How to Calculate Volume of a Rectangular Prism

By eHow Education Editor

A rectangular prism or solid is three-dimensional, and its volume is easy to calculate. You measure the volume of a rectangular solid in cubic units of measurement. Figure out the volume of a rectangular prism by following these few short and simple steps.

Find the length of the prism.

Find the width of the prism.

Find the height of the prism.

Multiply the 3 dimensions together. It does not matter the order in which you multiply the numbers.

Write your answer in the proper cubic unit of measurement.