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Convert between all common flow rate units including L/min, GPM, CFM, m3/h, and more.
1.00000
0.264172
0.0599999
0.0353147
0.0166667
15.8503
59.9999
1000.00
| Unit | Abbreviation | 1 L/min = |
|---|---|---|
| Liters per Minute | L/min | 1 |
| Gallons per Minute | GPM | 0.264172 |
| Cubic Meters per Hour | m3/h | 0.06 |
| Cubic Feet per Minute | CFM | 0.0353147 |
| Liters per Second | L/s | 0.0166667 |
| Gallons per Hour | GPH | 15.8503 |
| Liters per Hour | L/h | 60 |
| Milliliters per Minute | mL/min | 1000 |
Flow rate (or volumetric flow rate) measures the volume of fluid passing through a given cross-section per unit time. It is a fundamental measurement in fluid dynamics, HVAC systems, hydraulics, and process engineering. Understanding flow rate is essential for sizing pumps, designing piping systems, and ensuring adequate ventilation.
Common applications include water supply systems, industrial cooling, medical devices, fuel systems, and air handling units. The choice of unit often depends on the industry and regional standards - North America typically uses GPM and CFM, while most other regions prefer metric units like L/min and m3/h.
Volumetric flow rate measures volume per time (L/min, GPM), while mass flow rate measures mass per time (kg/s). They are related by fluid density.
In North America, CFM is standard for air flow. In Europe and Asia, m3/h is more common. For liquid systems, GPM (US) or L/min (metric) are typical.
Flow meters measure flow rate using various methods: turbine, ultrasonic, magnetic, differential pressure, or positive displacement, depending on the application.
Temperature affects fluid density and viscosity, which can impact actual flow rate vs. standard conditions. Gas flows are particularly sensitive to temperature and pressure.