Tools

Density &
Freight Class

Enter your shipment dimensions and weight to instantly calculate cubic footage, density, and estimated NMFC freight class.

Dimensions
inches
inches
inches
Weight
pounds
count
How It Works
1. Cubic Feet = (L × W × H) ÷ 1,728
2. Density = Weight ÷ Cubic Feet
3. Freight Class = Based on NMFC density scale

This calculator estimates class based on density only. Final classification may also consider stowability, handling, and liability factors.

Enter your shipment dimensions and weight, then press Calculate

Cubic Footage
— ft³
Freight Density
— lbs/ft³
Estimated Freight Class
—
⚠ Estimate based on density only. Final class may vary depending on commodity, stowability, and carrier inspection.
Density Scale (lbs/ft³)
50+ (Class 50) <1 (Class 500)
NMFC Freight Class Reference — Density Scale
Freight Class Density (lbs/ft³) Typical Commodities Cost Level
Class 50 ≥ 50 Machinery, cast iron, steel products, bricks Lowest
Class 55 35 – 50 Hardwood floors, engine parts, mortar Very Low
Class 60 30 – 35 Car accessories, canned food, steel wire Low
Class 65 22.5 – 30 Car parts, boxed books, bottled beverages Low
Class 70 15 – 22.5 Food items, auto parts, oil, tires Moderate
Class 77.5 13.5 – 15 Tires, bathroom fixtures Moderate
Class 85 12 – 13.5 Crated machinery, cast iron stoves Moderate
Class 92.5 10.5 – 12 Computers, monitors, refrigerators Moderate
Class 100 9 – 10.5 Boat covers, car covers, canvas Higher
Class 110 8 – 9 Cabinets, framed artwork, table saws Higher
Class 125 7 – 8 Small appliances, auto glass, plywood Higher
Class 150 6 – 7 Auto sheet metal, bookcases High
Class 175 5 – 6 Clothing, couches, stuffed furniture High
Class 200 4 – 5 Sheet metal parts, aluminum extrusions Very High
Class 250 3 – 4 Bamboo furniture, mattresses, plasma TVs Very High
Class 300 2 – 3 Wood cabinets, model boats, assembled chairs Premium
Class 400 1 – 2 Deer antlers, ping pong balls Premium
Class 500 < 1 Gold dust, bags of air, low-density foam Highest