I found this to be a slight challenge because I was having difficulty understanding how to get these calculations with so many measurements. To calculate the volume of a cylinder you need to know its height and the area of its base. Total volume of a cylinder shaped tank is the area A of the circular end times the length l.
In the above figure the radius of the circular base is r and the height is h.
Volume of a Cylinder Formula. Calculating the Volume of the Cylinder 1. Total volume of a cylinder shaped tank is the area A of the circular end times the length l. P 2 is the atmospheric pressure 1 atm - 147 psi V 2 is the volume of gas at pressure P 2 liter For example an AL sized cylinder is filled with nitrogen at 2000 psi.