Convert Cumecs to Cusecs (m3/s to ft3/s)
1 cumec (m³/s) = 35.31466672 cusecs (ft³/s). 1 ft³/s = 0.02831684659 m³/s. Example: 1 m³/s = 1 × 35.31466672 = 35.31466672 ft³/s.
Also searched as cumec to cusec, cumecs to cusecs, m3/s to ft3/s and 1 cumec equal to how many cusec.
1 m³/s = 35.31466672 ft³/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cumec to cusec converter to paste a column from Excel.
How to Convert Cumec to Cusec
- 1 m³/s = 35.31466672 ft³/s
- 1 ft³/s = 0.02831684659 m³/s
- Example: convert 1 m³/s to ft³/s: 1 m³/s = 1 × 35.31466672 ft³/s = 35.31466672 ft³/s
Formula
ft³/s = m³/s × 35.31466672149
Derivation from SI units:
- 1 cumec = 1 m³/s.
- 1 cusec = 1 ft³/s = 0.028316846592 m³/s.
Both units are defined exactly, so the factor is exact. Cumec definition: cumec; Cusec definition: cusec.
Worked examples
- 1 m³/s is 35.31466672 ft³/s.
1 m³/s × 35.31466672 = 35.31466672 ft³/s - A canal carrying 100 m³/s carries 3531.466672 ft³/s.
100 m³/s × 35.31466672 = 3531.466672 ft³/s
Cumec to Cusec conversion table
| Cumecs (m³/s) | Cusecs (ft³/s) |
|---|---|
| 0.1 m³/s | 3.531466672 ft³/s |
| 0.5 m³/s | 17.65733336 ft³/s |
| 1 m³/s | 35.31466672 ft³/s |
| 5 m³/s | 176.5733336 ft³/s |
| 10 m³/s | 353.1466672 ft³/s |
| 50 m³/s | 1765.733336 ft³/s |
| 100 m³/s | 3531.466672 ft³/s |
| 500 m³/s | 17657.33336 ft³/s |
| 1000 m³/s | 35314.66672 ft³/s |
| 10000 m³/s | 353146.6672 ft³/s |
Where it's used
River and canal discharges in cumecs (m³/s) from CWC and design reports are converted to cusecs for state irrigation departments and interstate release orders. Multiply by 35.3147.
Cumec to other water discharge units
| Conversion | 1 m³/s equals |
|---|---|
| cumec to cusec | 35.31466672 ft³/s |
| cumec to MLD | 86.4 MLD |
| cumec to litre per second | 1000 L/s |
| cumec to cubic metre per day | 86400 m³/day |
| cumec to MGD | 22.82446532 MGD |
| cumec to MGD (imp) | 19.00534305 MGD (imp) |
| cumec to acre-foot per day | 70.04561994 acre-ft/day |
Frequently asked questions
How many cusecs make one cumec?
1 cumec = 35.31466672 ft³/s, because one cubic metre is 35.3147 cubic feet.
Are cumec and m³/s the same?
Yes. A cumec is one cubic metre per second; a cusec is one cubic foot per second.
How many cusecs are in 1 cumec?
1 m³/s = 35.31466672 ft³/s.
How do I convert cumecs to cusecs?
Multiply the value in m³/s by 35.31466672. For example, 1 m³/s × 35.31466672 = 35.31466672 ft³/s.
Is the m³/s to ft³/s 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
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units) and Table 8 (non-SI units accepted for use with the SI).
- 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".
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 Cumecs to Cusecs (m3/s to ft3/s). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/cumecs-to-cusecs/
IEEE
Scientific Converters, "Convert Cumecs to Cusecs (m3/s to ft3/s)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/cumecs-to-cusecs/