Freight Class Calculator
Calculate your freight class based on shipment dimensions and weight. Freight class determines LTL shipping rates and is based on density (pounds per cubic foot).
Enter Shipment Details
Results
Enter weight and dimensions to calculate freight class
Note: This calculator provides an estimated freight class based on density alone. Actual NMFC classification also considers handling, stowability, and liability. Always verify with the official NMFC classification.
Look up official NMFC codes →How to Calculate Freight Class
Measure Dimensions
Measure the length, width, and height of your shipment in inches. Include any packaging, pallets, or crating.
Calculate Density
Divide the weight (lbs) by the cubic feet (L × W × H ÷ 1,728). Density is measured in pounds per cubic foot (PCF).
Determine Class
Match your density to the corresponding freight class. Higher density = lower class = lower cost. Classes range from 50 to 500.
Density-Based Freight Class Table
| Freight Class | Density Range (lbs/ft³) | Cost Level |
|---|---|---|
| 50 | 50+ | Lowest |
| 55 | 35-50 | Very Low |
| 60 | 30-35 | Low |
| 65 | 22.5-30 | Low-Medium |
| 70 | 15-22.5 | Medium-Low |
| 77.5 | 13.5-15 | Medium |
| 85 | 12-13.5 | Medium |
| 92.5 | 10.5-12 | Medium-High |
| 100 | 9-10.5 | High |
| 110 | 8-9 | High |
| 125 | 7-8 | Higher |
| 150 | 6-7 | Higher |
| 175 | 5-6 | Very High |
| 200 | 4-5 | Very High |
| 250 | 3-4 | Premium |
| 300 | 2-3 | Premium |
| 400 | 1-2 | Premium+ |
| 500 | <1 | Highest |
Automate Freight Classification with Our API
Integrate NMFC classification lookup into your TMS, ERP, or shipping application. Search over 10,000 NMFC articles with sub-item density breakdowns via a simple REST API.