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Conversionsmeasurement

Flow Rate Converter

Flow rate across litres per minute, cubic metres per hour, US gallons per minute and cubic feet per minute. Pump and compressor specifications rarely use the same unit as the pipe standard they attach to.

Also called: lpm to gpm, cfm converter, pump flow converter.

Result
0.264172

1 Litre per minute is 0.264172 US gallon per minute. The factor is 0.2641720524, and the inverse is 3.785411784. The table below gives the same value in every flow unit at once.

Conversion factor
0.2641720524
Inverse factor
3.785411784
Value in litre per second
0.0166666667
Converting from
Litre per minute
Converting to
US gallon per minute
Dimension
flow
How this is calculated

The same value in every flow unit

UnitValue
Litre per second0.02
Litre per minute1
Cubic metre per hour0.06
US gallon per minute0.26
Cubic foot per minute0.04
Method and background

How this is calculated

Flow is volume per unit time, held against litres per second. The units in use are a matter of trade rather than physics: water pumps are usually specified in litres per minute or gallons per minute, ventilation in cubic feet per minute, and industrial process flow in cubic metres per hour.

result = value * factor_from / factor_to
k
Each unit's size in litre per second

Worked examples

Each of these is asserted on every build. If a change to the engine ever moved one of these answers, the build would fail before the page could print it.

a litre per second in litres per minute

Value
1
From
Litre per second
To
Litre per minute

Result60

arithmetic identity

Open this example

a US gallon per minute in litres per minute

Value
1
From
US gallon per minute
To
Litre per minute

Result3.785412

the gallon factor, with the time units cancelling

Open this example

no flow is no flow

Value
0
From
Cubic foot per minute
To
Litre per second

Result0

degenerate case

Open this example