Convert UK gallons per minute to US quarts per minute

Convert UK gallons per minute (gpm) to US quarts per minute (qt/min) instantly and accurately.

UK gallons per minute (gpm)
US quarts per minute (qt/min)

Conversion Formula

qt/min = gpm × 4.803799702

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.

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.

Quick Reference Table

UK gallons per minute (gpm)US quarts per minute (qt/min)
1 gpm4.8038 qt/min
2 gpm9.6076 qt/min
5 gpm24.019 qt/min
10 gpm48.038 qt/min
25 gpm120.095 qt/min
50 gpm240.19 qt/min
100 gpm480.38 qt/min

→ Full Flow Rate (Volumetric) Converter