Convert flow rates between varying units like GPM, CFM, and LPM.
Input Flow
Conversions
Converting flow rates?
Enter a flow rate value and select its unit to see equivalent rates in LPM, GPM, and CFM.
About this calculator
Overview
Liters per minute (LPM) is a metric unit of volumetric flow rate. It is commonly used to measure water flow in plumbing, air flow in HVAC, and fuel flow in engines.
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Pro Tips
GPM usually refers to US Gallons. Imperial Gallons are larger (1 Imp Gal ≈ 4.546 L).
CFM is standard for air compressors and HVAC ducts.
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Fun Facts
"A standard kitchen faucet flows at about 2.2 GPM (8.3 LPM)."
"Fire hoses can flow anywhere from 100 GPM to over 1000 GPM depending on the size."
"The human heart pumps about 5 liters of blood per minute at rest."
