Convert Cusecs to Acre-feet per Day (ft3/s to acre-ft/day)
1 cusec (ft³/s) = 1.983471074 acre-feet per day (acre-ft/day). 1 acre-ft/day = 0.5041666667 ft³/s. Example: 15 ft³/s = 15 × 1.983471074 = 29.75206612 acre-ft/day.
Also searched as cusecs to acre-ft/day, cusecs in acre-ft/day, cusecs into acre-feet per day, ft3/s to acre-ft/day, ft3/s in acre-feet per day, ft3/s into acre-foot per day, cusec to acre-foot per day, ft3/s to acre-feet per day converter and how many acre-feet per day in a cusec.
1 ft³/s = 1.983471074 acre-ft/day
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cusec to acre-foot per day converter to paste a column from Excel.
How to Convert Cusec to Acre-foot per Day
- 1 ft³/s = 1.983471074 acre-ft/day
- 1 acre-ft/day = 0.5041666667 ft³/s
- Example: convert 15 ft³/s to acre-ft/day: 15 ft³/s = 15 × 1.983471074 acre-ft/day = 29.75206612 acre-ft/day
Formula
acre-ft/day = ft³/s × 1.98347107438
Derivation from SI units:
- 1 cusec = 1 ft³/s = 0.028316846592 m³/s.
- 1 acre-ft/day = 1233.48 m³ ÷ 86,400 s; 1 cusec for one day ≈ 1.98 acre-feet.
- 1 ft³/s = 0.028316846592 m³/s ÷ 0.0142764101568 m³/s per acre-ft/day = 1.98347107438 acre-ft/day
Both units are defined exactly, so the factor is exact. Cusec definition: cusec; Acre-foot per Day definition: acre-foot per day.
Worked examples
- A reading of 100 ft³/s converts to 198.3471074 acre-ft/day.
100 ft³/s × 1.983471074 = 198.3471074 acre-ft/day - A value of 5000 ft³/s is 9917.355372 acre-ft/day.
5000 ft³/s × 1.983471074 = 9917.355372 acre-ft/day
Cusec to Acre-foot per Day conversion table
| Cusecs (ft³/s) | Acre-feet per Day (acre-ft/day) |
|---|---|
| 1 ft³/s | 1.983471074 acre-ft/day |
| 10 ft³/s | 19.83471074 acre-ft/day |
| 35.3 ft³/s | 70.01652893 acre-ft/day |
| 100 ft³/s | 198.3471074 acre-ft/day |
| 500 ft³/s | 991.7355372 acre-ft/day |
| 1000 ft³/s | 1983.471074 acre-ft/day |
| 5000 ft³/s | 9917.355372 acre-ft/day |
| 10000 ft³/s | 19834.71074 acre-ft/day |
| 50000 ft³/s | 99173.55372 acre-ft/day |
| 100000 ft³/s | 198347.1074 acre-ft/day |
Where it's used
Cusecs are used for canal and dam releases in India (e.g. Cauvery releases), while acre-feet per day appear in US irrigation district deliveries. Both measure volumetric discharge of rivers, canals and water supply, so the conversion is a fixed factor.
Cusec to other water discharge units
| Conversion | 1 ft³/s equals |
|---|---|
| cusec to acre-foot per day | 1.983471074 acre-ft/day |
| cusec to cumec | 0.02831684659 m³/s |
| cusec to MLD | 2.446575546 MLD |
| cusec to litre per second | 28.31684659 L/s |
| cusec to cubic metre per day | 2446.575546 m³/day |
| cusec to MGD | 0.6463168831 MGD |
| cusec to MGD (imp) | 0.5381713837 MGD (imp) |
Frequently asked questions
How many acre-feet per day are in 1 cusec?
1 ft³/s = 1.983471074 acre-ft/day.
How do I convert cusecs to acre-feet per day?
Multiply the value in ft³/s by 1.983471074. For example, 15 ft³/s × 1.983471074 = 29.75206612 acre-ft/day.
Is the ft³/s to acre-ft/day conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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, "cubic foot per second".
- 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). Convert Cusecs to Acre-feet per Day (ft3/s to acre-ft/day). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/cusecs-to-acre-feet-per-day/
IEEE
Scientific Converters, "Convert Cusecs to Acre-feet per Day (ft3/s to acre-ft/day)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/cusecs-to-acre-feet-per-day/