Acre-foot per Day (acre-ft/day)
Acre-feet per day measure irrigation releases and reservoir inflows in the western US; one cusec flowing for a day is 1.983 acre-feet.
Symbol: acre-ft/day
Quantity: volumetric discharge of rivers, canals and water supply
SI relation: 1 acre-ft/day = 0.0142764101568 m³/s (exact)
Derivation: 1 acre-ft/day = 1233.48 m³ ÷ 86,400 s; 1 cusec for one day ≈ 1.98 acre-feet.
Exact: yes, by definition
Typical uses
- US irrigation district deliveries
- Reservoir inflow and outflow records
Convert acre-feet per day to other units
| Conversion | 1 acre-ft/day equals | Reverse |
|---|---|---|
| acre-foot per day to cumec | 0.01427641016 m³/s | cumec to acre-foot per day |
| acre-foot per day to cusec | 0.5041666667 ft³/s | cusec to acre-foot per day |
| acre-foot per day to MLD | 1.233481838 MLD | MLD to acre-foot per day |
| acre-foot per day to litre per second | 14.27641016 L/s | litre per second to acre-foot per day |
| acre-foot per day to cubic metre per day | 1233.481838 m³/day | cubic metre per day to acre-foot per day |
| acre-foot per day to MGD | 0.3258514286 MGD | MGD to acre-foot per day |
| acre-foot per day to MGD (imp) | 0.2713280726 MGD (imp) | MGD (imp) to acre-foot per day |
Open the Discharge Converter (Cumecs, Cusecs, MLD) to convert any value between all units.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "acre-foot".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Acre-foot per Day (acre-ft/day). Retrieved October 29, 2026, from https://scientificconverters.com/units/acre-foot-per-day/
IEEE
Scientific Converters, "Acre-foot per Day (acre-ft/day)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/acre-foot-per-day/