Convert TMC to BCM
1 TMC = 0.02831684659 billion cubic metres (BCM). 1 BCM = 35.31466672 TMC. Example: 15 TMC = 15 × 0.02831684659 = 0.4247526989 BCM.
Also searched as TMC to BCM, TMC in BCM, TMC into billion cubic metres, TMC in billion cubic metres, TMC to billion cubic metres, TMC to billion cubic metres converter, TMC to billion cubic meters and how many billion cubic metres in a TMC.
1 TMC = 0.02831684659 BCM
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk TMC to BCM converter to paste a column from Excel.
How to Convert TMC to BCM
- 1 TMC = 0.02831684659 BCM
- 1 BCM = 35.31466672 TMC
- Example: convert 15 TMC to BCM: 15 TMC = 15 × 0.02831684659 BCM = 0.4247526989 BCM
Formula
BCM = TMC × 0.028316846592
or BCM = TMC ÷ 35.31466672149
Derivation from SI units:
- 1 TMC = 10⁹ ft³ = 28.316846592 MCM.
- 1 BCM = 10⁹ m³ = 1000 MCM = 1 km³.
- 1 TMC = 28.316846592 MCM ÷ 1000 MCM per BCM = 0.028316846592 BCM
Both units are defined exactly, so the factor is exact. TMC definition: TMC; BCM definition: billion cubic metres.
Worked examples
- A reading of 10 TMC converts to 0.2831684659 BCM.
10 TMC × 0.02831684659 = 0.2831684659 BCM - A value of 100 TMC is 2.831684659 BCM.
100 TMC × 0.02831684659 = 2.831684659 BCM
TMC to BCM conversion table
| TMC | BCM |
|---|---|
| 0.5 TMC | 0.0141584233 BCM |
| 1 TMC | 0.02831684659 BCM |
| 5 TMC | 0.141584233 BCM |
| 10 TMC | 0.2831684659 BCM |
| 20 TMC | 0.5663369318 BCM |
| 50 TMC | 1.41584233 BCM |
| 100 TMC | 2.831684659 BCM |
| 177 TMC | 5.012081847 BCM |
| 200 TMC | 5.663369318 BCM |
| 1000 TMC | 28.31684659 BCM |
Where it's used
TMC are used for cauvery, Krishna and Godavari tribunal awards, 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.
TMC to other water volume units
| Conversion | 1 TMC equals |
|---|---|
| TMC to BCM | 0.02831684659 BCM |
| TMC to MCM | 28.31684659 MCM |
| TMC to acre-foot | 22956.84114 acre-ft |
| TMC to cubic metre | 28316846.59 m³ |
| TMC to Mcft | 1000 Mcft |
| TMC to MAF | 0.02295684114 MAF |
| TMC to hectare-metre | 2831.684659 ha·m |
| TMC to megalitre | 28316.84659 ML |
Show 2 more units
| TMC to cubic kilometre | 0.02831684659 km³ |
|---|---|
| TMC to gigalitre | 28.31684659 GL |
Frequently asked questions
How many billion cubic metres are in 1 TMC?
1 TMC = 0.02831684659 BCM.
How do I convert TMC to billion cubic metres?
Multiply the value in TMC by 0.02831684659, or divide it by 35.31466672. For example, 15 TMC × 0.02831684659 = 0.4247526989 BCM.
Is the TMC to BCM 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
- 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".
- 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 TMC to BCM. Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/tmc-to-bcm/
IEEE
Scientific Converters, "Convert TMC to BCM," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/tmc-to-bcm/