Resistance Converter
Milliohm (mΩ)
Definition: A milliohm (symbol: mΩ) is a submultiple of the ohm, equal to one-thousandth (1/1,000) of an ohm.
History/origin: As high-precision engineering and power electronics evolved, measuring very low resistance became critical for improving energy efficiency and safety.
Current use: Used to measure the resistance of PCB traces, high-current shunts, and internal resistance of high-performance batteries.
Ohm (Ω)
Definition: The ohm (symbol: Ω) is the SI derived unit of electrical resistance. It is defined as the resistance between two points of a conductor when a constant potential difference of one volt produces a current of one ampere.
History/origin: Named after the German physicist Georg Simon Ohm. It was formally defined in 1861 by the British Association for the Advancement of Science following Ohm's discovery of the mathematical law relating current, voltage, and resistance.
Current use: The ohm is the standard unit for measuring resistance in all types of electrical circuits, components (like resistors), and electronic devices globally.
Milliohm (mΩ) to Ohm (Ω) Conversion Table
| Milliohm (mΩ) [mohm] | Ohm (Ω) [ohm] |
|---|---|
| 0.01 mohm | 0.00001 ohm |
| 0.1 mohm | 0.0001 ohm |
| 1 mohm | 0.001 ohm |
| 2 mohm | 0.002 ohm |
| 3 mohm | 0.003 ohm |
| 5 mohm | 0.005 ohm |
| 10 mohm | 0.01 ohm |
| 20 mohm | 0.02 ohm |
| 50 mohm | 0.05 ohm |
| 100 mohm | 0.1 ohm |
| 1000 mohm | 1 ohm |
How to Convert Milliohm (mΩ) to Ohm (Ω)
1 mohm = 0.001 ohm
1 ohm = 1000 mohm
Example: convert 15 mohm to ohm:
15 mohm = 15 × 0.001 ohm = 0.015 ohm
Did You Know?
- Milliohms (mΩ) are used to measure the resistance of high-quality connectors, battery terminals, and thick power cables where even a tiny amount of resistance can cause energy loss as heat.
- Did you know? Electrical resistance is like friction for electricity. Every material has some resistance; materials with very low resistance are called conductors (like copper), while those with extremely high resistance are insulators (like rubber).