Convert Cubic feet per second to Cubic metres per second
Convert Cubic feet per second (ft³/s) to Cubic metres per second (m³/s) instantly and accurately.
Conversion Formula
m³/s = ft³/s × 0.02831684659
About Cubic feet per second
The cubic foot per second (ft³/s or cfs) equals 0.028316846592 m³/s, the primary unit for measuring river discharge and open-channel flow in the United States. The US Geological Survey publishes all streamflow data in cfs; irrigation water rights, flood-control gates, and dam spillway capacities are specified in cfs. The Colorado River at full natural flow is ≈22 000 cfs. 1 cfs = 0.028316846592 m³/s ≈ 28.317 L/s ≈ 448.8 US gpm.
About Cubic metres per second
The cubic metre per second (m³/s) is the SI coherent unit of volumetric flow rate. It is used for large river discharges, turbine inlet flows, and major pipeline capacities. The Amazon River at its mouth averages ≈200 000 m³/s; a large hydroelectric turbine passes 400-800 m³/s; a major municipal water-main carries 5-20 m³/s. 1 m³/s = 1 000 L/s ≈ 15 850 US gal/min = 35.315 ft³/s.
Quick Reference Table
| Cubic feet per second (ft³/s) | Cubic metres per second (m³/s) |
|---|---|
| 1 ft³/s | 0.0283168 m³/s |
| 2 ft³/s | 0.0566337 m³/s |
| 5 ft³/s | 0.141584 m³/s |
| 10 ft³/s | 0.283168 m³/s |
| 25 ft³/s | 0.707921 m³/s |
| 50 ft³/s | 1.41584 m³/s |
| 100 ft³/s | 2.83168 m³/s |