Convert Milliohms to Microohms
Convert Milliohms (mΩ) to Microohms (µΩ) instantly and accurately.
Conversion Formula
µΩ = mΩ × 1000
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.
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
| Milliohms (mΩ) | Microohms (µΩ) |
|---|---|
| 1 mΩ | 1000 µΩ |
| 2 mΩ | 2000 µΩ |
| 5 mΩ | 5000 µΩ |
| 10 mΩ | 10000 µΩ |
| 25 mΩ | 25000 µΩ |
| 50 mΩ | 50000 µΩ |
| 100 mΩ | 100000 µΩ |