Convert UK gallons per minute to Millilitres per second

Convert UK gallons per minute (gpm) to Millilitres per second (mL/s) instantly and accurately.

UK gallons per minute (gpm)
Millilitres per second (mL/s)

Conversion Formula

mL/s = gpm × 75.76816667

About UK gallons per minute

The UK (imperial) gallon per minute (gpm) equals 4.54609×10⁻³/60 ≈ 7.577×10⁻⁵ m³/s, historically used in British plumbing design, pump curves, and water-treatment plant sizing. Pre-metric UK water-industry capacity tables and pump manufacturers quoted flows in UK gal/min; legacy British Standard BS EN pump curves often show both units. 1 UK gpm ≈ 7.577×10⁻⁵ m³/s ≈ 4.546 L/min.

About Millilitres per second

The millilitre per second (mL/s) equals 10⁻⁶ m³/s, common in laboratory syringe pumps, HPLC systems, and medical infusion devices. A standard IV drip running at 1 mL/s would deliver 3.6 L/h - a rapid infusion rate used in resuscitation; analytical HPLC columns run 0.5-5 mL/s. 1 mL/s = 10⁻⁶ m³/s = 60 mL/min = 3.6 L/h.

Quick Reference Table

UK gallons per minute (gpm)Millilitres per second (mL/s)
1 gpm75.7682 mL/s
2 gpm151.536 mL/s
5 gpm378.841 mL/s
10 gpm757.682 mL/s
25 gpm1894.2 mL/s
50 gpm3788.41 mL/s
100 gpm7576.82 mL/s

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