Ohms to Megaohms Conversion

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

Results 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 an ohm measurement to a megaohm measurement, divide the electrical resistance by the conversion ratio.

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 ohms divided by 1,000,000.

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


The ohm is the resistance between two points of an electrical conductor transmitting a current of one ampere when the potential difference is one volt.[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 states the current between two points on a conductor is proportional to the voltage and inversely proportional to 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

The resistance in ohms is equal to the potential difference in volts divided by the current in amperes.


One megaohm is equal to 1,000,000 ohms, which is the resistance between two points of a conductor with one ampere of current at one volt.

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 106. Megaohms can be abbreviated as MΩ; for example, 1 megaohm can be written as 1 MΩ.

Ohm to Megaohm Conversion Table

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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