The formula of length x width x depth is used to calculate volume of box-shaped areas. For example, the formula can be used to calculate the volume of storage boxes, topsoil, yards, gardens, and concrete and cement fills. The formula can also be used to find water volume.

Calculations related to length x width x depth can be used to determine the volume of other shapes besides the rectangle. For example, the volume of a triangle uses the same formula, but divides the product in half to determine the triangle's volume.

As length, width and depth are all measurements, it is important to recall that the final volume (which is a three-dimensional figure) is of the form units cubed. For instance, if these three dimensions are all in feet, then the volume is given in cubic feet.