Convert US gallons per hour to UK gallons per second
Convert US gallons per hour (gph) to UK gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = gph × 0.0002312983846
About US gallons per hour
The US gallon per hour (gph) equals 3.785411784×10⁻³/3600 ≈ 1.051×10⁻⁶ m³/s, common in oil-burner nozzle ratings, water-softener regeneration, and RV/marine-plumbing specifications. Residential oil-burner nozzles are rated in gph (e.g., 0.75 gph, 1.00 gph); a small boat bilge pump might handle 200-500 gph. 1 US gph ≈ 1.052×10⁻⁶ m³/s ≈ 3.785 L/h.
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
| US gallons per hour (gph) | UK gallons per second (gal/s) |
|---|---|
| 1 gph | 0.000231298 gal/s |
| 2 gph | 0.000462597 gal/s |
| 5 gph | 0.00115649 gal/s |
| 10 gph | 0.00231298 gal/s |
| 25 gph | 0.00578246 gal/s |
| 50 gph | 0.0115649 gal/s |
| 100 gph | 0.0231298 gal/s |