Formula and method
Volumetric flow = volume/time. Liters per minute = liters/seconds × 60.
Worked example
Collecting 10 L in 30 seconds measures an average flow of 20 L/min, or 1.2 m³/hour.
Water Flow Calculator
Calculate average flow from the volume collected over a measured time and convert among common flow-rate units.
Printed from Calxy · https://www.calxy.net/other/water-flow-calculator
Measured average water flow20.0000 L/min
L
0 – 1000000000
seconds
0.000001 – 1000000000
Measured average water flow
20.0000 L/min
- Liters per second0.3333 L/s
- Cubic meters per hour1.2000 m³/h
- US gallons per minute5.2834 US gal/min
A timed-container measurement, not a pressure-based pipe-flow simulation. Keep the supply conditions steady and repeat measurements for a useful average.
How this was calculated
Average volumetric flow = collected volume ÷ elapsed time.
Convert liters per second to the requested flow units.
Frequently asked questions
Can flow be predicted from pressure alone?
Not with this tool. Pipe dimensions, friction, valves and the supply system also matter. This calculator uses a measured collected volume.
Last updated . Results are estimates for informational purposes only.