Enter the diameter and height of a cylindrical tank in inches into the calculator to determine the gallons per inch of the tank.
Gallons Per Inch Formula
The following formula is used to calculate the gallons per inch of a cylindrical tank.
GPI = (π * (D/2)^2 * H) / 231
Variables:
- GPI is the gallons per inch
- D is the diameter of the tank (inches)
- H is the height of the liquid in the tank (inches)
To calculate the gallons per inch, use the volume formula for a cylinder to find the volume in cubic inches, then convert the volume to gallons by dividing by 231 (since 1 gallon is equivalent to 231 cubic inches).
What is Gallons Per Inch?
Gallons per inch is a measure of the volume of liquid that occupies a one-inch height in a cylindrical tank. It is a useful metric for determining the amount of liquid in a tank based on the liquid level’s height. This measurement is particularly important in industries where precise volume measurements are necessary, such as in chemical processing or water treatment facilities.
How to Calculate Gallons Per Inch?
The following steps outline how to calculate the gallons per inch of a cylindrical tank.
- First, measure the diameter of the tank (D) in inches.
- Next, measure the height of the liquid in the tank (H) in inches.
- Use the formula GPI = (π * (D/2)^2 * H) / 231 to calculate the volume in cubic inches.
- Finally, convert the volume to gallons per inch by dividing by 231.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Diameter of the tank (D) = 36 inches
Height of the liquid in the tank (H) = 1 inch