Convert flow rate units — m³/s, L/s, L/min, ft³/s, gallon/min and more.
| Unit | Name | Value |
|---|---|---|
| m³/s | Cubic Meter/Second | 0.028317 |
| m³/min | Cubic Meter/Minute | 1.698986 |
| m³/h | Cubic Meter/Hour | 101.85971 |
| L/s | Liter/Second | 28.317 |
| L/min | Liter/Minute | 1698.986 |
| ft³/min | Cubic Foot/Minute | 59.993644 |
| gal/min | Gallon/Minute (US) | 448.835 |
| gal/h | Gallon/Hour (US) | 26930.1 |
Formula: m³/h = ft³/s × 101.9
Multiply any ft³/s value by 101.9 to get m³/h.
Reverse: ft³/s = m³/h × 0.00981
Common flow rate values — factor: 1 ft³/s = 101.9 m³/h
| ft³/s (ft³/s) | m³/h (m³/h) | Context |
|---|---|---|
| 0.001 ft³/s | 0.1019 m³/h | Drip |
| 0.01 ft³/s | 1.019 m³/h | Small |
| 0.1 ft³/s | 10.19 m³/h | Small stream |
| 1 ft³/s | 101.9 m³/h | 1 cfs |
| 10 ft³/s | 1019 m³/h | Creek |
| 100 ft³/s | 1.019e+04 m³/h | Stream |
| 448 ft³/s | 4.567e+04 m³/h | 1 m³/s |
| 1000 ft³/s | 1.019e+05 m³/h | Small river |
| 7500 ft³/s | 7.646e+05 m³/h | Colorado at Hoover |
| 1e+04 ft³/s | 1.019e+06 m³/h | Large river |
| 1e+05 ft³/s | 1.019e+07 m³/h | Major river |
| 4e+05 ft³/s | 4.078e+07 m³/h | Harvey flood peak |
| 1e+06 ft³/s | 1.019e+08 m³/h | Extreme |
| 1e+07 ft³/s | 1.019e+09 m³/h | Very extreme |
| 1e+08 ft³/s | 1.019e+10 m³/h | Max |
1 ft³/s = 101.9 m³/h.
m³/s × 1000 = L/s × 60 = L/min. Use this chain for quick conversions.
Multiply result by 0.00981 to recover the original ft³/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 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.
Cubic meters per hour (m³/h) is the standard flow unit in European industrial and HVAC specifications, water treatment, and utility metering. It is the most practical scale for many industrial processes.
Water meters in Europe display consumption in m³, and flow rates in municipal water systems are specified in m³/h. A typical home consumes 1–5 m³/h peak demand; a large industrial facility might use 1,000–10,000 m³/h.
Interesting fact: Global freshwater withdrawal for agriculture, industry, and municipal use is approximately 4,600 km³/year — about 524,000 m³/h per billion people — making water flow measurement one of the most economically important metrological applications.
Converting ft³/s to m³/h 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 ft³/s = 1019 m³/h. Reverse: 1 m³/h = 0.00981 ft³/s. Factor: 1 ft³/s = 101.9 m³/h.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.