Convert Cubic feet per second to Litres per second
Convert Cubic feet per second (ft³/s) to Litres per second (L/s) instantly and accurately.
Conversion Formula
L/s = ft³/s × 28.31684659
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 Litres per second
The litre per second (L/s) equals 10⁻³ m³/s, the standard unit for municipal water-supply engineering, fire-fighting flows, and HVAC system air handling. A fire hydrant delivers 15-30 L/s; a household mains water connection is typically 0.1-0.5 L/s; a large building HVAC chilled-water loop circulates 50-200 L/s. 1 L/s = 10⁻³ m³/s = 3.6 m³/h ≈ 15.85 US gal/min.
Quick Reference Table
| Cubic feet per second (ft³/s) | Litres per second (L/s) |
|---|---|
| 1 ft³/s | 28.3168 L/s |
| 2 ft³/s | 56.6337 L/s |
| 5 ft³/s | 141.584 L/s |
| 10 ft³/s | 283.168 L/s |
| 25 ft³/s | 707.921 L/s |
| 50 ft³/s | 1415.84 L/s |
| 100 ft³/s | 2831.68 L/s |