Convert UK gallons per hour to Litres per second
Convert UK gallons per hour (gph) to Litres per second (L/s) instantly and accurately.
Conversion Formula
L/s = gph × 0.001262802778
About UK gallons per hour
The UK gallon per hour (gph) equals 4.54609×10⁻³/3600 ≈ 1.263×10⁻⁶ m³/s, found in pre-metric British burner-nozzle ratings, oil-consumption logs for diesel generators, and ship fuel-economy records. British aviation fuel consumption was once published in UK gal/h; legacy Lloyd's Register tanker descriptions used UK gal/h for cargo pump capacities. 1 UK gph ≈ 1.263×10⁻⁶ m³/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 hour (gph) | Litres per second (L/s) |
|---|---|
| 1 gph | 0.0012628 L/s |
| 2 gph | 0.00252561 L/s |
| 5 gph | 0.00631401 L/s |
| 10 gph | 0.012628 L/s |
| 25 gph | 0.0315701 L/s |
| 50 gph | 0.0631401 L/s |
| 100 gph | 0.12628 L/s |