Convert US gallons per minute to Million litres per day
Convert US gallons per minute (gpm) to Million litres per day (ML/d) instantly and accurately.
Conversion Formula
ML/d = gpm × 0.005450992969
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.
About Million litres per day
The million litres per day (ML/d or MLD) equals 1000/86400 ≈ 0.011574 m³/s, the standard capacity unit for water-treatment plants, sewage-treatment works, and desalination facilities in the UK, India, and much of the Commonwealth. A small town water-treatment works processes 5-20 ML/d; the Beckton Sewage Treatment Works in London treats ≈700 ML/d. 1 ML/d ≈ 0.011574 m³/s = 1 000 m³/d.
Quick Reference Table
| US gallons per minute (gpm) | Million litres per day (ML/d) |
|---|---|
| 1 gpm | 0.00545099 ML/d |
| 2 gpm | 0.010902 ML/d |
| 5 gpm | 0.027255 ML/d |
| 10 gpm | 0.0545099 ML/d |
| 25 gpm | 0.136275 ML/d |
| 50 gpm | 0.27255 ML/d |
| 100 gpm | 0.545099 ML/d |