GPM Calculator

Gallons per minute calculates how many gallons of water go through in one minute.

How to Calculate Gallons per Minute

GPM stands for gallons per minute, it is a standard unit for water flow rate.

To calculate gallons per minute, divide the volume of water by how many minutes it takes the amount of water to go through.

GPM = Volume / Time

while
Volume = volume of water in gallons.
Time = time in minutes.

You can also use this calculator to calculate the flow rate of a gallon per hour, gallon per second, gallon per day, cubic feet per second, cubic feet per minute, cubic feet per hour, or cubic feet per day.