Convert UK gallons per minute to Litres per hour
Convert UK gallons per minute (gpm) to Litres per hour (L/h) instantly and accurately.
Conversion Formula
L/h = gpm × 272.7654
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 hour
The litre per hour (L/h) equals 10⁻³/3600 ≈ 2.778×10⁻⁷ m³/s, widely used in automotive fuel consumption (L/h), irrigation drip systems, and small pump specifications. A fuel cell vehicle running on hydrogen consumes ±2 L/h of liquid equivalent; a domestic water softener regeneration cycle uses 40-100 L/h of brine. 1 L/h ≈ 2.778×10⁻⁷ m³/s ≈ 0.2642 US gal/h.
Quick Reference Table
| UK gallons per minute (gpm) | Litres per hour (L/h) |
|---|---|
| 1 gpm | 272.765 L/h |
| 2 gpm | 545.531 L/h |
| 5 gpm | 1363.83 L/h |
| 10 gpm | 2727.65 L/h |
| 25 gpm | 6819.14 L/h |
| 50 gpm | 13638.3 L/h |
| 100 gpm | 27276.5 L/h |