Convert Million litres per day to US gallons per day
Convert Million litres per day (ML/d) to US gallons per day (gpd) instantly and accurately.
Conversion Formula
gpd = ML/d × 264172.0524
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.
About US gallons per day
The US gallon per day (gpd) equals 3.785411784×10⁻³/86400 ≈ 4.381×10⁻⁸ m³/s, the standard unit in US water-utility regulation and residential water-well pump sizing. The US national average residential water use is about 80-100 gpd per person; a reverse-osmosis membrane module is rated in gpd (50-100 gpd for domestic units). 1 US gpd ≈ 4.381×10⁻⁸ m³/s.
Quick Reference Table
| Million litres per day (ML/d) | US gallons per day (gpd) |
|---|---|
| 1 ML/d | 264172 gpd |
| 2 ML/d | 528344 gpd |
| 5 ML/d | 1320860 gpd |
| 10 ML/d | 2641720 gpd |
| 25 ML/d | 6604300 gpd |
| 50 ML/d | 13208600 gpd |
| 100 ML/d | 26417200 gpd |