Convert Cubic Metres per Day to Cumecs (m3/day to m3/s)
1 cubic metre per day (m³/day) = 0.00001157407407 cumecs (m³/s). 1 m³/s = 86400 m³/day. Example: 15 m³/day = 15 × 0.00001157407407 = 0.0001736111111 m³/s.
Also searched as cubic metres per day to m3/s, cubic metres per day in m3/s, cubic metres per day into cumecs, m3/day to m3/s, m3/day in cumecs, m3/day into cumec, cubic metre per day to cumec, m3/day to cumecs converter, cubic meters per day to cumecs and how many cumecs in a cubic metre per day.
1 m³/day = 0.00001157407407 m³/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cubic metre per day to cumec converter to paste a column from Excel.
How to Convert Cubic Metre per Day to Cumec
- 1 m³/day = 0.00001157407407 m³/s
- 1 m³/s = 86400 m³/day
- Example: convert 15 m³/day to m³/s: 15 m³/day = 15 × 0.00001157407407 m³/s = 0.0001736111111 m³/s
Formula
m³/s = m³/day × 0.00001157407407407
or m³/s = m³/day ÷ 86400
Derivation from SI units:
- 1 m³/day = 1/86,400 m³/s; one kilolitre per day (KLD).
- 1 cumec = 1 m³/s.
Both units are defined exactly, so the factor is exact. Cubic Metre per Day definition: cubic metre per day; Cumec definition: cumec.
Worked examples
- A reading of 500 m³/day converts to 0.005787037037 m³/s.
500 m³/day × 0.00001157407407 = 0.005787037037 m³/s - A value of 10000 m³/day is 0.1157407407 m³/s.
10000 m³/day × 0.00001157407407 = 0.1157407407 m³/s
Cubic Metre per Day to Cumec conversion table
| Cubic Metres per Day (m³/day) | Cumecs (m³/s) |
|---|---|
| 10 m³/day | 0.0001157407407 m³/s |
| 50 m³/day | 0.0005787037037 m³/s |
| 100 m³/day | 0.001157407407 m³/s |
| 500 m³/day | 0.005787037037 m³/s |
| 1000 m³/day | 0.01157407407 m³/s |
| 5000 m³/day | 0.05787037037 m³/s |
| 10000 m³/day | 0.1157407407 m³/s |
| 50000 m³/day | 0.5787037037 m³/s |
| 100000 m³/day | 1.157407407 m³/s |
| 1000000 m³/day | 11.57407407 m³/s |
Where it's used
Cubic Metres per Day are used for STP and ETP capacity (KLD), while cumecs appear in river and flood discharge. 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 cumec | 0.00001157407407 m³/s |
| cubic metre per day to cusec | 0.0004087345685 ft³/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 cumecs are in 1 cubic metre per day?
1 m³/day = 0.00001157407407 m³/s.
How do I convert cubic metres per day to cumecs?
Multiply the value in m³/day by 0.00001157407407, or divide it by 86400. For example, 15 m³/day × 0.00001157407407 = 0.0001736111111 m³/s.
Is the m³/day to m³/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).
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 Cumecs (m3/day to m3/s). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/cubic-meters-per-day-to-cumecs/
IEEE
Scientific Converters, "Convert Cubic Metres per Day to Cumecs (m3/day to m3/s)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/cubic-meters-per-day-to-cumecs/