Convert Million litres per day to UK gallons per second

Convert Million litres per day (ML/d) to UK gallons per second (gal/s) instantly and accurately.

Million litres per day (ML/d)
UK gallons per second (gal/s)

Conversion Formula

gal/s = ML/d × 2.545940374

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 UK gallons per second

The UK (imperial) gallon per second (gal/s) equals 4.54609×10⁻³ m³/s, about 20% larger than the US gallon per second. It appears in pre-metric British fire-fighting standards, large pump test certificates, and naval engineering calculations. A UK fire engine pump rated 1 000 UK gal/min delivers ≈16.67 UK gal/s. 1 UK gal/s = 4.54609×10⁻³ m³/s ≈ 1.201 US gal/s.

Quick Reference Table

Million litres per day (ML/d)UK gallons per second (gal/s)
1 ML/d2.54594 gal/s
2 ML/d5.09188 gal/s
5 ML/d12.7297 gal/s
10 ML/d25.4594 gal/s
25 ML/d63.6485 gal/s
50 ML/d127.297 gal/s
100 ML/d254.594 gal/s

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