How is cubic weight calculated?
A.To calculate cubic weights, multiply the length by width by height in inches. After you get that number it is then divided by 1728. For example: a box that is 24 inches by 24 inches by 24 inches: 24 X 24 X 24 =13,824, 13,824 / 1728 = 8.The final calculation would be 8 cubic feet. Maximum Express charges 10 lbs per 1 square cubic foot. Q.