Convert US gallons per second to UK gallons per second
Convert US gallons per second (gal/s) to UK gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = gal/s × 0.8326741846
About US gallons per second
The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 L/min.
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
| US gallons per second (gal/s) | UK gallons per second (gal/s) |
|---|---|
| 1 gal/s | 0.832674 gal/s |
| 2 gal/s | 1.66535 gal/s |
| 5 gal/s | 4.16337 gal/s |
| 10 gal/s | 8.32674 gal/s |
| 25 gal/s | 20.8169 gal/s |
| 50 gal/s | 41.6337 gal/s |
| 100 gal/s | 83.2674 gal/s |