Convert Megaohms to Microohms
Convert Megaohms (MΩ) to Microohms (µΩ) instantly and accurately.
Conversion Formula
µΩ = MΩ × 1000000000000
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 Microohms
The microohm (µΩ) equals 10⁻⁶ Ω, the practical scale for contact resistance testing, bus-bar joints, and circuit-breaker contacts. A well-made bolted bus-bar connection has contact resistance below 50 µΩ; a 25 mm² copper conductor has resistance of about 0.7 µΩ/mm; IEC 60947 specifies acceptance limits for switchgear contacts in microohms. 1 µΩ = 10⁻³ mΩ = 10³ nΩ.
Quick Reference Table
| Megaohms (MΩ) | Microohms (µΩ) |
|---|---|
| 1 MΩ | 1 × 1012 µΩ |
| 2 MΩ | 2 × 1012 µΩ |
| 5 MΩ | 5 × 1012 µΩ |
| 10 MΩ | 1 × 1013 µΩ |
| 25 MΩ | 2.5 × 1013 µΩ |
| 50 MΩ | 5 × 1013 µΩ |
| 100 MΩ | 1 × 1014 µΩ |