Convert US quarts per hour to Millilitres per minute
Convert US quarts per hour (qt/h) to Millilitres per minute (mL/min) instantly and accurately.
Conversion Formula
mL/min = qt/h × 15.7725491
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 Millilitres per minute
The millilitre per minute (mL/min) equals 10⁻⁶/60 ≈ 1.667×10⁻⁸ m³/s, the standard flow rate unit for HPLC and preparative chromatography. A reverse-phase HPLC column (4.6 mm i.d.) operates at 1-2 mL/min; a cardiac output catheter measures 4 000-8 000 mL/min (= L/min). 1 mL/min ≈ 1.667×10⁻⁸ m³/s = 60 mL/h.
Quick Reference Table
| US quarts per hour (qt/h) | Millilitres per minute (mL/min) |
|---|---|
| 1 qt/h | 15.7725 mL/min |
| 2 qt/h | 31.5451 mL/min |
| 5 qt/h | 78.8627 mL/min |
| 10 qt/h | 157.725 mL/min |
| 25 qt/h | 394.314 mL/min |
| 50 qt/h | 788.627 mL/min |
| 100 qt/h | 1577.25 mL/min |