Electrical Resistance Units & Calculator
For an ideal resistor, voltage = current × resistance. Impedance in an AC circuit also includes reactance.
Detailed explanation & worked examples
Conversion method
Base value = input × source factor + source offset. Output = (base value − target offset) ÷ target factor. Only units from this family can be converted together.
Worked example
For the first two units below: 1 Milliohm becomes 0.00100000 Ohm.
| Unit | Multiplier | Offset |
|---|---|---|
| Milliohm | 0.001 | 0 |
| Ohm | 1 | 0 |
| Kiloohm | 1000 | 0 |
| Megaohm | 1000000 | 0 |
For an ideal resistor, voltage = current × resistance. Impedance in an AC circuit also includes reactance.
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