Unit converters

Flow rate converter

US gallons per minute to litres per minute and second, cubic metres per hour and cubic feet per minute.

Works in your browser. Nothing is uploaded.
gpm

Litre per minute

–

gpm is US gallons per minute; cfm is cubic feet per minute, the usual unit for air.
  • Litre per second–
  • Litre per minute–
  • Cubic metre per hour–
  • Cubic metre per second–
  • US gallon per minute–
  • Cubic foot per minute–

Unit converters

How to use it

  1. Type the value

    The number you have, like 5 for 5 gpm.

  2. Pick its unit

    L/s, L/min, m³/h, m³/s, gpm or cfm.

  3. Read or copy

    Every other unit follows. Tap copy beside the one you need.

Tips

  • Fill a bucket

    Time how long a 10-litre bucket takes to fill to read a tap’s flow in L/min.

  • Pumps

    Pump charts often use m³/h or gpm.

  • Air

    Fans and ducts are rated in cfm or m³/h.

In the app

Unit converter in Angle Meter

  • Every unit of a kind on one screen
  • Typed conversions like 5′ 7 3/8″ to mm
  • Pinned unit pairs and a conversion list
  • Voice commands
Get it onGoogle PlayComing soon to the App Store
Unit converter guide ›
Convert measurements between units

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