Convert Cubic metres per second to Acre-feet per day
Convert Cubic metres per second (m³/s) to Acre-feet per day (ac-ft/d) instantly and accurately.
Conversion Formula
ac-ft/d = m³/s × 70.04561994
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.
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.
Quick Reference Table
| Cubic metres per second (m³/s) | Acre-feet per day (ac-ft/d) |
|---|---|
| 1 m³/s | 70.0456 ac-ft/d |
| 2 m³/s | 140.091 ac-ft/d |
| 5 m³/s | 350.228 ac-ft/d |
| 10 m³/s | 700.456 ac-ft/d |
| 25 m³/s | 1751.14 ac-ft/d |
| 50 m³/s | 3502.28 ac-ft/d |
| 100 m³/s | 7004.56 ac-ft/d |