If you are storing materials in a warehouse, you may come across the term "case cube." Calculating the case cube of a box accurately is important in making sure that the warehouse space allocated for your box is sufficient. The case cube of a box does not depend on the box's contents or weight; rather, it depends on the box's size, or volume.
Measure the three dimensions of the box in inches based on the height, length and width of the box. Record the dimensions as you measure them.
Multiply the three values together. This will give you the volume of the box in inches.
Divide the product of Step 2 by 1,728. The case cube of the box is measured in feet, not in inches. Because there are 12 inches in a foot, a cubic foot has the dimensions 12 by 12 by 12, equaling 1,728 cubic inches. In dividing by 1,728, you are converting cubic inches into cubic feet. This is similar to dividing a number of inches by 12 to convert the value to feet.