Convert UK gallons per day to Acre-feet per day
Convert UK gallons per day (gpd) to Acre-feet per day (ac-ft/d) instantly and accurately.
Conversion Formula
ac-ft/d = gpd × 3.685575143e-6
About UK gallons per day
The UK gallon per day (gpd) equals 4.54609×10⁻³/86400 ≈ 5.261×10⁻⁸ m³/s, used in British per-capita water-consumption statistics and pre-metric water-authority regulation. Historic UK Water Acts set minimum supply standards in UK gal/d per household; older UK borehole pump test reports quote sustained yield in UK gal/d. 1 UK gpd ≈ 5.261×10⁻⁸ m³/s.
About Acre-feet per day
The acre-foot per day (ac-ft/d) equals 1233.48183754752/86400 ≈ 0.014278 m³/s, the practical unit for daily water-delivery scheduling in western US irrigation districts and river-compact administration. Water rights in the Colorado River system are specified in acre-feet per year; daily delivery schedules convert to ac-ft/d. A moderate-size irrigation lateral delivers 5-50 ac-ft/d. 1 ac-ft/d ≈ 0.014278 m³/s ≈ 504.2 US gal/min.
Quick Reference Table
| UK gallons per day (gpd) | Acre-feet per day (ac-ft/d) |
|---|---|
| 1 gpd | 3.686 × 10-6 ac-ft/d |
| 2 gpd | 7.371 × 10-6 ac-ft/d |
| 5 gpd | 1.843 × 10-5 ac-ft/d |
| 10 gpd | 3.686 × 10-5 ac-ft/d |
| 25 gpd | 9.214 × 10-5 ac-ft/d |
| 50 gpd | 0.000184279 ac-ft/d |
| 100 gpd | 0.000368558 ac-ft/d |