gallon (UK)/minute Unit Converter

Definition of gallon (UK)/minute unit

Gallons per minute (UK gal/min) is a unit of volumetric flow rate describing how many Imperial gallons of fluid pass a point in one minute. One UK gallon equals 4.54609 litres, so 1 gal/min equals approximately 0.07577 litres per second.

History of gallon (UK)/minute unit

The gallon per minute developed from the Imperial system of measurement established in Britain through the Weights and Measures Act of 1824. That system defined the Imperial gallon as the volume of ten pounds of water under specified conditions, replacing earlier, variable gallons. Engineers and industries then expressed liquid delivery and pumping capacity as gallons moved in a minute. The unit spread throughout the British Empire and remains familiar in the United Kingdom and some Commonwealth contexts. Although metric units are now preferred scientifically, UK gal/min survives in plumbing, water services.

Applications of gallon (UK)/minute unit

Today, UK gallons per minute appear in domestic and commercial plumbing, water-supply systems, irrigation, pump ratings, and pressure-washer specifications. For example, a pump may be rated at 10 gal/min to indicate its delivery capacity. The unit is also used for measuring fuel, coolant, and chemical flow, especially when equipment serves markets using Imperial measurements.

Complete list of gallon (UK)/minute unit conversion