Freight class calculator
Enter the size and weight of each pallet or crate. You get cubic feet, density and the freight class on the 13-class NMFC density scale in force since July 19, 2025. Inches and pounds, or centimetres and kilograms. Checked Oct 31, 2026.
Enter the dimensions and weight.
The arithmetic: length x width x height in inches, divided by 1,728, is cubic feet; weight in pounds divided by cubic feet is density (PCF). Centimetres and kilograms are converted first (2.54 cm to the inch, 2.20462 lb to the kilogram). The calculator runs in your browser; nothing you type is sent anywhere.
NMFC density scale, July 19, 2025 onward
| Density (pounds per cubic foot) | Class |
|---|---|
| Less than 1 | 400 |
| 1 to under 2 | 300 |
| 2 to under 4 | 250 |
| 4 to under 6 | 175 |
| 6 to under 8 | 125 |
| 8 to under 10 | 100 |
| 10 to under 12 | 92.5 |
| 12 to under 15 | 85 |
| 15 to under 22.5 | 70 |
| 22.5 to under 30 | 65 |
| 30 to under 35 | 60 |
| 35 to under 50 | 55 |
| 50 or more | 50 |
From NMFC Docket 2025-1. It applies to commodities classed by density; items with their own handling, stowability or liability class, and rate agreements that use one class for everything (FAK), are billed differently.
Send your LTL invoices and we check every line: re-class and re-weigh charges against the dimensions, the fuel percentage for each ship date, accessorials against the tariff, duplicates and your discount. The report is free; you pay 15% of what the carrier credits back, nothing otherwise.
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Questions
How do I work out freight class from density?
Multiply length by width by height of the whole handling unit in inches, divide by 1,728 to get cubic feet, then divide the weight in pounds by the cubic feet. That is the density in pounds per cubic foot (PCF). Find the PCF in the table above to get the class. The calculator does the same arithmetic.
What changed in the NMFC in July 2025?
NMFC Docket 2025-1 took effect on July 19, 2025. Many commodities moved to classification by density alone, and the density scale went from 11 steps to 13, adding classes 55 and 50 for the densest freight (35 PCF and up).
How should I measure a pallet?
Measure the outside of the unit as it ships, pallet included, at its longest, widest and tallest points, including anything that overhangs the pallet. Weigh it with the pallet and packaging. Carriers measure freight when they inspect it, so your own measurements are what you compare against a re-class.
Does every product use the density scale?
No. Items that need special handling, do not stack well or carry high liability can have their own NMFC class regardless of density, and your rate agreement may use a single class for everything (FAK). Use this result for freight that is classed by density, and check your agreement for the class you are actually billed.
Why would my invoice show a higher class than my bill of lading?
Carriers can re-weigh and re-measure a shipment and re-class it, usually with an inspection charge. If the density they used does not match your own measurements, ask for the inspection record (photo and dimensions). Our freight audit checks re-class and re-weigh lines on every invoice.
Are you connected to the NMFTA?
No. A3E Ecosystem Inc. is not affiliated with the National Motor Freight Traffic Association, which publishes the NMFC. The scale above is the published density table for Docket 2025-1.
Also free: LTL fuel surcharge this week (FedEx Freight Canada, Old Dominion, US and Canadian diesel).