Milliohms to Megohms Converter
Enter the electrical resistance in milliohms below to convert it to megohms.
Convert Milliohms to Megohms
Enter a value in milliohms (mΩ) to convert to megohms (MΩ).
Milliohm to Megohm Conversion Table
Table showing various milliohm measurements converted to megohms. Click any preset value or arrow to load it into the converter.
| Milliohms (mΩ) | Megohms (MΩ) |
|---|---|
| 1 mΩ | 1e-9 MΩ |
| 10 mΩ | 0.00000001 MΩ |
| 100 mΩ | 0.0000001 MΩ |
| 1,000 mΩ | 0.000001 MΩ |
| 10,000 mΩ | 0.00001 MΩ |
| 100,000 mΩ | 0.0001 MΩ |
| 1,000,000 mΩ | 0.001 MΩ |
| 5,000,000 mΩ | 0.005 MΩ |
| 10,000,000 mΩ | 0.01 MΩ |
| 25,400,000 mΩ | 0.0254 MΩ |
How to Convert Milliohms to Megohms
To convert milliohms to megohms, multiply the electrical resistance by the following conversion ratio: 1e-9 megohms/milliohm.
Since one milliohm is equal to 1e-9 megohms, you can use this simple formula to convert:
The electrical resistance in megohms is equal to the electrical resistance in milliohms multiplied by 1e-9.
For example, here's how to convert 5 milliohms to megohms using the formula above.
How Many Megohms Are in a Milliohm?
There are 1e-9 megohms in a milliohm, which is why we use this value in the formula above.
Our milliohm to megohm calculator automatically converts your electrical resistance measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Milliohms and megohms are both units used to measure electrical resistance. Keep reading to learn more about each unit.
What Is a Milliohm?
A milliohm is a unit of electrical resistance equal to 1/1,000 of an ohm (0.001 Ω). One-thousandth of an Ohm. [1]
The milliohm is classified as a metric and SI-compatible unit of electrical resistance. Milliohms can be abbreviated as mΩ; for example, 1 milliohm can be written as 1 mΩ.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliohm (mΩ) a convenient decimal multiple of the ohm (Ω).
In practice, milliohms (mΩ) are widely used across fine-tolerance laboratory, analytical, and micro-scale electrical resistance measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Megohm?
A megohm is a unit of electrical resistance equal to 1,000,000 ohms (Ω), the base unit for electrical resistance. Equal to 1,000,000 Ohms (1,000 kΩ). [2]
The megohm is classified as an International System of Units (SI) unit of electrical resistance. Megohms can be abbreviated as MΩ; for example, 1 megohm can be written as 1 MΩ.
When working with megohms (MΩ) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, megohms (MΩ) are widely used across large-scale industrial, bulk, and macro-level electrical resistance specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting electrical resistance between milliohms (mΩ) and megohms (MΩ), keep full floating-point precision (1 mΩ = 1e-9 MΩ; 1 MΩ = 1,000,000,000 mΩ) during intermediate calculations and round only the final megohm figure to match your instrument tolerance.
More Milliohm & Megohm Conversions
Need to calculate in the opposite direction? Use our megohms to milliohms calculator to switch your starting unit immediately. You can also explore related tools such as converting megohms to milliohms, converting ohms to megohms, or converting megohms to ohms.
Convert from Milliohms
Convert to Megohms
Frequently Asked Questions
References
- [1]NIST CUU StandardNIST CUU (Derived SI Unit: Ohm (Ω))·Electrical Resistance Metrology Standard — Milliohms (mΩ) to Megohms (MΩ)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Electric Current)·Unit Specifications: Milliohm (mΩ) & Megohm (MΩ)
- [3]BIPM ReferenceBIPM (SI Prefixes (mΩ, kΩ, MΩ, GΩ))·Conversion Factors & Mathematical Basis (mΩ to MΩ)