Convert Millilitres per hour to US gallons per minute
Convert Millilitres per hour (mL/h) to US gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = mL/h × 4.402867539e-6
About Millilitres per hour
The millilitre per hour (mL/h) equals 10⁻⁶/3600 ≈ 2.778×10⁻¹⁰ m³/s, standard for intravenous infusion pumps in clinical medicine and for slow-release laboratory syringe pumps. A 1 L IV bag running over 8 hours is set to 125 mL/h; subcutaneous insulin pumps deliver 1-100 mL/h of dilute insulin. 1 mL/h ≈ 2.778×10⁻¹⁰ 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
| Millilitres per hour (mL/h) | US gallons per minute (gpm) |
|---|---|
| 1 mL/h | 4.403 × 10-6 gpm |
| 2 mL/h | 8.806 × 10-6 gpm |
| 5 mL/h | 2.201 × 10-5 gpm |
| 10 mL/h | 4.403 × 10-5 gpm |
| 25 mL/h | 0.000110072 gpm |
| 50 mL/h | 0.000220143 gpm |
| 100 mL/h | 0.000440287 gpm |