Cubic Feet Calculator
Find the volume of a box, a room, a freezer, or a moving load in cubic feet. Enter the length, width, and height in any units, and the number of identical items, to see the total cubic feet.
Cubic feet
4.5
Check the highlighted fields to see your result.
- Each item
- 4.5
- Cubic meters
- 0.1274
- Liters
- 127.4
- Cubic yards
- 0.167
Results are estimates for information only and do not constitute financial, medical, or legal advice.
How it works
Cubic feet measure the space inside something shaped like a box. Multiply the three dimensions, then convert to cubic feet. If you have several identical boxes, multiply by how many there are.
The formulas
Cubic feet = length × width × height (in feet)
From inches: cubic inches ÷ 1,728
Worked example
A moving box is 24 × 18 × 18 inches.
- Cubic inches: 24 × 18 × 18 = 7,776.
- Cubic feet: 7,776 ÷ 1,728 = 4.5 cubic feet.
- Ten of these boxes take up 45 cubic feet.
Frequently asked questions
How do I find cubic feet from inches?
Multiply length × width × height in inches to get cubic inches, then divide by 1,728 (because a cubic foot is 12 × 12 × 12 = 1,728 cubic inches). The calculator does this for you when you choose inches.
How many cubic feet do I need for a move?
A rough rule is 200 to 250 cubic feet per fully furnished room. A 10-foot truck holds about 400 cubic feet, a 15-foot truck about 750, and a 26-foot truck about 1,600. Add up your boxes and large furniture to get a closer estimate.
Why do carriers care about cubic feet?
Large but light packages take up space in a truck or plane, so many carriers charge by "dimensional weight," which is based on the package volume. Measure the box at its widest points, including any bulges.