Electrical
ΩtomΩ
Convert ohms (Ω) to milli-ohms (mΩ).
Factor1 Ω = 1000 mΩ
Converter
Ω
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mΩ
Rendered to 6 significant figures.
Formula
Formula
mΩ = Ω × 1000
Multiply any value in ohms by 1000 to obtain the value in milli-ohms.
Worked example
Convert 1 Ω to mΩ.
- 01Start with 1 Ω.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 mΩ.
Result1 Ω = 1000 mΩ
Conversion table
| Ω | mΩ |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Ω to mΩ?
1 Ω equals 1000 mΩ. To convert, multiply the value in ohms by 1000.
How do I convert 1 Ω to mΩ?
1 Ω = 1000 mΩ. For any value, multiply by 1000.
How do I convert mΩ back to Ω?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 mΩ = 0.001 Ω.
When would I need to convert ohm to milli-ohm?
Resistance conversions between Ω and mΩ are used in electrical-network analysis, instrumentation (RTD/thermistor specification), grounding and bonding measurements, and electronics design. Ohms cover most circuit calculations; kΩ and MΩ appear in input-impedance specs, while milli-ohms cover bus-bar joints and shunt resistors.
Is the conversion exact?
Yes. Both Ω and mΩ are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).