FLOW RATE CONVERTER

Flow rate converter

Enter a flow rate, get it in every unit instantly.

gpm

How do I convert GPM to liters per minute?

Multiply by 3.785: 10 gallons per minute is 37.85 L/min, or 0.631 L/s.

How do I convert m³/h to GPM?

Multiply by about 4.403: a 1 m³/h pump moves 4.40 US gallons a minute, and 10 GPM is 2.27 m³/h.

What is CFM?

Cubic feet per minute, used for air flow — fans, ducts, compressors. 1 CFM is 28.32 liters per minute.

Are these US or UK gallons?

US gallons of 231 cubic inches (3.785 L). A UK gallon is 4.546 L, so UK GPM figures are about 20% larger in volume.

How do I measure my flow rate?

Time how long a bucket of known size takes to fill — the GPM calculator works it out from the bucket and the seconds.