Ohms to Megaohms Converter

Enter the electrical resistance in ohms below to get the value converted to megaohms.


Result in Megaohms:

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1 Ω = 1.0E-6 MΩ
Hint: use a scientific notation calculator to convert E notation to decimal

Do you want to convert megaohms to ohms?

How to Convert Ohms to Megaohms

To convert a measurement in ohms to a measurement in megaohms, divide the electrical resistance by the following conversion ratio: 1,000,000 ohms/megaohm.

Since one megaohm is equal to 1,000,000 ohms, you can use this simple formula to convert:

megaohms = ohms ÷ 1,000,000

The electrical resistance in megaohms is equal to the electrical resistance in ohms divided by 1,000,000.

For example, here's how to convert 5,000,000 ohms to megaohms using the formula above.
megaohms = (5,000,000 Ω ÷ 1,000,000) = 5 MΩ

Ohms and megaohms are both units used to measure electrical resistance. Keep reading to learn more about each unit of measure.

What Is an Ohm?

An ohm is the resistance between two points of an electrical conductor transmitting a current of one ampere when the electrical potential difference is one volt between the points.[1]

The ohm is the SI derived unit for electrical resistance in the metric system. Ohms can be abbreviated as ; for example, 1 ohm can be written as 1 Ω.

Ohm's Law

Ohm's Law states the current flowing between two points on a conductor is proportional to the voltage and inversely proportional to the resistance. More specifically, the current is equal to the voltage divided by the resistance.

Using Ohm's Law, it's possible to express the resistance in ohms as an expression using current and voltage.

R = VV / IA

Here, the resistance R in ohms is equal to the potential difference V in volts divided by the current I in amperes.

Learn more about ohms.

What Is a Megaohm?

One megaohm is equal to 1,000,000 ohms. A megaohm is the resistance across a conductor with an electrical potential difference of 1,000,000 volts with one ampere of current flowing through it.

The megaohm is a multiple of the ohm, which is the SI derived unit for electrical resistance. In the metric system, "mega" is the prefix for millions, or 106. Megaohms can be abbreviated as MΩ; for example, 1 megaohm can be written as 1 MΩ.

Learn more about megaohms.

Ohm to Megaohm Conversion Table

Table showing various ohm measurements converted to megaohms.
Ohms Megaohms
1 Ω 0.000001 MΩ
2 Ω 0.000002 MΩ
3 Ω 0.000003 MΩ
4 Ω 0.000004 MΩ
5 Ω 0.000005 MΩ
6 Ω 0.000006 MΩ
7 Ω 0.000007 MΩ
8 Ω 0.000008 MΩ
9 Ω 0.000009 MΩ
10 Ω 0.00001 MΩ
100 Ω 0.0001 MΩ
1,000 Ω 0.001 MΩ
10,000 Ω 0.01 MΩ
100,000 Ω 0.1 MΩ
1,000,000 Ω 1 MΩ


  1. International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

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