What is being measured?
Electrical resistance relates voltage and current under the stated circuit model. It is distinct from resistivity, which includes material and geometry considerations.
Prefixes are SI decimal powers. Convert within this quantity only.
Meaning of MΩ
Megaohms uses the symbol MΩ in this library and measures electrical resistance. Under the stated reference convention, 1 MΩ = approximately 1000000 Ω. This equivalence changes how a known value is written. It does not increase measurement accuracy or establish whether a measurement is appropriate to a real application.
Conversion method
Multiply the value by the source factor (1000000), then divide by the target factor (1). The factor ratio expresses the same electrical resistance measurement in the other unit.
Worked example
For a known value of 10 MΩ, the reference conversion gives 10000000 Ω. Converting that result back gives approximately 10 MΩ. This reverse check helps catch a reversed factor, but matching round-trip arithmetic alone does not independently verify a source definition.
Common reference values
| Input (MΩ) | Reference equivalent (Ω) |
|---|---|
| 1 | 1000000 |
| 5 | 5000000 |
| 10 | 10000000 |
| 25 | 25000000 |
| 50 | 50000000 |
| 100 | 100000000 |
Compare one MΩ with other units
| Target unit | Equivalent of 1 MΩ | Definition guide |
|---|---|---|
| Ohms (Ω) | 1000000 | Read definition |
| Milliohms (mΩ) | 1000000000 | Read definition |
| Microohms (µΩ) | 1000000000000 | Read definition |
| Kiloohms (kΩ) | 1000 | Read definition |
| Gigaohms (GΩ) | 0.001 | Read definition |
| Teraohms (TΩ) | 0.000001 | Read definition |
Precision and common mistakes
- Keep the source and target quantity consistent. A matching symbol is not enough to establish a compatible definition.
- Record the original measurement precision. Showing twelve significant digits in a table does not make a rounded input more precise.
- Check symbol capitalization, prefixes and any regional convention in the source. Use the displayed unit definition rather than a similarly named unit.
- Factors involving repeating fractions or π use finite numerical precision. Round the final answer to the precision justified by your input.
Use a working converter
- Electrical resistance converter
- Megaohms to Ohms converter
- Megaohms to Kiloohms converter
- Megaohms to Milliohms converter
- Megaohms to Microohms converter
- Megaohms to Gigaohms converter
Source and verification scope
Examples and tables are computed from the versioned unit definitions used by the linked converters. The source access dates appear below. Computandum is independent of the cited organizations; a citation does not mean that a publisher endorses this page or an actual project.