Calculating the volume of a tube essentially involves the same formula as a cylinder (volume=pr 2 h), except that in this case the diameter is used rather than the radius, and length is used rather than height. The formula therefore involves measuring the

Volume of a box. The volume formula for a rectangular box is height x width x length, as seen in the figure below:. To calculate the volume of a box or rectangular tank you need three dimensions: width, length, and height.

To calculate volume with a cube, use the formula v = s^3, where s is the length of the sides of the cube. To calculate the volume of a cylinder, use the formula v = hπr^2, where r is the radius of the base, h is the height, and π is pi.