Convert Acre-feet per day to US gallons per second
Convert Acre-feet per day (ac-ft/d) to US gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = ac-ft/d × 3.771428571
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 US gallons per second
The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 L/min.
Quick Reference Table
| Acre-feet per day (ac-ft/d) | US gallons per second (gal/s) |
|---|---|
| 1 ac-ft/d | 3.77143 gal/s |
| 2 ac-ft/d | 7.54286 gal/s |
| 5 ac-ft/d | 18.8571 gal/s |
| 10 ac-ft/d | 37.7143 gal/s |
| 25 ac-ft/d | 94.2857 gal/s |
| 50 ac-ft/d | 188.571 gal/s |
| 100 ac-ft/d | 377.143 gal/s |