Cubic Feet Calculator
Calculate the volume of a box, room, container or space in cubic feet, and see it in cubic yards, cubic meters, liters and US gallons.
How to use the Cubic Feet Calculator
- Enter the length, width and height.
- Choose the unit you measured in.
- Read the volume in cubic feet and other units.
How it works
Volume = length × width × height. If you measure in inches, the result is divided by 1,728 (12³) to get cubic feet; in yards, multiplied by 27. One cubic foot is about 7.48 US gallons or 28.32 liters.
Cubic feet conversions
| Cubic feet | Cubic yards | Cubic meters | US gallons |
|---|---|---|---|
| 1 | 0.037 | 0.028 | 7.5 |
| 5 | 0.185 | 0.142 | 37.4 |
| 10 | 0.37 | 0.283 | 74.8 |
| 27 | 1 | 0.765 | 202 |
| 50 | 1.852 | 1.416 | 374 |
| 100 | 3.704 | 2.832 | 748.1 |
Frequently asked questions
How do I calculate cubic feet in inches?
Multiply length × width × height in inches and divide by 1,728.
How many cubic feet in a cubic yard?
27 cubic feet (3 × 3 × 3).
How many gallons in a cubic foot?
About 7.48 US gallons.
How do I find the cubic feet of a cylinder?
Multiply π × radius² × height, with all measurements in feet. A tank 2 ft across and 4 ft tall holds about 12.6 cubic feet.
How many cubic feet is a moving truck?
A 10-foot truck holds roughly 400 cubic feet, a 15-foot about 760 and a 26-foot about 1,700.