Convert MCM to TMC
1 million cubic metres (MCM) = 0.03531466672 TMC. 1 TMC = 28.31684659 MCM. Example: 1000 MCM = 1000 × 0.03531466672 = 35.31466672 TMC.
Also searched as MCM to TMC, million cubic meters to tmcft and mcm to tmc.
1 MCM = 0.03531466672 TMC
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk MCM to TMC converter to paste a column from Excel.
How to Convert MCM to TMC
- 1 MCM = 0.03531466672 TMC
- 1 TMC = 28.31684659 MCM
- Example: convert 1000 MCM to TMC: 1000 MCM = 1000 × 0.03531466672 TMC = 35.31466672 TMC
Formula
TMC = MCM × 0.03531466672149
or TMC = MCM ÷ 28.316846592
Derivation from SI units:
- 1 MCM = 10⁶ m³ = 1 hm³ (cubic hectometre).
- 1 TMC = 10⁹ ft³ = 28.316846592 MCM.
Both units are defined exactly, so the factor is exact. MCM definition: million cubic metres; TMC definition: TMC.
Worked examples
- A reservoir of 1000 MCM holds 35.31466672 TMC.
1000 MCM × 0.03531466672 = 35.31466672 TMC - 100 MCM is 3.531466672 TMC.
100 MCM × 0.03531466672 = 3.531466672 TMC
MCM to TMC conversion table
| MCM | TMC |
|---|---|
| 0.1 MCM | 0.003531466672 TMC |
| 0.5 MCM | 0.01765733336 TMC |
| 1 MCM | 0.03531466672 TMC |
| 5 MCM | 0.1765733336 TMC |
| 10 MCM | 0.3531466672 TMC |
| 50 MCM | 1.765733336 TMC |
| 100 MCM | 3.531466672 TMC |
| 500 MCM | 17.65733336 TMC |
| 1000 MCM | 35.31466672 TMC |
| 10000 MCM | 353.1466672 TMC |
Where it's used
Storages in MCM from CWC bulletins are converted to TMC to compare with state releases and tribunal awards. Divide by 28.316846592.
MCM to other water volume units
| Conversion | 1 MCM equals |
|---|---|
| MCM to TMC | 0.03531466672 TMC |
| MCM to BCM | 0.001 BCM |
| MCM to acre-foot | 810.7131938 acre-ft |
| MCM to cubic metre | 1000000 m³ |
| MCM to Mcft | 35.31466672 Mcft |
| MCM to MAF | 0.0008107131938 MAF |
| MCM to hectare-metre | 100 ha·m |
| MCM to megalitre | 1000 ML |
Show 2 more units
| MCM to cubic kilometre | 0.001 km³ |
|---|---|
| MCM to gigalitre | 1 GL |
Frequently asked questions
How many TMC is 1 MCM?
1 MCM = 0.03531466672 TMC, and 28.32 MCM make 1 TMC.
How many TMC are in 1 million cubic metres?
1 MCM = 0.03531466672 TMC.
How do I convert million cubic metres to TMC?
Multiply the value in MCM by 0.03531466672, or divide it by 28.31684659. For example, 1000 MCM × 0.03531466672 = 35.31466672 TMC.
Is the MCM to TMC 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).
- 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".
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 MCM to TMC. Retrieved October 29, 2026, from https://scientificconverters.com/water-volume/mcm-to-tmc/
IEEE
Scientific Converters, "Convert MCM to TMC," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/water-volume/mcm-to-tmc/