Tools · Density calculator
Freight Density Calculator
Enter your shipment dimensions and weight to estimate its density and freight class.
LTL freight is priced by class, and class starts with density: how many pounds your shipment weighs per cubic foot. A denser shipment usually classes lower and costs less to ship. This calculator estimates density and a likely class from the numbers you enter.
Use it to sanity-check a rate before you book. It is an estimate, not a final class. When you request a quote, a broker confirms the real class and prices the lane.
Density calculator
Enter dimensions and weight to see the density.
How density drives your class
Density is weight divided by volume. Take the length, width, and height in inches, multiply them, and divide by 1,728 to get cubic feet. Then divide the weight by that number for pounds per cubic foot.
Denser freight generally falls into a lower, cheaper class because it uses less trailer space for its weight. Light, bulky freight classes higher. Packaging that raises density, such as tighter stacking or a smaller footprint, can lower your class and your rate.
Estimated class ranges
| Density (lbs per cubic foot) | Estimated class |
|---|---|
| 30 or more | Class 60 or lower |
| 22.5 to 30 | Class 65 |
| 15 to 22.5 | Class 70 |
| 12 to 15 | Class 85 |
| 9 to 12 | Class 92.5 to 100 |
| 6 to 9 | Class 110 to 150 |
| 4 to 6 | Class 175 to 200 |
| Under 4 | Class 250 or higher |
A guide only. Handling, stowability, and liability also factor into the final class your broker confirms.
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