General Engineering
Flow Rate Converter
Convert water and fluid discharge between SI, cubic feet per second, gallons per minute, and MGD.
Live unit conversion
Converted value
35.314667
cfs
1 m3/s = 35.314667 cfs
Conversion Basis
Flow-rate conversion is used in drainage, pumping, water supply, dewatering, and seepage calculations. This tool converts volumetric flow only; it does not correct for density, temperature, or compressibility.
target flow = source flow x source-to-cubic-meter-per-second factor / target factor
Common Examples
- 1 m3/s = 35.3147 cfs
- 1 cfs = 448.831 gpm
- 1 MGD = 1.54723 cfs
Engineering Use and Limitations
- MGD is based on US gallons in this converter.
- Average, peak, design, and measured flows are different bases even when expressed in the same unit.
- For open-channel calculations, keep area, hydraulic radius, and velocity units consistent with the selected equation coefficient.
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