Convert UK gallons per minute to Acre-feet per hour
Convert UK gallons per minute (gpm) to Acre-feet per hour (ac-ft/h) instantly and accurately.
Conversion Formula
ac-ft/h = gpm × 0.0002211345086
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 Acre-feet per hour
The acre-foot per hour (ac-ft/h) equals 1233.48183754752/3600 ≈ 0.34263 m³/s, standard for sizing irrigation district delivery canals, reservoir outflow scheduling, and aquifer recharge basin calculations in the western US. The US Bureau of Reclamation uses ac-ft/h for canal operational planning; a 1 000-acre farm irrigating with 0.5 in/h rain-equivalent receives ≈41 ac-ft/h. 1 ac-ft/h ≈ 0.34263 m³/s.
Quick Reference Table
| UK gallons per minute (gpm) | Acre-feet per hour (ac-ft/h) |
|---|---|
| 1 gpm | 0.000221135 ac-ft/h |
| 2 gpm | 0.000442269 ac-ft/h |
| 5 gpm | 0.00110567 ac-ft/h |
| 10 gpm | 0.00221135 ac-ft/h |
| 25 gpm | 0.00552836 ac-ft/h |
| 50 gpm | 0.0110567 ac-ft/h |
| 100 gpm | 0.0221135 ac-ft/h |