Convert UK gallons per second to Litres per second
Convert UK gallons per second (gal/s) to Litres per second (L/s) instantly and accurately.
Conversion Formula
L/s = gal/s × 4.54609
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.
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
| UK gallons per second (gal/s) | Litres per second (L/s) |
|---|---|
| 1 gal/s | 4.54609 L/s |
| 2 gal/s | 9.09218 L/s |
| 5 gal/s | 22.7304 L/s |
| 10 gal/s | 45.4609 L/s |
| 25 gal/s | 113.652 L/s |
| 50 gal/s | 227.304 L/s |
| 100 gal/s | 454.609 L/s |