Convert Cumecs to MLD (m3/s to MLD)
1 cumec (m³/s) = 86.4 million litres per day (MLD). 1 MLD = 0.01157407407 m³/s. Example: 15 m³/s = 15 × 86.4 = 1296 MLD.
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1 m³/s = 86.4 MLD
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cumec to MLD converter to paste a column from Excel.
How to Convert Cumec to MLD
- 1 m³/s = 86.4 MLD
- 1 MLD = 0.01157407407 m³/s
- Example: convert 15 m³/s to MLD: 15 m³/s = 15 × 86.4 MLD = 1296 MLD
Formula
MLD = m³/s × 86.4
Derivation from SI units:
- 1 cumec = 1 m³/s.
- 1 MLD = 10⁶ L/day = 1000 m³/day = 1000/86,400 m³/s.
Both units are defined exactly, so the factor is exact. Cumec definition: cumec; MLD definition: million litres per day.
Worked examples
- A reading of 5 m³/s converts to 432 MLD.
5 m³/s × 86.4 = 432 MLD - A value of 100 m³/s is 8640 MLD.
100 m³/s × 86.4 = 8640 MLD
Cumec to MLD conversion table
| Cumecs (m³/s) | MLD |
|---|---|
| 0.1 m³/s | 8.64 MLD |
| 0.5 m³/s | 43.2 MLD |
| 1 m³/s | 86.4 MLD |
| 5 m³/s | 432 MLD |
| 10 m³/s | 864 MLD |
| 50 m³/s | 4320 MLD |
| 100 m³/s | 8640 MLD |
| 500 m³/s | 43200 MLD |
| 1000 m³/s | 86400 MLD |
| 10000 m³/s | 864000 MLD |
Where it's used
Cumecs are used for river and flood discharge, while million litres per day appear in water treatment and sewage plant capacity. Both measure volumetric discharge of rivers, canals and water supply, so the conversion is a fixed factor.
Cumec to other water discharge units
| Conversion | 1 m³/s equals |
|---|---|
| cumec to MLD | 86.4 MLD |
| cumec to cusec | 35.31466672 ft³/s |
| 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 million litres per day are in 1 cumec?
1 m³/s = 86.4 MLD.
How do I convert cumecs to million litres per day?
Multiply the value in m³/s by 86.4. For example, 15 m³/s × 86.4 = 1296 MLD.
Is the m³/s to MLD 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 Cumecs to MLD (m3/s to MLD). Retrieved October 29, 2026, from https://scientificconverters.com/discharge/cumecs-to-mld/
IEEE
Scientific Converters, "Convert Cumecs to MLD (m3/s to MLD)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/discharge/cumecs-to-mld/