Convert Litres per second to UK gallons per second
Convert Litres per second (L/s) to UK gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = L/s × 0.2199692483
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.
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
| Litres per second (L/s) | UK gallons per second (gal/s) |
|---|---|
| 1 L/s | 0.219969 gal/s |
| 2 L/s | 0.439938 gal/s |
| 5 L/s | 1.09985 gal/s |
| 10 L/s | 2.19969 gal/s |
| 25 L/s | 5.49923 gal/s |
| 50 L/s | 10.9985 gal/s |
| 100 L/s | 21.9969 gal/s |