Convert US gallons per hour to Millilitres per hour
Convert US gallons per hour (gph) to Millilitres per hour (mL/h) instantly and accurately.
Conversion Formula
mL/h = gph × 3785.411784
About US gallons per hour
The US gallon per hour (gph) equals 3.785411784×10⁻³/3600 ≈ 1.051×10⁻⁶ m³/s, common in oil-burner nozzle ratings, water-softener regeneration, and RV/marine-plumbing specifications. Residential oil-burner nozzles are rated in gph (e.g., 0.75 gph, 1.00 gph); a small boat bilge pump might handle 200-500 gph. 1 US gph ≈ 1.052×10⁻⁶ m³/s ≈ 3.785 L/h.
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.
Quick Reference Table
| US gallons per hour (gph) | Millilitres per hour (mL/h) |
|---|---|
| 1 gph | 3785.41 mL/h |
| 2 gph | 7570.82 mL/h |
| 5 gph | 18927.1 mL/h |
| 10 gph | 37854.1 mL/h |
| 25 gph | 94635.3 mL/h |
| 50 gph | 189271 mL/h |
| 100 gph | 378541 mL/h |