Gallon (US) per minute (GPM)

One US liquid gallon every minute. The usual US unit for pumps, plumbing and fire hoses.

What is a US gallon per minute?

Symbol: GPM
Quantity: Flow Rate
Unit system: US customary
Definition: One US liquid gallon every minute. The usual US unit for pumps, plumbing and fire hoses.
Exact: Yes, the value is exact by definition
Source: NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used in the United States for pumps, well yield, plumbing fixtures, irrigation and fire hoses.

Gallon (US) per minute in other flow rate units

1 GPM = 0.0000630901964 m³/sCubic meter per second
1 GPM = 0.22712470704 m³/hGallon (US) per minute to Cubic meter per hour converter
1 GPM = 0.003785411784 m³/minCubic meter per minute
1 GPM = 0.0630901964 L/sGallon (US) per minute to Liter per second converter
1 GPM = 3.785411784 L/minGallon (US) per minute to Liter per minute converter
1 GPM = 227.12470704 L/hLiter per hour
1 GPM = 3785.411784 mL/minMilliliter per minute
1 GPM ≈ 0.002228009259 ft³/sCubic foot per second
1 GPM ≈ 0.1336805556 CFMCubic foot per minute
1 GPM = 60 GPHGallon (US) per hour
1 GPM = 1440 GPDGallon (US) per day
1 GPM = 0.00144 MGDMillion gallons (US) per day
1 GPM ≈ 0.8326741846 imp gal/minGallon (imperial) per minute
1 GPM ≈ 34.28571429 bbl/dBarrel (oil) per day

Gallon (US) per minute quick reference

Gallon (US) per minute in other units
Gallon (US) per minute	Cubic meter per hour	Liter per second	Liter per minute
1 GPM	= 0.22712470704 m³/h	= 0.0630901964 L/s	= 3.785411784 L/min
10 GPM	= 2.2712470704 m³/h	= 0.630901964 L/s	= 37.85411784 L/min
100 GPM	= 22.712470704 m³/h	= 6.30901964 L/s	= 378.5411784 L/min
1000 GPM	= 227.12470704 m³/h	= 63.0901964 L/s	= 3785.411784 L/min

Where the US gallon per minute fits

The next smaller flow rate unit is the liter per minute (L/min). 1 GPM = 3.785411784 L/min, and 1 L/min ≈ 0.2641720524 GPM.

The next larger flow rate unit is the imperial gallon per minute (imp gal/min). 1 GPM ≈ 0.8326741846 imp gal/min, and 1 imp gal/min ≈ 1.200949926 GPM.

Frequently asked questions

How many cubic meters per hour are in one US gallon per minute?: One US gallon per minute = 0.22712470704 m³/h (cubic meters per hour).
How many liters per second are in one US gallon per minute?: One US gallon per minute = 0.0630901964 L/s (liters per second).
How many liters per minute are in one US gallon per minute?: One US gallon per minute = 3.785411784 L/min (liters per minute).