Convert US gallons per second to Million litres per day
Convert US gallons per second (gal/s) to Million litres per day (ML/d) instantly and accurately.
Conversion Formula
ML/d = gal/s × 0.3270595781
About US gallons per second
The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 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 second (gal/s) | Million litres per day (ML/d) |
|---|---|
| 1 gal/s | 0.32706 ML/d |
| 2 gal/s | 0.654119 ML/d |
| 5 gal/s | 1.6353 ML/d |
| 10 gal/s | 3.2706 ML/d |
| 25 gal/s | 8.17649 ML/d |
| 50 gal/s | 16.353 ML/d |
| 100 gal/s | 32.706 ML/d |