Gallon per minute is a unit of volume that measures the amount of fluid that passes though a cross-sectional area in a certain period of time. It is an SI derived unit. It has the formula: Flow Rate (Velocity) = Volume / Time. For more information about gallons per minute, read the article Flow Rate and Its Relation to Velocity from LibreTexts Physics website.

The simplest way to calculate the number of gallons per minute is to divide the total volume of the container by the amount of time it takes to fill the container. For example, to find the water flow rate of a garden hose, get a bucket and measure how many seconds it takes for it to fill up. Then divide that number by 60 to obtain the gallons per minute of water it can produce.

Other units in the category of Volume flow rate include Acre Foot Per Month (acre-ft/month), Barrel (US, Petrol) Per Day (bbl (US, petrol)/day), Cubic Centimeter Per Second (cm3/s), Cubic Foot Per Minute (cfm, ft3/min), Cubic Inch Per Minute (in3/min), Cubic Meter Per Hour (m3/h), Liter Per Minute (l/min), Million Gallons Per Day, Million Liters Per Day and Lusec.

Our free online Gallons Per Minute calculator enables you to convert the amount of water that flows through a specific pipe in gallons per minute. Simply enter the value that you want to convert into the first field, then select a different unit from the drop-down menu and click the “Recalculate” button. gpm to lpm