Convert water flow units including gallons per minute, gallons per hour, liters per minute, liters per second, cubic feet per second, cubic meters per hour, acre-inches per hour, and acre-feet per day.
GPM to LPM:
1 GPM = 3.78541 L/min
CFS to GPM:
1 ft³/s = 448.831 GPM
m³/h to GPM:
1 m³/h = 4.40287 GPM
Acre-foot per day to GPM:
1 acre-ft/day ≈ 226.32 GPM
Water flow conversions are useful for plumbing, irrigation, drainage, wells, pumps, sprinklers, water lines, hydronic heating, rainwater systems, and farm water planning.
Use this converter when switching between household water flow, irrigation flow, pump flow, drainage flow, and large-volume water delivery units.
Your result shows the entered water flow rate converted from the starting unit into the selected ending unit. The converter also shows common reference values such as GPM, LPM, CFS, and cubic meters per hour.
This converter changes water flow units only. Actual water system performance depends on pipe size, pressure, pump curve, friction loss, elevation, fittings, valves, and water demand.
GPM means gallons per minute. It measures how many gallons of water flow through a pipe, pump, fixture, or system each minute.
Multiply GPM by 3.78541. For example, 10 GPM equals about 37.8541 liters per minute.
1 cubic foot per second equals about 448.831 gallons per minute.
1 acre-foot is about 325,851 gallons of water.
No. Water flow is volume per time, such as gallons per minute. Water pressure is force per area, such as PSI.