Convert Cubic feet per second to Acre-feet per hour
Convert Cubic feet per second (ft³/s) to Acre-feet per hour (ac-ft/h) instantly and accurately.
Conversion Formula
ac-ft/h = ft³/s × 0.0826446281
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 hour
The acre-foot per hour (ac-ft/h) equals 1233.48183754752/3600 ≈ 0.34263 m³/s, standard for sizing irrigation district delivery canals, reservoir outflow scheduling, and aquifer recharge basin calculations in the western US. The US Bureau of Reclamation uses ac-ft/h for canal operational planning; a 1 000-acre farm irrigating with 0.5 in/h rain-equivalent receives ≈41 ac-ft/h. 1 ac-ft/h ≈ 0.34263 m³/s.
Quick Reference Table
| Cubic feet per second (ft³/s) | Acre-feet per hour (ac-ft/h) |
|---|---|
| 1 ft³/s | 0.0826446 ac-ft/h |
| 2 ft³/s | 0.165289 ac-ft/h |
| 5 ft³/s | 0.413223 ac-ft/h |
| 10 ft³/s | 0.826446 ac-ft/h |
| 25 ft³/s | 2.06612 ac-ft/h |
| 50 ft³/s | 4.13223 ac-ft/h |
| 100 ft³/s | 8.26446 ac-ft/h |