Convert US gallons per hour to US quarts per hour
Convert US gallons per hour (gph) to US quarts per hour (qt/h) instantly and accurately.
Conversion Formula
qt/h = gph × 4
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 US quarts per hour
The US quart per hour (qt/h) equals 3.785411784×10⁻³/4/3600 ≈ 2.629×10⁻⁷ m³/s, used in US agricultural irrigation drippers (emitters rated in qt/h) and hobby aquaculture systems. A drip emitter rated 1 qt/h ≈ 0.946 L/h is a common size for garden irrigation in the US market. 1 US qt/h ≈ 2.629×10⁻⁷ m³/s.
Quick Reference Table
| US gallons per hour (gph) | US quarts per hour (qt/h) |
|---|---|
| 1 gph | 4 qt/h |
| 2 gph | 8 qt/h |
| 5 gph | 20 qt/h |
| 10 gph | 40 qt/h |
| 25 gph | 100 qt/h |
| 50 gph | 200 qt/h |
| 100 gph | 400 qt/h |