Freight Class Calculator
Estimate LTL freight class from handling-unit dimensions, quantities, and weights; the tool totals density and maps i...
What Freight Class Calculator does
FreightTotals' Freight Class Calculator helps users determine the NMFC freight class for LTL shipments by entering handling-unit dimensions, quantities, and weights. The tool calculates aggregate density and maps it to the current 13-band density scale, providing an estimated class based on the relationship between density and freight class. The result includes total volume, total weight, and aggregate density in both pcf and kg/m³, along with a warning that density-only estimates can be incorrect when stowability, handling, or liability factors apply. The calculator supports both imperial and metric unit systems and offers layout customization options for embedding on external sites.
How to use the FreightTotals Freight Class Calculator
- 1
Select the unit system (Inches and pounds or Centimeters and kilograms) from the Unit system dropdown.
- 2
Enter the Length, Width, and Height of the handling unit.
- 3
Input the Weight of the handling unit and the Quantity of units being shipped.
- 4
Click the Calculate button to view the estimated density-based freight class and aggregate density.
- 5
Use the Reset button to clear all fields and start a new calculation.
Best for
Logistics professionals and shippers who need a quick density-based freight class estimate for LTL cargo and appreciate the ability to switch between imperial and metric units or customize the calculator's appearance for embedding on a webs
Limitations
- Density-only estimate may be incorrect if stowability, handling, or liability factors differ from assumptions.
- Official NMFC class can be affected by commodity provisions, packaging, tariffs, and carrier-specific rules not reflected in the calculation
- Results are estimates based on density and may require verification with official NMFC tariffs for compliance.
Freight Class Calculator FAQ
- Can this calculator guarantee the correct NMFC freight class for my shipment?
- No, the tool provides a density-based estimate only. Official NMFC classification depends on four factors—density, stowability, handling, and liability—as well as commodity rules, packaging, and carrier regulations, which can lead to reclassification fees if overlooked.
- What do the 13 density subprovisions mean for my freight class?
- The calculator maps aggregate density to the post-July-2025 13-band scale, where density ranges from under 1 pcf to 50 pcf or greater, corresponding to freight classes from 50 down to 400. A density-only estimate may not account for all NMFC factors.
- Is the freight class result the same as the official carrier-assigned class?
- No, the result is an estimate based on density. Carriers may assign a different class based on their interpretation of NMFC rules, stowability, handling characteristics, and liability considerations specific to the commodity.
- Can I embed this calculator on my own website?
- Yes, the calculator can be embedded using a free iframe code. The FreightTotals attribution must remain intact within the embedded calculator.
More Freight Class Calculator tools
Similar tools
Based on shared tags