Convert Cubic Metres per Day to Cusecs (m3/day to ft3/s)
1 cubic metre per day (m³/day) = 0.0004087345685 cusecs (ft³/s). 1 ft³/s = 2446.575546 m³/day. Example: 15 m³/day = 15 × 0.0004087345685 = 0.006131018528 ft³/s.
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1 m³/day = 0.0004087345685 ft³/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cubic metre per day to cusec converter to paste a column from Excel.
How to Convert Cubic Metre per Day to Cusec
- 1 m³/day = 0.0004087345685 ft³/s
- 1 ft³/s = 2446.575546 m³/day
- Example: convert 15 m³/day to ft³/s: 15 m³/day = 15 × 0.0004087345685 ft³/s = 0.006131018528 ft³/s
Formula
ft³/s = m³/day × 0.0004087345685357
or ft³/s = m³/day ÷ 2446.575545549
Derivation from SI units:
- 1 m³/day = 1/86,400 m³/s; one kilolitre per day (KLD).
- 1 cusec = 1 ft³/s = 0.028316846592 m³/s.
- 1 m³/day = 0.00001157407407407 m³/s ÷ 0.028316846592 m³/s per ft³/s = 0.0004087345685357 ft³/s
Both units are defined exactly, so the factor is exact. Cubic Metre per Day definition: cubic metre per day; Cusec definition: cusec.
Worked examples
- A reading of 500 m³/day converts to 0.2043672843 ft³/s.
500 m³/day × 0.0004087345685 = 0.2043672843 ft³/s - A value of 10000 m³/day is 4.087345685 ft³/s.
10000 m³/day × 0.0004087345685 = 4.087345685 ft³/s
Cubic Metre per Day to Cusec conversion table
| Cubic Metres per Day (m³/day) | Cusecs (ft³/s) |
|---|---|
| 10 m³/day | 0.004087345685 ft³/s |
| 50 m³/day | 0.02043672843 ft³/s |
| 100 m³/day | 0.04087345685 ft³/s |
| 500 m³/day | 0.2043672843 ft³/s |
| 1000 m³/day | 0.4087345685 ft³/s |
| 5000 m³/day | 2.043672843 ft³/s |
| 10000 m³/day | 4.087345685 ft³/s |
| 50000 m³/day | 20.43672843 ft³/s |
| 100000 m³/day | 40.87345685 ft³/s |
| 1000000 m³/day | 408.7345685 ft³/s |
Where it's used
Cubic Metres per Day are used for STP and ETP capacity (KLD), while cusecs appear in canal and dam releases in India (e.g. Cauvery releases). Both measure volumetric discharge of rivers, canals and water supply, so the conversion is a fixed factor.
Cubic Metre per Day to other water discharge units
| Conversion | 1 m³/day equals |
|---|---|
| cubic metre per day to cusec | 0.0004087345685 ft³/s |
| cubic metre per day to cumec | 0.00001157407407 m³/s |
| cubic metre per day to MLD | 0.001 MLD |
| cubic metre per day to litre per second | 0.01157407407 L/s |
| cubic metre per day to MGD | 0.0002641720524 MGD |
| cubic metre per day to MGD (imp) | 0.0002199692483 MGD (imp) |
| cubic metre per day to acre-foot per day | 0.0008107131938 acre-ft/day |
Frequently asked questions
How many cusecs are in 1 cubic metre per day?
1 m³/day = 0.0004087345685 ft³/s.
How do I convert cubic metres per day to cusecs?
Multiply the value in m³/day by 0.0004087345685, or divide it by 2446.575546. For example, 15 m³/day × 0.0004087345685 = 0.006131018528 ft³/s.
Is the m³/day 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 Cubic Metres per Day to Cusecs (m3/day to ft3/s). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/cubic-meters-per-day-to-cusecs/
IEEE
Scientific Converters, "Convert Cubic Metres per Day to Cusecs (m3/day to ft3/s)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/cubic-meters-per-day-to-cusecs/