Convert flow rate units — m³/s, L/s, L/min, ft³/s, gallon/min and more.
| Unit | Name | Value |
|---|---|---|
| m³/min | Cubic Meter/Minute | 59.9988 |
| m³/h | Cubic Meter/Hour | 3597.1223 |
| L/s | Liter/Second | 1000 |
| L/min | Liter/Minute | 59998.8 |
| ft³/s | Cubic Foot/Second | 35.314475 |
| ft³/min | Cubic Foot/Minute | 2118.6441 |
| gal/min | Gallon/Minute (US) | 15850.372 |
| gal/h | Gallon/Hour (US) | 951022.35 |
Formula: ft³/s = m³/s × 35.31
Multiply any m³/s value by 35.31 to get ft³/s.
Reverse: m³/s = ft³/s × 0.02832
Common flow rate values — factor: 1 m³/s = 35.31 ft³/s
| m³/s (m³/s) | ft³/s (ft³/s) | Context |
|---|---|---|
| 1.000e-06 m³/s | 3.531e-05 ft³/s | Dripping faucet |
| 1.000e-05 m³/s | 0.0003531 ft³/s | Trickle |
| 0.0001 m³/s | 0.003531 ft³/s | Small stream |
| 0.001 m³/s | 0.03531 ft³/s | 1 L/s flow |
| 0.01 m³/s | 0.3531 ft³/s | 10 L/s pump |
| 0.083 m³/s | 2.931 ft³/s | 5 L/s heart |
| 0.1 m³/s | 3.531 ft³/s | 100 L/s |
| 1 m³/s | 35.31 ft³/s | Large pump |
| 10 m³/s | 353.1 ft³/s | Small river |
| 100 m³/s | 3531 ft³/s | Large river |
| 1000 m³/s | 3.531e+04 ft³/s | Major river |
| 1e+04 m³/s | 3.531e+05 ft³/s | Large river system |
| 1e+05 m³/s | 3.531e+06 ft³/s | Amazon fraction |
| 2.15e+05 m³/s | 7.593e+06 ft³/s | Amazon River |
| 1e+06 m³/s | 3.531e+07 ft³/s | Extreme |
1 m³/s = 35.31 ft³/s.
m³/s × 1000 = L/s × 60 = L/min. Use this chain for quick conversions.
Multiply result by 0.02832 to recover the original m³/s value.
Designs pumps, pipes, and water distribution systems with flow rates in m³/s, L/s, and GPM.
Specifies air handling units and ductwork in CFM (ft³/min) and m³/h for North American and European projects.
Monitors and controls treatment processes with flow rates in m³/h, L/s, and MGD.
Designs sprinkler systems with required flows in GPM and L/min per NFPA standards.
Measures river and groundwater flows in m³/s (m) and ft³/s (cfs) for flood modeling and water resource planning.
Configures ventilators and oxygen delivery systems with flow rates specified in L/min.
Cubic meters per second (m³/s) is the SI unit of volumetric flow rate, defined as the volume of fluid passing a point per second. It is used in hydrology, hydraulic engineering, and industrial process engineering where large-scale flows are measured.
River flows are commonly expressed in m³/s: the Amazon averages about 215,000 m³/s; the Ganges about 12,000 m³/s; a large municipal water main might carry 1–10 m³/s. The SI unit simplifies dimensional analysis with pressure (Pa) and energy (J).
Interesting fact: The Amazon River discharges more freshwater into the ocean than the next seven largest rivers combined. Its flow of ~215,000 m³/s equals about 215 billion liters per second — enough to fill an Olympic swimming pool in less than 1.25 milliseconds.
Cubic feet per second (ft³/s), also called cusecs, is the standard volumetric flow unit for rivers and streams in the United States. One ft³/s = 0.028317 m³/s ≈ 28.32 L/s.
US Geological Survey (USGS) stream gauges report flow in ft³/s (cfs). Irrigation water rights, hydropower licensing, and environmental flow requirements in the US are expressed in cfs. The Colorado River at Hoover Dam averages about 7,500 cfs.
Interesting fact: During Hurricane Harvey (2017), some Houston streams exceeded 400,000 cfs — more than 10 times the normal peak flow. The USGS maintains over 8,000 stream gauges across the US, all reporting in cfs.
Converting m³/s to ft³/s is essential across hydraulic engineering, HVAC, water treatment, fire protection, and medicine. SI units (m³/s, L/s) are standard in science; European engineering uses m³/h; US systems use GPM and CFM; medical applications use L/min.
Quick reference: 10 m³/s = 353.1 ft³/s. Reverse: 1 ft³/s = 0.02832 m³/s. Factor: 1 m³/s = 35.31 ft³/s.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.