Gallon per minute (US gal/min, gpm, or GPM) is unit of volume flow rate that people use to measure the amount of water that moves through a pipe, e.g., during showering. It is equal to 3.785411784 liters per minute.

To calculate GPM, you need to know the volume of your container and the time it takes for the container to fill. You then divide the total number of seconds it took to fill the container by 60, which will give you the GPM measurement. This method can be used for a variety of containers, including buckets and water-saving showerheads.

Another way to calculate GPM is by using a pressure tank or a pressure gauge. This method is more precise than measuring the length of time it took to fill a container. However, you must first determine the pressure in pounds per square inch (PSI). To do this, measure the pressure inside the tank and subtract atmospheric pressure. Then, multiply the result by the density of water.

This is just one example of how our online gallons per minute calculator can help you find the right measurements for your needs. Our GPM calculator works with a wide range of units and converts LPM to GPM, GPM to liters per minute, and much more. Learn more about the GPM definition, GPM unit, and formula by reading our article. This will make it easier to understand how our gallons per minute calculator works and what it can do for you. gpm to lpm converter