Convert US quarts per hour to UK gallons per hour
Convert US quarts per hour (qt/h) to UK gallons per hour (gph) instantly and accurately.
Conversion Formula
gph = qt/h × 0.2081685462
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.
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.
Quick Reference Table
| US quarts per hour (qt/h) | UK gallons per hour (gph) |
|---|---|
| 1 qt/h | 0.208169 gph |
| 2 qt/h | 0.416337 gph |
| 5 qt/h | 1.04084 gph |
| 10 qt/h | 2.08169 gph |
| 25 qt/h | 5.20421 gph |
| 50 qt/h | 10.4084 gph |
| 100 qt/h | 20.8169 gph |