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.