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Freight Density Calculator — lb/ft³, kg/m³ & Estimated NMFC Class

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Dimension unit Outside length Greatest packaged dimension as tendered.Outside width Outside height Weight unit Gross weight per handling unit Include pallet and packaging when tendered with the freight.Identical handling units Whole units with the same dimensions and weight.

Calculated result

9 lb/ft³ · estimated Class 100

Shipment density: 9 lb/ft³ · 144.2 kg/m³

Total cube: 50 ft³ · 1.416 m³

Total gross weight: 450 lb · 204.1 kg

2025 NMFC full-density scale: estimated Class 100 (8 to under 10 lb/ft³)

Show the working

1. Outside unit cube = 48 × 40 × 45 in = 1.41584 m³.
2. Total cube = 1.41584 × 1 = 1.41584 m³ = 50 ft³.
3. Total gross weight = 450 lb × 1 = 450 lb.
4. Density = 450 lb ÷ 50 ft³ = 9 lb/ft³.
5. The 8 to under 10 lb/ft³ full-density band maps to Class 100.

Density-based class is an estimate, not an NMFC item determination. Handling, stowability, liability, commodity-specific provisions and carrier tariffs can change the applicable class.

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