Gallons Per Minute (GPM) Calculator

Your details

Choose which value you want the calculator to find.
Total volume of liquid (e.g. tank size, bucket size).
Duration over which the liquid flows.
Choose which unit the primary result is shown in. All other conversions appear below.
Size of the tank you want to fill or drain. Used only for the time chart.
US gal
ResultMedium flow (residential system)
10

The solved value in your chosen unit

GPM (US gal/min)10
GPH (US gal/hr)600
L/min37.854
L/s0.6309
m³/hr2.2712
ft³/min (CFM)1.3368
Tank fill time50.0 min
10 GPM
Low flow<2.5Fixture2.5-5Hose / tap5-10Pump / system10+

Your flow rate is 10.000 GPM (37.85 L/min).

  • A garden hose at full pressure typically delivers 9-17 GPM, so this rate is consistent with outdoor watering.
  • Hourly equivalent: 600.0 US gallons per hour (GPH).
  • A 500-gallon tank would fill or drain in about 50.0 min at this rate.

Next stepTo check whether your pipes can handle this flow without excessive velocity, look up the recommended GPM capacity for your pipe diameter (typically 1/2" pipe handles 2-4 GPM, 3/4" handles 4-8 GPM, 1" handles 8-15 GPM).

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