Freight class calculator
Enter your pallet dimensions and weight to get density and LTL freight class on the 13-tier NMFC density scale (effective July 19, 2025), plus how to reach a cheaper class.
Measure each pallet or crate at its longest points, including the pallet itself and any overhang.
Density-based estimate using the 13-tier NMFC scale (effective July 19, 2025). Items with special handling, stowability or liability issues may have their own NMFC class. Confirm with your carrier. Classifying a whole order list? Use bulk CSV.
DIM weight for parcels
Compare UPS, FedEx and USPS billable weight with the 2026 divisors.
Bulk CSV classification
Upload an order list and classify every shipment at once.
Plain-English guides
Freight class, density, reclassification and DIM rules explained.
NMFC density scale (2025)
Each range includes its lower bound. Exactly 15 lb/ft³ is class 70.
| Density (lb/ft³) | Freight class |
|---|---|
| 50 or more | 50 |
| 35 to under 50 | 55 |
| 30 to under 35 | 60 |
| 22.5 to under 30 | 65 |
| 15 to under 22.5 | 70 |
| 12 to under 15 | 85 |
| 10 to under 12 | 92.5 |
| 8 to under 10 | 100 |
| 6 to under 8 | 125 |
| 4 to under 6 | 175 |
| 2 to under 4 | 250 |
| 1 to under 2 | 300 |
| 0 to under 1 | 400 |
Common questions
- How do I calculate freight class?
- Multiply length × width × height in inches and divide by 1,728 to get cubic feet. Divide the total weight by the cubic feet to get density in pounds per cubic foot, then look the density up on the NMFC density scale.
- What changed with freight class in 2025?
- NMFC Docket 2025-1, effective July 19, 2025, moved most commodities without special handling, stowability or liability concerns to a 13-tier density scale. Classes 50 and 55 can now be reached on density alone.
- Is the density-based class always my final class?
- No. Some commodities still have their own NMFC item, and carriers can reclassify freight after inspection. Use this as a strong estimate and confirm with your carrier for anything unusual.