Water Flow Converter
Convert water flow between GPM, LPM, cubic meters per hour, and cubic feet per second.
Type in any field and the others update automatically.
Type in any field — the others update instantly.
Water flow rate conversion factors.
Base conversions:
- 1 GPM (US gallon/min) = 3.7854 LPM (liters/min)
- 1 GPM = 0.2271 m3/h (cubic meters/hour)
- 1 GPM = 0.002228 ft3/s (cubic feet/second)
- 1 LPM = 0.2642 GPM
- 1 m3/h = 4.4029 GPM = 16.667 LPM
Common flow rates:
- Shower head: 2.0-2.5 GPM (7.6-9.5 LPM)
- Kitchen faucet: 1.5-2.2 GPM (5.7-8.3 LPM)
- Garden hose: 5-10 GPM (19-38 LPM)
- Fire hydrant: 500-1,500 GPM (1,893-5,678 LPM)
- Swimming pool pump: 40-80 GPM (151-303 LPM)
US vs Imperial gallons:
- 1 US gallon = 3.785 liters
- 1 Imperial gallon = 4.546 liters
- This converter uses US gallons.