Convert US gallons per second to US gallons per hour
Convert US gallons per second (gal/s) to US gallons per hour (gph) instantly and accurately.
Conversion Formula
gph = gal/s × 3600
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.
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.
Quick Reference Table
| US gallons per second (gal/s) | US gallons per hour (gph) |
|---|---|
| 1 gal/s | 3600 gph |
| 2 gal/s | 7200 gph |
| 5 gal/s | 18000 gph |
| 10 gal/s | 36000 gph |
| 25 gal/s | 90000 gph |
| 50 gal/s | 180000 gph |
| 100 gal/s | 360000 gph |