Convert UK gallons per hour to US gallons per second
Convert UK gallons per hour (gph) to US gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = gph × 0.0003335972015
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 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.
Quick Reference Table
| UK gallons per hour (gph) | US gallons per second (gal/s) |
|---|---|
| 1 gph | 0.000333597 gal/s |
| 2 gph | 0.000667194 gal/s |
| 5 gph | 0.00166799 gal/s |
| 10 gph | 0.00333597 gal/s |
| 25 gph | 0.00833993 gal/s |
| 50 gph | 0.0166799 gal/s |
| 100 gph | 0.0333597 gal/s |