Flow Rate Converter
Convert gallons per minute, liters per minute, cubic feet per minute, cubic meters per hour and more.
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- Result
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- Exact?
In Every Unit
| Unit | Value |
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How to Convert Flow Rate Units
Flow rate is volume per unit time, so each factor combines a volume factor and a time factor. One US gallon per minute is 3.785411784 L/min.
L/min = gpm × 3.785412 m³/h = cfm × 1.699011 gpm = cfs × 448.831
Worked Example
Common Conversions
| From | Equals |
|---|---|
| 1 gpm | 3.785412 L/min |
| 1 L/min | 0.2641721 gpm |
| 1 cfm | 1.699011 m³/h |
| 1 m³/h | 4.402868 gpm |
| 1 gpm | 0.002228009 cfs |
| 1 L/s | 15.85032 gpm |
| 1 gph | 3.785412 L/h |
Unit Definitions
| Unit | Equals | Exact? |
|---|---|---|
| Milliliters per minute (mL/min) | 0.001 L/min | Exact |
| Liters per second (L/s) | 60 L/min | Exact |
| Liters per minute (L/min) | 1 L/min | Exact |
| Liters per hour (L/h) | 0.01666666667 L/min | Exact |
| Cubic meters per hour (m³/h) | 16.66666667 L/min | Exact |
| Cubic meters per second (m³/s) | 60,000 L/min | Exact |
| US gallons per minute (gpm) | 3.785411784 L/min | Exact |
| US gallons per hour (gph) | 0.0630901964 L/min | Exact |
| US gallons per day (gpd) | 0.002628758183 L/min | Exact |
| Cubic feet per minute (cfm) | 28.31684659 L/min | Exact |
| Cubic feet per second (cfs) | 1,699.010796 L/min | Exact |
| UK gallons per minute (UK gpm) | 4.54609 L/min | Exact |
| Oil barrels per day (bbl/d) | 0.1104078437 L/min | Exact |
| Million US gallons per day (MGD) | 2,628.758183 L/min | Exact |
Factors follow NIST Special Publication 811, Appendix B. "Exact" means the unit is defined as that value; results are rounded only for display.
Tips
Use gpm for water and cfm for air. To work out flow from pipe size and velocity, see the pipe flow rate calculator.