Convert Acre-feet per day to Cubic feet per second
Convert Acre-feet per day (ac-ft/d) to Cubic feet per second (ft³/s) instantly and accurately.
Conversion Formula
ft³/s = ac-ft/d × 0.5041666667
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 Cubic feet per second
The cubic foot per second (ft³/s or cfs) equals 0.028316846592 m³/s, the primary unit for measuring river discharge and open-channel flow in the United States. The US Geological Survey publishes all streamflow data in cfs; irrigation water rights, flood-control gates, and dam spillway capacities are specified in cfs. The Colorado River at full natural flow is ≈22 000 cfs. 1 cfs = 0.028316846592 m³/s ≈ 28.317 L/s ≈ 448.8 US gpm.
Quick Reference Table
| Acre-feet per day (ac-ft/d) | Cubic feet per second (ft³/s) |
|---|---|
| 1 ac-ft/d | 0.504167 ft³/s |
| 2 ac-ft/d | 1.00833 ft³/s |
| 5 ac-ft/d | 2.52083 ft³/s |
| 10 ac-ft/d | 5.04167 ft³/s |
| 25 ac-ft/d | 12.6042 ft³/s |
| 50 ac-ft/d | 25.2083 ft³/s |
| 100 ac-ft/d | 50.4167 ft³/s |