Megohms to Ohms Converter
Enter the electrical resistance in megohms below to convert it to ohms.
Convert Megohms to Ohms
Enter a value in megohms (MΩ) to convert to ohms (Ω).
Megohm to Ohm Conversion Table
Table showing various megohm measurements converted to ohms. Click any preset value or arrow to load it into the converter.
How to Convert Megohms to Ohms
To convert megohms to ohms, multiply the electrical resistance by the following conversion ratio: 1,000,000 ohms/megohm.
Since one megohm is equal to 1,000,000 ohms, you can use this simple formula to convert:
The electrical resistance in ohms is equal to the electrical resistance in megohms multiplied by 1,000,000.
For example, here's how to convert 2.2 megohms to ohms using the formula above.
How Many Ohms Are in a Megohm?
There are 1,000,000 ohms in a megohm, which is why we use this value in the formula above.
Our megohm to ohm calculator automatically converts your electrical resistance measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Megohms and ohms are both units used to measure electrical resistance. Keep reading to learn more about each unit.
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). [1]
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.
What Is an Ohm?
SI unit of electrical resistance (1 V/A). It serves as a primary reference unit for measuring electrical resistance across scientific and practical applications. [2]
The ohm is classified as an International System of Units (SI) unit of electrical resistance. Ohms can be abbreviated as Ω; for example, 1 ohm can be written as 1 Ω.
As the primary coherent reference unit for electrical resistance in this category, all other electrical resistance units are mathematically anchored to the ohm (Ω).
In practice, ohms (Ω) are widely used across standard electrical resistance applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting electrical resistance between megohms (MΩ) and ohms (Ω), keep full floating-point precision (1 MΩ = 1,000,000 Ω; 1 Ω = 0.000001 MΩ) during intermediate calculations and round only the final ohm figure to match your instrument tolerance.
More Megohm & Ohm Conversions
Need to calculate in the opposite direction? Use our ohms to megohms converter (Ω to MΩ) to switch your starting unit immediately. You can also explore related tools such as converting kiloohms to ohms, or converting ohms to kiloohms.
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Frequently Asked Questions
References
- [1]NIST CUU StandardNIST CUU (Derived SI Unit: Ohm (Ω))·Electrical Resistance Metrology Standard — Megohms (MΩ) to Ohms (Ω)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Electric Current)·Unit Specifications: Megohm (MΩ) & Ohm (Ω)
- [3]BIPM ReferenceBIPM (SI Prefixes (mΩ, kΩ, MΩ, GΩ))·Conversion Factors & Mathematical Basis (MΩ to Ω)