Engineering Units
Flow Rate Converter
Flow rate is fluid volume per unit time, in mΒ³/s. L/s and L/min serve plumbing, and GPM is used in US systems β distinguished from the imperial gallon.
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Popular conversions
Cubic Meter per SecondCubic Meter per HourLiter per SecondLiter per MinuteCubic Meter per HourLiter per SecondLiter per MinuteLiter per HourCubic Meter per SecondCubic Foot per SecondCubic Foot per SecondCubic Foot per MinuteLiter per SecondUS Gallon per MinuteUS Gallon per MinuteImperial Gallon per Minute
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About this category: Flow Rate
Flow rate is fluid volume per unit time, in mΒ³/s. L/s and L/min serve plumbing, and GPM is used in US systems β distinguished from the imperial gallon.
Flow rate is volume per time. Always distinguish the US gallon (GPM US) from the imperial gallon (GPM UK).
Practical uses
- Water, drainage and irrigation design
- Pumps, pipes and channels
- Hydraulic and cooling systems
Available units
| Unit | Name | Definition | Classification |
|---|---|---|---|
| mΒ³/s | Cubic Meter per Second | The SI base unit of flow rate. | SI Derived |
| mΒ³/h | Cubic Meter per Hour | One mΒ³/h = 0.2778 L/s. | SI Derived |
| L/s | Liter per Second | One litre per second. | SI Derived |
| L/min | Liter per Minute | One litre per minute. | SI Derived |
| L/h | Liter per Hour | One litre per hour. | SI Derived |
| ftΒ³/s | Cubic Foot per Second | Cubic feet per second, common in US hydrology. | Non-SI |
| ftΒ³/min | Cubic Foot per Minute | Cubic feet per minute, common in HVAC. | Non-SI |
| GPM (US) | US Gallon per Minute | GPM using the US gallon = 0.0631 L/s. | Non-SI |
| GPM (UK) | Imperial Gallon per Minute | GPM using the imperial gallon, larger than the US one. | Non-SI |
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Popular Flow Rate conversions
Cubic Meter per SecondCubic Meter per HourLiter per SecondLiter per MinuteCubic Meter per HourLiter per SecondLiter per MinuteLiter per HourCubic Meter per SecondCubic Foot per SecondCubic Foot per SecondCubic Foot per MinuteLiter per SecondUS Gallon per MinuteUS Gallon per MinuteImperial Gallon per Minute
Common engineering conversions
Megapascal β Pound per Square InchMegapascal β BarKilogram-force per square centimetre β MegapascalPound per Square Inch β BarMPa = N/mmΒ² (identical)Kilonewton β NewtonKilonewton β Kilogram-forceCubic Meter β Cubic FootSquare Meter β Square FootKilogram per Cubic Meter β Pound per Cubic FootMillimeter β InchCentimeter β InchMeter β FootNewton-metre β Pound-force-footCubic Meter per Second β Cubic Meter per Hour