Convert UK gallons per minute to Kilolitres per second

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

UK gallons per minute (gpm)
Kilolitres per second (kL/s)

Conversion Formula

kL/s = gpm × 7.576816667e-5

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 Kilolitres per second

The kilolitre per second (kL/s) equals 1 m³/s, so 1 kL/s is identical to 1 m³/s. The term kilolitre is favoured in Australian and South African engineering over the equivalent cubic metre per second. Municipal water-main flow and stormwater-channel capacity are sometimes expressed in kL/s in these countries. 1 kL/s = 1 m³/s = 1 000 L/s ≈ 15 850 US gal/min.

Quick Reference Table

UK gallons per minute (gpm)Kilolitres per second (kL/s)
1 gpm7.577 × 10-5 kL/s
2 gpm0.000151536 kL/s
5 gpm0.000378841 kL/s
10 gpm0.000757682 kL/s
25 gpm0.0018942 kL/s
50 gpm0.00378841 kL/s
100 gpm0.00757682 kL/s

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