Convert US quarts per minute to US gallons per minute
Convert US quarts per minute (qt/min) to US gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = qt/min × 0.25
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 US gallons per minute
The US gallon per minute (gpm) equals 3.785411784×10⁻³/60 ≈ 6.309×10⁻⁵ m³/s, the dominant volumetric flow unit in US plumbing, HVAC, and water-treatment industries. EPA showerhead standards are set at 2.5 gpm; residential water meters size at 3/4"-1" for 5-20 gpm; municipal water-distribution design uses hundreds to thousands of gpm. 1 gpm ≈ 6.309×10⁻⁵ m³/s = 3.785 L/min.
Quick Reference Table
| US quarts per minute (qt/min) | US gallons per minute (gpm) |
|---|---|
| 1 qt/min | 0.25 gpm |
| 2 qt/min | 0.5 gpm |
| 5 qt/min | 1.25 gpm |
| 10 qt/min | 2.5 gpm |
| 25 qt/min | 6.25 gpm |
| 50 qt/min | 12.5 gpm |
| 100 qt/min | 25 gpm |