The equation for calculating capacity is the same as calculating volume, so the equation for the capacity of a cube, for example, is the measurement of one of the sides cubed. Volume is the measurement of the total capacity of a container or object, describing its overall size.
Calculating volume or capacity requires a number determining length, either a length of time or a length of distance. In calculating the capacity of a machine to perform a task for a given period of time, the calculation would be: 10 minutes maximum operation time x 6 operations per minute = a maximum capacity for 60 operations. Physical volume uses this equation: Where the sides of a cube are B, B cubed equals the volume.