallets or packaging. All measurements must be entered in inches and weight in pounds.