Convert US quarts per minute to Litres per hour
Convert US quarts per minute (qt/min) to Litres per hour (L/h) instantly and accurately.
Conversion Formula
L/h = qt/min × 56.78117676
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 Litres per hour
The litre per hour (L/h) equals 10⁻³/3600 ≈ 2.778×10⁻⁷ m³/s, widely used in automotive fuel consumption (L/h), irrigation drip systems, and small pump specifications. A fuel cell vehicle running on hydrogen consumes ±2 L/h of liquid equivalent; a domestic water softener regeneration cycle uses 40-100 L/h of brine. 1 L/h ≈ 2.778×10⁻⁷ m³/s ≈ 0.2642 US gal/h.
Quick Reference Table
| US quarts per minute (qt/min) | Litres per hour (L/h) |
|---|---|
| 1 qt/min | 56.7812 L/h |
| 2 qt/min | 113.562 L/h |
| 5 qt/min | 283.906 L/h |
| 10 qt/min | 567.812 L/h |
| 25 qt/min | 1419.53 L/h |
| 50 qt/min | 2839.06 L/h |
| 100 qt/min | 5678.12 L/h |