Convert UK gallons per minute to Litres per minute
Convert UK gallons per minute (gpm) to Litres per minute (L/min) instantly and accurately.
Conversion Formula
L/min = gpm × 4.54609
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 Litres per minute
The litre per minute (L/min) equals 10⁻³/60 ≈ 1.667×10⁻⁵ m³/s, one of the most common flow units in consumer and light-industrial applications. Household washing machines use 10-15 L/min; oxygen concentrators deliver 1-10 L/min to patients; a standard garden sprinkler head discharges 15-30 L/min. 1 L/min ≈ 1.667×10⁻⁵ m³/s ≈ 0.2642 US gal/min.
Quick Reference Table
| UK gallons per minute (gpm) | Litres per minute (L/min) |
|---|---|
| 1 gpm | 4.54609 L/min |
| 2 gpm | 9.09218 L/min |
| 5 gpm | 22.7305 L/min |
| 10 gpm | 45.4609 L/min |
| 25 gpm | 113.652 L/min |
| 50 gpm | 227.305 L/min |
| 100 gpm | 454.609 L/min |