Cubic Feet (CFT) Calculator
Calculate cubic feet for boxes and shipments from inches, feet, centimeters or meters, and convert CBM to CFT in one place.
1Package size
2CBM ↔ CFT converter
1 CBM = 35.315 CFT · 1 CFT = 0.0283 CBM
Cubic feet = length × width × height in feet. From inches, divide L × W × H by 1,728: a 24 × 16 × 16 in box is 6,144 ÷ 1,728 = 3.56 ft³. One cubic meter (CBM) is 35.315 ft³.
Cubic feet formulas
| Measured in | Formula | Example |
|---|---|---|
| Inches | L × W × H ÷ 1,728 | 24 × 16 × 16 ÷ 1,728 = 3.56 ft³ |
| Feet | L × W × H | 2 × 1.33 × 1.33 = 3.56 ft³ |
| Centimeters | L × W × H ÷ 28,317 | 60 × 40 × 40 ÷ 28,317 = 3.39 ft³ |
| Meters | L × W × H × 35.315 | 0.6 × 0.4 × 0.4 × 35.315 = 3.39 ft³ |
Cubic feet of shipping containers
| Container | Inside volume | Cubic feet |
|---|---|---|
| 20' Standard (20GP) | 33.1 m³ | 1,170 ft³ |
| 40' Standard (40GP) | 67.6 m³ | 2,386 ft³ |
| 40' High Cube (40HQ) | 76.0 m³ | 2,686 ft³ |
| 45' High Cube (45HQ) | 85.7 m³ | 3,027 ft³ |
| 53' Dry Van Trailer | 109.6 m³ | 3,870 ft³ |
Real loads use 75–90% of that space. To see how your cartons actually fit, use the container load calculator.
Frequently asked questions
How do I calculate cubic feet?
Multiply length × width × height. If you measured in inches, divide the result by 1,728; in centimeters, divide by 28,317; in meters, multiply by 35.315.
How many cubic feet are in 1 CBM?
One cubic meter (CBM) is 35.315 cubic feet. One cubic foot is 0.0283 CBM.
What does CFT mean in shipping?
CFT means cubic feet. It is used for shipping volume in the US and some Asian markets, while most international sea freight is priced per CBM.
How many cubic feet is a 40ft container?
About 2,386 ft³ for a 40ft standard and 2,686 ft³ for a 40ft high cube (inside volume).