Convert Cubic feet per minute to Acre-feet per hour
Convert Cubic feet per minute (ft³/min) to Acre-feet per hour (ac-ft/h) instantly and accurately.
Conversion Formula
ac-ft/h = ft³/min × 0.001377410468
About Cubic feet per minute
The cubic foot per minute (cfm or ft³/min) equals 0.028316846592/60 ≈ 4.719×10⁻⁴ m³/s, the dominant unit for ventilation, HVAC airflow, and compressed-air system design in the US. ASHRAE ventilation standards, building-code fresh-air requirements, and dust-collector capacity are all stated in cfm. A residential HVAC system moves 800-1 200 cfm; an industrial dust collector handles 2 000-20 000 cfm. 1 cfm ≈ 0.4719 L/s.
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 minute (ft³/min) | Acre-feet per hour (ac-ft/h) |
|---|---|
| 1 ft³/min | 0.00137741 ac-ft/h |
| 2 ft³/min | 0.00275482 ac-ft/h |
| 5 ft³/min | 0.00688705 ac-ft/h |
| 10 ft³/min | 0.0137741 ac-ft/h |
| 25 ft³/min | 0.0344353 ac-ft/h |
| 50 ft³/min | 0.0688705 ac-ft/h |
| 100 ft³/min | 0.137741 ac-ft/h |