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Flow Rate Converter
Convert flow rate between L/min, m³/h, GPM, and CFM.
Volume flow, any unit
Flow rate is quoted in gallons per minute for plumbing, cubic feet per minute for air, and litres or cubic metres in metric systems. This converter bridges them.
A 10 GPM flow is about 37.9 litres per minute. Enter a flow in any unit to read it in the others.
Handy and private
The conversion runs in your browser, so nothing you enter is uploaded.
Frequently Asked Questions
Which units does it cover?
Litres per second and minute, cubic metres per hour, US gallons per minute, and cubic feet per minute.
Where are these used?
Plumbing and HVAC often use GPM or CFM, while metric systems use litres or cubic metres, so conversion is common.
Is it exact?
Yes. It uses precise factors through a cubic-metres-per-second base.
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