Flow Rate Converter
Convert liters/min, gallons/hour, cubic meters/hour and more.
About Flow Rate
Flow rate (volumetric) measures how much fluid passes a point per unit time: Q = A × v (cross-section × velocity). The SI unit is m³/s, but litres per minute (L/min) and gallons per minute (GPM) are more practical for plumbing and pumps. Industrial processes often use m³/h.
Common Conversions
- 1 L/min = 0.2642 GPM (US)
- 1 GPM (US) = 3.785 L/min
- 1 m³/h = 16.667 L/min
- 1 m³/s = 1,000 L/s = 60,000 L/min
- 1 CFM = 28.317 L/min
Practical Examples
- Household tap: 6–15 L/min
- Shower head: 8–15 L/min
- Garden hose: ~20 L/min
- Heart output (adult at rest): ~5 L/min
- Large industrial pump: 1,000+ m³/h