Pipe Flow Converter

Convert pipe flow rate units including gallons per minute, gallons per hour, liters per minute, cubic feet per second, cubic feet per minute, cubic meters per hour, and cubic meters per second.

Convert Pipe Flow

1 GPM = 3.78541 liters per minute
Your pipe flow result will appear here.

Common pipe flow conversions

GPM to LPM:
1 GPM = 3.78541 L/min

GPM to CFS:
1 GPM = 0.002228 ft³/s

CFS to GPM:
1 ft³/s = 448.831 GPM

m³/h to GPM:
1 m³/h = 4.40287 GPM

Where pipe flow conversions are used

Pipe flow conversions are useful for plumbing, irrigation, drainage, pumps, water lines, hydronic heating, wells, sprinklers, fluid systems, and construction planning.

Use this converter when switching between imperial, metric, water flow, air flow, and engineering flow rate units.

What your pipe flow result means

Your result shows the entered pipe flow rate converted from the starting unit into the selected ending unit. The converter also shows the conversion rate used so you can verify the calculation.

This converter changes flow rate units only. Actual pipe performance depends on pipe diameter, pipe length, fittings, pressure, elevation, friction loss, pump capacity, and fluid type.

Pipe flow converter tips

Frequently asked questions

What does GPM mean?

GPM means gallons per minute. It measures how many gallons flow through a pipe or system each minute.

How do I convert GPM to liters per minute?

Multiply GPM by 3.78541. For example, 10 GPM equals about 37.8541 liters per minute.

How many GPM are in 1 cubic foot per second?

1 cubic foot per second equals about 448.831 gallons per minute.

Is pipe flow the same as pipe velocity?

No. Pipe flow is volume per time, such as gallons per minute. Pipe velocity is distance per time, such as feet per second.

Does this converter calculate pressure loss?

No. This converter only changes flow rate units. Pressure loss depends on pipe size, length, fittings, roughness, and flow velocity.