Megaohm Centimetre (MΩ·cm)
The megaohm centimetre is 10⁶ Ω·cm. Ultrapure water is specified by resistivity: the theoretical maximum at 25 °C is about 18.2 MΩ·cm.
Symbol: MΩ·cm (ASCII: Mohm*cm)
Quantity: electrical resistivity
SI relation: 1 MΩ·cm = 10000 Ω·m (exact)
Derivation: 1 MΩ·cm = 10⁶ Ω·cm = 10⁴ Ω·m
Exact: yes, by definition
Typical uses
- Ultrapure and deionised water (18.2 MΩ·cm)
- Laboratory and semiconductor water systems
- Pharmaceutical purified water
Convert megaohm centimetres to other units
| Conversion | 1 MΩ·cm equals | Reverse |
|---|---|---|
| megaohm centimetre to ohm metre | 10000 Ω·m | ohm metre to megaohm centimetre |
| megaohm centimetre to microohm centimetre | 1000000000000 µΩ·cm | microohm centimetre to megaohm centimetre |
| megaohm centimetre to ohm centimetre | 1000000 Ω·cm | ohm centimetre to megaohm centimetre |
| megaohm centimetre to ohm square millimetre per metre | 10000000000 Ω·mm²/m | ohm square millimetre per metre to megaohm centimetre |
| megaohm centimetre to microohm metre | 10000000000 µΩ·m | microohm metre to megaohm centimetre |
| megaohm centimetre to nanoohm metre | 10000000000000 nΩ·m | nanoohm metre to megaohm centimetre |
| megaohm centimetre to ohm circular mil per foot | 6015304936000 Ω·cmil/ft | ohm circular mil per foot to megaohm centimetre |
| megaohm centimetre to kiloohm centimetre | 1000 kΩ·cm | kiloohm centimetre to megaohm centimetre |
Open the Electrical Resistivity Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
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). Megaohm Centimetre (MΩ·cm). Retrieved October 25, 2026, from https://scientificconverters.com/units/megaohm-centimeter/
IEEE
Scientific Converters, "Megaohm Centimetre (MΩ·cm)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/megaohm-centimeter/