Last updated: June 16, 2025

Microohm to Megaohm (µΩ to MΩ) Converter

Created by
Microohm to megaohm converter

This article will show how to convert electrical resistance measurement units from microohms (µΩ) to megaohms (MΩ). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.

Definitions of Ohm, Microohm, and Megaohm

Let’s get started by understanding the key definitions of Ohm (Ω), Microohm (µΩ), and Megaohm (MΩ). Understanding these terms will enable you to perform conversions with confidence.

What is Ohm?

The ohm (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 is applied across those points, producing a current of one ampere in the conductor, assuming no additional electromotive force is present.[1]

What is Ohm? The definition and illustration
What is Ohm (Ω)?

According to SI prefixes[2], which are based on powers of 10, an ohm (1 Ω) is equivalent to one million microohms (106 µΩ or 1,000,000 µΩ).

Ohms to Milliohms conversion scale
Ohms to microohms conversion scale

What is Microohm?

A microohm (µΩ) is a unit of electrical resistance in the SI system equal to one millionth (1/1,000,000) of an ohm (10-6 Ω).

What is Microohm (µΩ)?
What is Microohm (µΩ)?

It is vital for detecting hidden flaws in high-stakes systems like EV batteries, power grids, and industrial motors. Even a fraction of extra resistance here can cause overheating, energy waste, or catastrophic failures.

What is Megaohm?

A megaohm (MΩ) is a unit of electrical resistance in the SI system equal to one million (1,000,000) ohms (106 Ω).

What is Megaohm (MΩ)?
What is Megaohm (MΩ)?

It is commonly used in high-voltage insulation testing, medical device safety validation, and industrial sensor design, where measuring extreme resistance up to millions of ohms determines critical safety margins and operational reliability.

µΩ to MΩ formula

Let’s take a closer look at the conversion formula so you can carry out these conversions independently, whether using a calculator or doing it manually with pencil and paper.

SI Prefixes and Values
SI multiples and submultiples

The micro- prefix in the International System of Units (SI) corresponds to a multiplier of 10-6 (0.000001) while the mega- prefix represents 106 (1,000,000).

To convert microohms (µΩ) to megaohms (MΩ), divide the resistance value in microohms by 1012 (1,000,000,000,000), since 1 megaohm equals 1,000,000,000,000 microohms.

R(MΩ) = R(µΩ) ÷ 1012 = R(µΩ) ÷ 1,000,000,000,000

$$\text{R}_\text{(MΩ)} = \frac{\text{R}_\text{(µΩ)}}{1{,}000{,}000{,}000{,}000}$$

Or remember the µΩ-to-MΩ conversion factor: 1 µΩ = 10-12 = 0.000000000001 MΩ

µΩ to MΩ conversion table

The conversion table below provides a handy reference for converting electrical resistance measurement units from micro-ohms (µΩ) to mega-ohms (MΩ). It covers a range from 0.1 µΩ to 1,000 µΩ, allowing for easy and quick conversions between these units of measurement.

Microohms (µΩ)Megaohms (MΩ)
0.1 µΩ0.0000000000001 MΩ
0.5 µΩ0.0000000000005 MΩ
1 µΩ0.000000000001 MΩ
2 µΩ0.000000000002 MΩ
4 µΩ0.000000000004 MΩ
5 µΩ0.000000000005 MΩ
10 µΩ0.00000000001 MΩ
20 µΩ0.00000000002 MΩ
30 µΩ0.00000000003 MΩ
40 µΩ0.00000000004 MΩ
50 µΩ0.00000000005 MΩ
60 µΩ0.00000000006 MΩ
70 µΩ0.00000000007 MΩ
80 µΩ0.00000000008 MΩ
90 µΩ0.00000000009 MΩ
100 µΩ0.0000000001 MΩ
200 µΩ0.0000000002 MΩ
500 µΩ0.0000000005 MΩ
800 µΩ0.0000000008 MΩ
1,000 µΩ0.000000001 MΩ
Microohms to megaohms (µΩ to MΩ) conversion table

Examples

Now, let's look at an example that illustrates the calculations required to convert from microohms to megaohms (µΩ to MΩ).

Example: Secure Hardware-Based Key Storage

Modern encryption systems often use hardware security modules (HSMs) to protect cryptographic keys. These modules include specialized circuits where resistance helps regulate signal integrity and prevent electromagnetic leakage. Multiple microohm-level resistors are strategically placed to create a total resistance in the megaohm range, ensuring minimal interference and secure key storage.

If an encryption hardware module includes 200 resistors, each with a resistance of 6,000,000,000 µΩ, what is the total resistance?

Solution

The total resistance produced by 200 resistors connected in series is:

$$\text{R}_\text{(µΩ)} = 200 \times 6{,}000{,}000{,}000 = 1{,}200{,}000{,}000{,}000 \text{ µΩ}$$

Since 1 megaohm (MΩ) = 1012 = 1,000,000,000,000 microohms (µΩ), we can convert 1,200,000,000,000 µΩ to megaohms by using the following formula:

$$\text{R}_\text{(MΩ)} = \frac{\text{R}_\text{(µΩ)}}{1{,}000{,}000{,}000{,}000}$$
$$\text{R}_\text{(MΩ)} = \frac{1{,}200{,}000{,}000{,}000}{1{,}000{,}000{,}000{,}000} = \boxed{1.2 \text{ MΩ}}$$

Therefore, the 1,200,000,000,000 µΩ electrical resistance is equivalent to 1.2 MΩ.

To solve the problem with our calculator, follow the steps below:

  1. Enter the value in microohms: For this example, enter 1,200,000,000,000 or 12e11 into the From box.
  2. View the result: The converter instantly calculates and displays the equivalent value in megaohms: 1.2 MΩ.
Microohms to megaohms converter example
Steps to convert from microohms to megaohms with our calculator

FAQs

Is 1 microohm or 1 megaohm larger?

A megaohm (MΩ) is a trillion times bigger than a microohm (µΩ). Here are the relationships between the units:

  • 1 MΩ = 1012 = 1,000,000,000,000 µΩ
  • 1 µΩ = 10-12 = 1 ÷ 1,000,000,000,000 = 0.000000000001 MΩ

How to convert from microohms to megaohms?

To convert electrical resistance from microohms (µΩ) to megaohms (MΩ), follow these simple steps:

  • Step 1: Write down the electrical resistance value in microohms (µΩ).
  • Step 2: Divide it by a trillion (1,000,000,000,000).
  • Step 3: The result is the value of the electrical resistance in megaohms (MΩ).

Why do I need to convert microohms to megaohms?

Converting microohms to megaohms is helpful when you deal with extremely small resistance values that add up to really large totals. Microohms are very small numbers, and when you add many of them together in a circuit, the total resistance may reach a size that is easier to express in megaohms. This conversion makes the numbers simpler to work with and reduces the potential for calculation errors.

For example, if you have a series of resistors whose microohm values add up to 1,000,000,000,000 µΩ, converting that value to megaohms gives you 1 MΩ. Working with 1 MΩ is much clearer than handling a very large number of microohms.

You now know how to convert electrical resistance from microohms (µΩ) to megaohms (MΩ). You can quickly use our calculator to convert between the electric resistance measurement units to save time for future calculations.

Microohm to Megaohm (µΩ to MΩ) Converter

About this app

Microohm to Megaohm (µΩ to MΩ) Converter

Our microohms to megaohms (µΩ to MΩ) converter is a simple web app for converting electrical resistance measurement units between micro-ohms (µΩ) and mega-ohms (MΩ), with explanations, formulas, examples, and tables.

Availability

You can use the calculator for free as a PWA web app online or install it locally on any modern operating system, including Android, iOS, Windows 11/10, and macOS.

Microohm to Megaohm (µΩ to MΩ) Converter QR
Scan Me
Use Microohm to Megaohm (µΩ to MΩ) Converter as Web App
Similar Calculators

References

2 Sources

  1. ⬆️ Wikipedia contributors. (2025, May 25). Ohm.

    https://en.wikipedia.org/w/index.php?title=Ohm&oldid=1292104943
  2. ⬆️ Metric (SI) Prefixes | NIST. (2010, January 13). NIST.

    https://www.nist.gov/pml/owm/metric-si-prefixes