Convert Cubic feet per second to UK gallons per second
Convert Cubic feet per second (ft³/s) to UK gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = ft³/s × 6.228835459
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 UK gallons per second
The UK (imperial) gallon per second (gal/s) equals 4.54609×10⁻³ m³/s, about 20% larger than the US gallon per second. It appears in pre-metric British fire-fighting standards, large pump test certificates, and naval engineering calculations. A UK fire engine pump rated 1 000 UK gal/min delivers ≈16.67 UK gal/s. 1 UK gal/s = 4.54609×10⁻³ m³/s ≈ 1.201 US gal/s.
Quick Reference Table
| Cubic feet per second (ft³/s) | UK gallons per second (gal/s) |
|---|---|
| 1 ft³/s | 6.22884 gal/s |
| 2 ft³/s | 12.4577 gal/s |
| 5 ft³/s | 31.1442 gal/s |
| 10 ft³/s | 62.2884 gal/s |
| 25 ft³/s | 155.721 gal/s |
| 50 ft³/s | 311.442 gal/s |
| 100 ft³/s | 622.884 gal/s |