Convert Litres per second to UK gallons per minute
Convert Litres per second (L/s) to UK gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = L/s × 13.1981549
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 minute
The UK (imperial) gallon per minute (gpm) equals 4.54609×10⁻³/60 ≈ 7.577×10⁻⁵ m³/s, historically used in British plumbing design, pump curves, and water-treatment plant sizing. Pre-metric UK water-industry capacity tables and pump manufacturers quoted flows in UK gal/min; legacy British Standard BS EN pump curves often show both units. 1 UK gpm ≈ 7.577×10⁻⁵ m³/s ≈ 4.546 L/min.
Quick Reference Table
| Litres per second (L/s) | UK gallons per minute (gpm) |
|---|---|
| 1 L/s | 13.1982 gpm |
| 2 L/s | 26.3963 gpm |
| 5 L/s | 65.9908 gpm |
| 10 L/s | 131.982 gpm |
| 25 L/s | 329.954 gpm |
| 50 L/s | 659.908 gpm |
| 100 L/s | 1319.82 gpm |