Convert Acre-feet per second to UK gallons per minute
Convert Acre-feet per second (ac-ft/s) to UK gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = ac-ft/s × 16279684.36
About Acre-feet per second
The acre-foot per second (ac-ft/s) equals 1233.48183754752 m³/s, an enormous unit representing the flow that would fill a football-field-sized area to 1 ft depth every second. It appears in descriptions of exceptionally large dam-break flood waves and major river-system extreme events. The 1976 Teton Dam collapse peak outflow was estimated at ≈65 000 ft³/s ≈ 1.49 ac-ft/s. 1 ac-ft/s = 1 233.48 m³/s.
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.
Quick Reference Table
| Acre-feet per second (ac-ft/s) | UK gallons per minute (gpm) |
|---|---|
| 1 ac-ft/s | 16279700 gpm |
| 2 ac-ft/s | 32559400 gpm |
| 5 ac-ft/s | 81398400 gpm |
| 10 ac-ft/s | 162797000 gpm |
| 25 ac-ft/s | 406992000 gpm |
| 50 ac-ft/s | 813984000 gpm |
| 100 ac-ft/s | 1.628 × 109 gpm |