cubic units are the volume of a cube and is a represented as V3 ,it is mathematical representation
of a cubiod or cube,helpful in knowing the volume of that particular cube.This volume is measured in cubic units.
Cubic units, like cubic feet or cubic inches, are measures of volume.
A box that measures 2 feet by three feet by 4 feet has a volume
of (2 ft) x (3 ft) x (4 ft) = 24 cubic feet.