Convert Microohms to Nanoohms
Convert Microohms (µΩ) to Nanoohms (nΩ) instantly and accurately.
Conversion Formula
nΩ = µΩ × 1000
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.
About Nanoohms
The nanoohm (nΩ) equals 10⁻⁹ Ω, the same magnitude as the CGS-EMU abohm (1 abΩ = 10⁻⁹ Ω exactly). This scale is used for the lowest measurable resistances in copper busbars at cryogenic temperatures and in precision four-wire measurements of welded or crimped joints; the residual resistance of a high-quality solder joint on 2.5 mm² copper cable falls below 10 nΩ. 1 nΩ = 10⁻³ µΩ = 10⁻⁹ Ω.
Quick Reference Table
| Microohms (µΩ) | Nanoohms (nΩ) |
|---|---|
| 1 µΩ | 1000 nΩ |
| 2 µΩ | 2000 nΩ |
| 5 µΩ | 5000 nΩ |
| 10 µΩ | 10000 nΩ |
| 25 µΩ | 25000 nΩ |
| 50 µΩ | 50000 nΩ |
| 100 µΩ | 100000 nΩ |