Convert Ohm-metres to Milliohm-metres
Convert Ohm-metres (Ω·m) to Milliohm-metres (mΩ·m) instantly and accurately.
Conversion Formula
mΩ·m = Ω·m × 1000
About Ohm-metres
The ohm-metre (Ω·m) is the SI coherent unit of electrical resistivity, equal to 1 V·m/A = 1 kg·m³·A⁻²·s⁻³. Seawater is ≈0.2 Ω·m; deionised water is ~18 MΩ·cm = 180 kΩ·m; silicon carbide ≈0.1-10 Ω·m; IEC 60287 specifies cable insulation resistivity in Ω·m. 1 Ω·m = 10² Ω·cm = 10⁶ µΩ·m.
About Milliohm-metres
The milliohm-metre (mΩ·m) equals 10⁻³ Ω·m, the scale for highly resistive alloys, graphite, and transition-metal oxides. Carbon-graphite brushes used in DC motors have resistivity of 20-100 mΩ·m; ferrites used in power magnetics are 0.1-10 mΩ·m; polyaniline conducting polymer films are in the mΩ·m range when fully protonated. 1 mΩ·m = 10⁻³ Ω·m = 10 Ω·cm.
Quick Reference Table
| Ohm-metres (Ω·m) | Milliohm-metres (mΩ·m) |
|---|---|
| 1 Ω·m | 1000 mΩ·m |
| 2 Ω·m | 2000 mΩ·m |
| 5 Ω·m | 5000 mΩ·m |
| 10 Ω·m | 10000 mΩ·m |
| 25 Ω·m | 25000 mΩ·m |
| 50 Ω·m | 50000 mΩ·m |
| 100 Ω·m | 100000 mΩ·m |