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Income Tax Calculator
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Freight Class Calculator
Estimate LTL freight class from your shipment’s dimensions and weight using the NMFC 13-tier density scale.
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How to use this calculator
Enter your values. The result updates as you type; press Calculate to confirm and jump to the result on mobile. Use Share to send the calculator with your result.
NMFC density scale (13 tiers, effective July 19, 2025)
| Density (lb/ft³) | Class |
|---|---|
| 50 or more | 50 |
| 35 to less than 50 | 55 |
| 30 to less than 35 | 60 |
| 22.5 to less than 30 | 65 |
| 15 to less than 22.5 | 70 |
| 12 to less than 15 | 85 |
| 10 to less than 12 | 92.5 |
| 8 to less than 10 | 100 |
| 6 to less than 8 | 125 |
| 4 to less than 6 | 175 |
| 2 to less than 4 | 250 |
| 1 to less than 2 | 300 |
| Less than 1 | 400 |
density = weight (lb) ÷ (L × W × H in inches ÷ 1,728)
Lower classes (denser freight) usually cost less per pound. Source: NMFTA Docket 2025-1, as summarized by carriers.
Frequently asked questions
What class is a 48×40×48 pallet at 500 lb?
About 9.4 lb/ft³, class 100.
About this tool
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- Last updated
- 31 Oct 2026
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