##### Volume, Surface Area, and Diagonal of a Rectangular Box

The box calculator will also tell you the dimensions of the box if you input the values for V, S, and D. For example, if a box has a volume of 4000 cubic inches, a surface area of 1600 square inches, and a diagonal of 30 inches, then its dimensions are 20, 20, and 10. Formulas V = WLH S = 2(WL + WH + LH) D = sqrt(W 2 + L 2 + H 2)