Convert US quarts per minute to UK gallons per minute
Convert US quarts per minute (qt/min) to UK gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = qt/min × 0.2081685462
About US quarts per minute
The US quart per minute (qt/min) equals 3.785411784×10⁻³/4/60 ≈ 1.577×10⁻⁵ m³/s, encountered in US small-engine fuel system testing and food-processing pump calibration. Engine dynamometer fuel-flow instrumentation sometimes uses qt/min when testing small gasoline engines consuming 1-6 qt/min at full load. 1 US qt/min ≈ 1.577×10⁻⁵ m³/s.
About UK gallons per minute
The UK (imperial) gallon per minute (gpm) equals 4.54609×10⁻³/60 ≈ 7.577×10⁻⁵ m³/s, historically used in British plumbing design, pump curves, and water-treatment plant sizing. Pre-metric UK water-industry capacity tables and pump manufacturers quoted flows in UK gal/min; legacy British Standard BS EN pump curves often show both units. 1 UK gpm ≈ 7.577×10⁻⁵ m³/s ≈ 4.546 L/min.
Quick Reference Table
| US quarts per minute (qt/min) | UK gallons per minute (gpm) |
|---|---|
| 1 qt/min | 0.208169 gpm |
| 2 qt/min | 0.416337 gpm |
| 5 qt/min | 1.04084 gpm |
| 10 qt/min | 2.08169 gpm |
| 25 qt/min | 5.20421 gpm |
| 50 qt/min | 10.4084 gpm |
| 100 qt/min | 20.8169 gpm |