Convert Cubic feet per second to Acre-feet per minute
Convert Cubic feet per second (ft³/s) to Acre-feet per minute (ac-ft/min) instantly and accurately.
Conversion Formula
ac-ft/min = ft³/s × 0.001377410468
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.
About Acre-feet per minute
The acre-foot per minute (ac-ft/min) equals 1233.48183754752/60 ≈ 20.558 m³/s, encountered in large irrigation canal capacity descriptions and reservoir emergency spillway sizing in the US West. A major canal gate releasing 1 ac-ft/min drains a 1-acre field 1 foot deep every minute - a substantial agricultural flow. 1 ac-ft/min ≈ 20.558 m³/s ≈ 726.0 ft³/s.
Quick Reference Table
| Cubic feet per second (ft³/s) | Acre-feet per minute (ac-ft/min) |
|---|---|
| 1 ft³/s | 0.00137741 ac-ft/min |
| 2 ft³/s | 0.00275482 ac-ft/min |
| 5 ft³/s | 0.00688705 ac-ft/min |
| 10 ft³/s | 0.0137741 ac-ft/min |
| 25 ft³/s | 0.0344353 ac-ft/min |
| 50 ft³/s | 0.0688705 ac-ft/min |
| 100 ft³/s | 0.137741 ac-ft/min |