Convert Acre-feet per day to UK gallons per second
Convert Acre-feet per day (ac-ft/d) to UK gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = ac-ft/d × 3.140371211
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.
About UK gallons per second
The UK (imperial) gallon per second (gal/s) equals 4.54609×10⁻³ m³/s, about 20% larger than the US gallon per second. It appears in pre-metric British fire-fighting standards, large pump test certificates, and naval engineering calculations. A UK fire engine pump rated 1 000 UK gal/min delivers ≈16.67 UK gal/s. 1 UK gal/s = 4.54609×10⁻³ m³/s ≈ 1.201 US gal/s.
Quick Reference Table
| Acre-feet per day (ac-ft/d) | UK gallons per second (gal/s) |
|---|---|
| 1 ac-ft/d | 3.14037 gal/s |
| 2 ac-ft/d | 6.28074 gal/s |
| 5 ac-ft/d | 15.7019 gal/s |
| 10 ac-ft/d | 31.4037 gal/s |
| 25 ac-ft/d | 78.5093 gal/s |
| 50 ac-ft/d | 157.019 gal/s |
| 100 ac-ft/d | 314.037 gal/s |