Convert Megalitres to BCM (ML to BCM)
1 megalitre (ML) = 0.000001 billion cubic metres (BCM). 1 BCM = 1000000 ML. Example: 15 ML = 15 × 0.000001 = 0.000015 BCM.
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1 ML = 0.000001 BCM
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megalitre to BCM converter to paste a column from Excel.
How to Convert Megalitre to BCM
- 1 ML = 0.000001 BCM
- 1 BCM = 1000000 ML
- Example: convert 15 ML to BCM: 15 ML = 15 × 0.000001 BCM = 0.000015 BCM
Formula
BCM = ML ÷ 1000000
Derivation from SI units:
- 1 ML = 10⁶ L = 1000 m³.
- 1 BCM = 10⁹ m³ = 1000 MCM = 1 km³.
- 1 ML = 0.001 MCM ÷ 1000 MCM per BCM = 0.000001 BCM
Both units are defined exactly, so the factor is exact. Megalitre definition: megalitre; BCM definition: billion cubic metres.
Worked examples
- A reading of 50 ML converts to 0.00005 BCM.
50 ML × 0.000001 = 0.00005 BCM - A value of 1000 ML is 0.001 BCM.
1000 ML × 0.000001 = 0.001 BCM
Megalitre to BCM conversion table
| Megalitres (ML) | BCM |
|---|---|
| 1 ML | 0.000001 BCM |
| 5 ML | 0.000005 BCM |
| 10 ML | 0.00001 BCM |
| 50 ML | 0.00005 BCM |
| 100 ML | 0.0001 BCM |
| 500 ML | 0.0005 BCM |
| 1000 ML | 0.001 BCM |
| 5000 ML | 0.005 BCM |
| 10000 ML | 0.01 BCM |
| 100000 ML | 0.1 BCM |
Where it's used
Megalitres are used for australian water entitlements, while billion cubic metres appear in national water resources assessments. 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 BCM | 0.000001 BCM |
| megalitre to MCM | 0.001 MCM |
| 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 billion cubic metres are in 1 megalitre?
1 ML = 0.000001 BCM.
How do I convert megalitres to billion cubic metres?
Multiply the value in ML by 0.000001, or divide it by 1000000. For example, 15 ML × 0.000001 = 0.000015 BCM.
Is the ML to BCM conversion exact?
Yes. Both units are defined exactly, and 1 ML is exactly 0.000001 BCM.
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 BCM (ML to BCM). Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/megaliters-to-bcm/
IEEE
Scientific Converters, "Convert Megalitres to BCM (ML to BCM)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/megaliters-to-bcm/