Convert Megaohms to Milliohms
Convert Megaohms (MΩ) to Milliohms (mΩ) instantly and accurately.
Conversion Formula
mΩ = MΩ × 1000000000
About Megaohms
The megaohm (MΩ) equals 10⁶ Ω, the scale of insulation testing and high-impedance analogue circuit design. Insulation testers (meggers) measure cable and motor winding insulation from 0.1-1000 MΩ; pH electrode output impedance is 10-500 MΩ; precision op-amp feedback networks use 1-10 MΩ resistors to set very high signal-source impedance. 1 MΩ = 10⁶ Ω = 10³ kΩ.
About Milliohms
The milliohm (mΩ) equals 10⁻³ Ω, the scale of precision current-sensing shunts, relay contacts, and PCB trace resistance. Current-sensing shunts of 1-10 mΩ allow high-current measurement by detecting the millivolt drop they produce; electrical continuity standards flag connections above a few milliohms; DC winding resistance of large motor coils is typically 0.1-10 mΩ. 1 mΩ = 10⁻³ Ω = 10³ µΩ.
Quick Reference Table
| Megaohms (MΩ) | Milliohms (mΩ) |
|---|---|
| 1 MΩ | 1000000000 mΩ |
| 2 MΩ | 2 × 109 mΩ |
| 5 MΩ | 5 × 109 mΩ |
| 10 MΩ | 1 × 1010 mΩ |
| 25 MΩ | 2.5 × 1010 mΩ |
| 50 MΩ | 5 × 1010 mΩ |
| 100 MΩ | 1 × 1011 mΩ |