What is the calculation for cubic feet?

To determine the volume of a three-dimensional object in cubic feet, the formula used is multiplying the three dimensions: length, width, and thickness (or height). This calculation gives you the total amount of space occupied by the object. Each dimension represents one linear measurement, and when you multiply these together, the result is a volume measurement expressed in cubic feet.

This principle applies universally to rectangular prisms or any shape where these three dimensions can be clearly defined. Multiplying length by width provides the area of the base, and then multiplying that area by the thickness extends that area into the third dimension, yielding the volume. Thus, the correct calculation method for cubic feet is indeed to multiply the length, width, and thickness together.