Free Freight Class Calculator Online
Determine NMFC freight density and class categories based on package weight and dimensions.
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Determining NMFC Freight Density and Classes
Estimate freight shipping classifications. Calculate density in pounds per cubic foot (pcf) to prevent costly carrier re-weighing disputes.
Frequently Asked Questions (FAQ)
What is Freight Class?
Freight Class is a standard classification system created by the National Motor Freight Traffic Association (NMFTA) to categorize shipping commodities based on their density, ease of handling, liability, and stowability.
How is freight density calculated?
Density is calculated by dividing the total weight of the shipment in pounds by its total volume in cubic feet (Length * Width * Height in inches / 1,728).
How many freight classes are there?
There are exactly 18 distinct freight classes, ranging from Class 50 (dense, heavy commodities like steel) to Class 500 (low density, fragile items like ping pong balls).
Why does freight class affect shipping costs?
Lower classes (higher density) are cheaper to ship because they take up less space and are easier to stow, while higher classes take up more space and cost more.
Is my shipment details private?
Yes, all dimensions are processed locally on your device.