Gallon Per Minute Conversion

Gallons per minute (GPM) is a common unit used to measure the volume of liquid flowing through a pipe in a given amount of time. This is an important metric for wastewater operators to know, as it is a standard way to report the flow rate of water in a pipe or system. GPM is also a common unit for reporting and monitoring the water quality of an industrial wastewater treatment plant.

How to calculate GPM
The most accurate method for calculating the flow rate of water in GPM is to use a 1 gallon container and time how long it takes to fill completely with water. For best results, multiple test trials should be performed to ensure an accurate average. This value is then divided by 60 to find the GPM.

Alternatively, you can use a commercial GPM calculator to determine the flow rate of water in a given container or system. These types of GPM calculators are commonly found in restaurants, hospitals and other facilities that require a high volume of water to be delivered.

If you need to convert from pounds per hour to gallons per minute, simply multiply the pound-per-hour rate by the density of the fluid and divide by 60. You can also use a GPM calculator to convert from psi to gpm by adding the pressure inside the tank, subtracting atmospheric pressure, and dividing by the pipe diameter. Lastly, you can calculate the flow rate of water in GPM by dividing the velocity by the cross-sectional area of the pipe.  gallons per minute to litres per minute