Convert volume flow rate units including gallons per minute, liters per minute, cubic feet per minute, cubic meters per second, gallons per hour, barrels per day, and more.
Gallons per minute to liters per minute:
1 GPM = 3.78541 L/min
Liters per minute to gallons per minute:
1 L/min = 0.264172 GPM
Cubic feet per minute to liters per minute:
1 CFM = 28.3168 L/min
Cubic meters per second to gallons per minute:
1 m³/s = 15,850.3 GPM
Volumetric flow rate conversions are useful for pump sizing, pipe systems, water supply, irrigation, drainage, HVAC airflow, hydraulic systems, process piping, and fluid engineering calculations.
Use this converter when comparing metric, U.S. customary, liquid, gas, and industrial flow units.
Your result shows the entered volumetric flow rate converted from the starting unit into the selected ending unit. The calculator also shows the conversion rate used so you can verify the calculation.
For engineering and fluid system work, make sure the flow rate unit matches the pump curve, pipe chart, design formula, equipment rating, or specification you are using.
Volumetric flow rate is the amount of fluid volume moving through a system per unit of time.
GPM means gallons per minute. It is commonly used for water flow, pumps, irrigation, and plumbing systems.
CFM means cubic feet per minute. It is commonly used for airflow, ventilation, fans, compressors, and HVAC systems.
One U.S. gallon per minute equals approximately 3.78541 liters per minute.
This converter is designed for flow rate magnitude conversions, so it uses non-negative values.