Cubic Feet Calculator

Find the volume of a box or a cylinder in cubic feet, with cubic yards, gallons and cubic meters.

Cubic feet

24 ft³

  • Cubic yards0.889 yd³
  • Cubic inches41,472 in³
  • Gallons (U.S.)179.5 gal
  • Cubic meters0.68 m³

Estimates only. Round up when you order, and confirm structural details with your local building code.

How to use it

  1. Choose a box or a cylinder.
  2. Enter the dimensions in any unit.

The formula

Box = length × width × height

Cylinder = π × (diameter ÷ 2)² × height

Gallons = cubic feet × 7.48

Worked example

ShapeBox / rectangle
Length4 ft
Width3 ft
Height2 ft

Result

Cubic feet24 ft³
Cubic yards0.889 yd³
Cubic inches41,472 in³
Gallons (U.S.)179.5 gal
Cubic meters0.68 m³

Tips before you order

  • Moving companies estimate truck space in cubic feet; a 26 ft truck holds about 1,600–1,700 ft³.

Questions

How many gallons in a cubic foot?

7.48 U.S. gallons.