This will calculate the volume of a cube based on the length of its sides.
ft
in
Volume of cube with 9′ sides
729cubic feet
1,259,712cubic inches
20.643cubic meters
20,642,981cubic centimeters
20,643liters
5,453.3gallons
(results may be rounded)

Volume of a Cube Formula

The volume of a cube is the length of one side cubed.

Volume = Side3

Side