Convert US gallons per hour to Megalitres per day
Convert US gallons per hour (gph) to Megalitres per day (ML/d) instantly and accurately.
Conversion Formula
ML/d = gph × 9.084988282e-5
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 Megalitres per day
The megalitre per day (ML/d) equals 1000/86400 ≈ 0.011574 m³/s, numerically identical to million litres per day. It is the preferred notation in Australian water-authority reporting, environmental flow assessments, and reservoir storage accounting. Murray-Darling Basin environmental flows are specified in ML/d; urban water utilities publish reservoir capacity and daily draw in ML/d. 1 ML/d ≈ 0.011574 m³/s = 1 000 m³/d.
Quick Reference Table
| US gallons per hour (gph) | Megalitres per day (ML/d) |
|---|---|
| 1 gph | 9.085 × 10-5 ML/d |
| 2 gph | 0.0001817 ML/d |
| 5 gph | 0.000454249 ML/d |
| 10 gph | 0.000908499 ML/d |
| 25 gph | 0.00227125 ML/d |
| 50 gph | 0.00454249 ML/d |
| 100 gph | 0.00908499 ML/d |