Conversion Gallon per minute is a unit of volume flow rate, which measures the amount of liquid passing through a given area in a set time. It is equal to a cubic meter per second (m3/s), or 1.4883249231 liters per second. Other units that belong to the category of Volume Flow Rate include Acre Foot per Month (afm), Cubic Yard Per Minute (yd3/min), Barrels Per Day (bbl(US, petrol)/day), Cubic Meter Per Hour (m3/h), Million Litres per Day (MLD), and Lusec.
Gallons per Minute is a useful measurement for water pumps, garden hoses and other liquid flow applications. For example, the flow rate of a garden hose is typically between 9 and 17 GPM. Pump specifications usually refer to GPM at a certain Head measurement, and choosing the correct pump for your needs is critical in terms of efficiency and longevity.
GPM is also used to describe the amount of water pressure in a tank, or to express a certain pump’s capability when operating at a given Head. To calculate this, measure the tank’s pressure using a pressure gauge, subtract atmospheric pressure from the result, divide by the density of water, then multiply by the cross-sectional area of the pipe. This calculation will give you the pump’s GPM at a given Head. For example, a standard showerhead has a GPM of around 2 gallons per minute in the US. If you want to conserve water, look for low-GPM showerheads. The best ones are usually labeled as Water-saving showerheads, but they may have an additional name to distinguish them from regular showerheads. gpm to lpm