Resistance conversion
4 units, with ohm as the base. Every value in the factor table is the number you multiply by, so reading across a row converts out of that unit and reading down a column converts into it.
Factor table
| from \ to | mΩ | Ω | kΩ | MΩ |
|---|---|---|---|---|
| mΩ | 1 | 0.001 | 1 × 10⁻⁶ | 1 × 10⁻⁹ |
| Ω | 1000 | 1 | 0.001 | 1 × 10⁻⁶ |
| kΩ | 1 × 10⁶ | 1000 | 1 | 0.001 |
| MΩ | 1 × 10⁹ | 1 × 10⁶ | 1000 | 1 |
Prefixes such as milli, micro and kilo follow the SI prefixes table.
The values are facts and free to use; this table’s selection and presentation are © 2026 ScienceQuest.
Worked example
- 1 kΩ in Ω
- = 1 × 1000
- = 1000 Ω
Convert a number
The table gives the factor; the unit converter does the arithmetic, remembers the units you picked, and turns any conversion into a link you can share.
Calculators that use resistance
- LED Resistor Calculator
- Ohm’s Law Calculator
- RC Time Constant Calculator
- Resistor Colour Code Calculator
- Voltage Divider Calculator
- Wire Resistance Calculator