Convert Acre-feet per minute to Cubic metres per second
Convert Acre-feet per minute (ac-ft/min) to Cubic metres per second (m³/s) instantly and accurately.
Conversion Formula
m³/s = ac-ft/min × 20.55803063
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.
About Cubic metres per second
The cubic metre per second (m³/s) is the SI coherent unit of volumetric flow rate. It is used for large river discharges, turbine inlet flows, and major pipeline capacities. The Amazon River at its mouth averages ≈200 000 m³/s; a large hydroelectric turbine passes 400-800 m³/s; a major municipal water-main carries 5-20 m³/s. 1 m³/s = 1 000 L/s ≈ 15 850 US gal/min = 35.315 ft³/s.
Quick Reference Table
| Acre-feet per minute (ac-ft/min) | Cubic metres per second (m³/s) |
|---|---|
| 1 ac-ft/min | 20.558 m³/s |
| 2 ac-ft/min | 41.1161 m³/s |
| 5 ac-ft/min | 102.79 m³/s |
| 10 ac-ft/min | 205.58 m³/s |
| 25 ac-ft/min | 513.951 m³/s |
| 50 ac-ft/min | 1027.9 m³/s |
| 100 ac-ft/min | 2055.8 m³/s |