Convert Megalitres to MCM (ML to MCM)
1 megalitre (ML) = 0.001 million cubic metres (MCM). 1 MCM = 1000 ML. Example: 15 ML = 15 × 0.001 = 0.015 MCM.
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1 ML = 0.001 MCM
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megalitre to MCM converter to paste a column from Excel.
How to Convert Megalitre to MCM
- 1 ML = 0.001 MCM
- 1 MCM = 1000 ML
- Example: convert 15 ML to MCM: 15 ML = 15 × 0.001 MCM = 0.015 MCM
Formula
MCM = ML ÷ 1000
Derivation from SI units:
- 1 ML = 10⁶ L = 1000 m³.
- 1 MCM = 10⁶ m³ = 1 hm³ (cubic hectometre).
Both units are defined exactly, so the factor is exact. Megalitre definition: megalitre; MCM definition: million cubic metres.
Worked examples
- A reading of 50 ML converts to 0.05 MCM.
50 ML × 0.001 = 0.05 MCM - A value of 1000 ML is 1 MCM.
1000 ML × 0.001 = 1 MCM
Megalitre to MCM conversion table
| Megalitres (ML) | MCM |
|---|---|
| 1 ML | 0.001 MCM |
| 5 ML | 0.005 MCM |
| 10 ML | 0.01 MCM |
| 50 ML | 0.05 MCM |
| 100 ML | 0.1 MCM |
| 500 ML | 0.5 MCM |
| 1000 ML | 1 MCM |
| 5000 ML | 5 MCM |
| 10000 ML | 10 MCM |
| 100000 ML | 100 MCM |
Where it's used
Megalitres are used for australian water entitlements, while million cubic metres appear in CWC weekly reservoir storage bulletins. Both measure volume of stored or released water (reservoirs, river flows, allocations), so the conversion is a fixed factor.
Megalitre to other water volume units
| Conversion | 1 ML equals |
|---|---|
| megalitre to MCM | 0.001 MCM |
| megalitre to BCM | 0.000001 BCM |
| megalitre to TMC | 0.00003531466672 TMC |
| megalitre to acre-foot | 0.8107131938 acre-ft |
| megalitre to cubic metre | 1000 m³ |
| megalitre to Mcft | 0.03531466672 Mcft |
| megalitre to MAF | 8.107131938 × 10⁻⁷ MAF |
| megalitre to hectare-metre | 0.1 ha·m |
Show 2 more units
| megalitre to cubic kilometre | 0.000001 km³ |
|---|---|
| megalitre to gigalitre | 0.001 GL |
Frequently asked questions
How many million cubic metres are in 1 megalitre?
1 ML = 0.001 MCM.
How do I convert megalitres to million cubic metres?
Multiply the value in ML by 0.001, or divide it by 1000. For example, 15 ML × 0.001 = 0.015 MCM.
Is the ML to MCM conversion exact?
Yes. Both units are defined exactly, and 1 ML is exactly 0.001 MCM.
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 Megalitres to MCM (ML to MCM). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/megaliters-to-mcm/
IEEE
Scientific Converters, "Convert Megalitres to MCM (ML to MCM)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/megaliters-to-mcm/