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ConvertiPal

Gallons per Minute to Liters per Minute Converter

Convert US gallons per minute to liters per minute instantly. Type a value, change either unit, or press swap to go the other way. 1 US gallon per minute = 3.7854118 liters per minute.

3.7854118

1 US gallon per minute = 3.7854118 liters per minute

How to convert US gallons per minute to liters per minute

liters per minute = US gallons per minute × 3.785411784

To convert US gallons per minute to liters per minute, multiply the value by 3.785411784. To go back from liters per minute to US gallons per minute, divide by the same number (or multiply by 0.2641720524).

Worked examples

  • 1.5 gpm: 1.5 × 3.785411784 = 5.6781177 L/min
  • 2.5 gpm: 2.5 × 3.785411784 = 9.4635295 L/min
  • 5 gpm: 5 × 3.785411784 = 18.927059 L/min
Mental math shortcut

Multiply gpm by 3.8. A 5 gpm pump delivers about 19 liters per minute.

Gallons per Minute to Liters per Minute conversion table

Gallons per Minute to Liters per Minute

gpmL/min
0.51.8927059
13.7854118
1.55.6781177
2.59.4635295
518.927059
1037.854118
1556.781177
2075.708236
50189.27059
100378.54118

Liters per Minute to Gallons per Minute

L/mingpm
0.50.13208603
10.26417205
1.50.39625808
2.50.66043013
51.3208603
102.6417205
153.9625808
205.283441
5013.208603
10026.417205

Flow Rate equivalents

See how one US gallon per minute and one liter per minute compare with every other flow rate unit on the site.

1 US gallon per minute equals

UnitValue
cubic meters per second (m³/s)0.0000630902
cubic meters per hour (m³/h)0.2271247
liters per minute (L/min)3.785412
liters per second (L/s)0.0630902
cubic feet per minute (cfm)0.1336806
cubic feet per second (cfs)0.002228009

1 liter per minute equals

UnitValue
cubic meters per second (m³/s)0.0000166667
cubic meters per hour (m³/h)0.06
liters per second (L/s)0.01666667
US gallons per minute (gpm)0.2641721
cubic feet per minute (cfm)0.03531467
cubic feet per second (cfs)0.0005885778

When you need to convert US gallons per minute to liters per minute

Pumps, showerheads, irrigation and fire hose specifications in the US are given in gallons per minute, while equipment in most other countries is rated in liters per minute. Converting is essential for comparing pump capacities or checking that a fixture meets local water regulations.

About the units

US gallon per minute (gpm)

US gallons per minute is the standard unit for pumps, showers and irrigation in the United States.

Liter per minute (L/min)

Liters per minute is used for taps, showers, small pumps and medical gas flow.

Frequently asked questions

How do I convert US gallons per minute to liters per minute?

Multiply the number of US gallons per minute by 3.785411784. For example, 10 US gallons per minute × 3.785411784 = 37.85411784 liters per minute.

How many liters per minute are in one US gallon per minute?

There are 3.785411784 liters per minute in one US gallon per minute.

How many US gallons per minute are in one liter per minute?

There are 0.2641720524 US gallons per minute in one liter per minute.

What is a 2.5 gpm shower in liters per minute?

2.5 gpm is 9.46 L/min. Many European regulations aim for about 6 to 9 L/min, so US showerheads can be on the high side.

Can I convert other flow rate units with this tool?

Yes. Use the From and To drop-downs in the converter to choose any flow rate unit, or press the swap button to reverse the conversion. All calculations use internationally defined conversion factors.