
This article will show how to convert electrical resistance measurement units from nanoohms (nΩ) to microohms (µΩ). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.
Definitions of Ohm, Nanoohm, and Microohm
Let’s get started by understanding the key definitions of Ohm (Ω)
, Nanoohm (nΩ)
, and Microohm (µΩ)
. 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]

According to SI prefixes[2], which are based on powers of 10, an ohm (1 Ω
) is equivalent to one billion nanoohms (109 nΩ
or 1,000,000,000 nΩ)
.

What is Nanoohm?
A nanoohm (nΩ) is a unit of electrical resistance in the SI system equal to one billionth (1/1,000,000,000
) of an ohm (10-9 Ω
).

Nanoohms become crucial only in extreme precision fields like superconductor research, quantum computing development, or aerospace material testing, where measuring near-zero resistance down to billionths of an ohm determines success or failure of cutting-edge technology.
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
).

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.
nΩ to µΩ 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.

The nano- prefix in the International System of Units (SI) corresponds to a multiplier of 10-9 (0.000000001) while the micro- prefix represents 10-6 (0.000001).
To convert nanoohms (nΩ) to microohms (µΩ), divide the resistance value in nanoohms by 103 (1,000), since 1 microohm equals 1,000 nanoohms.
R(µΩ) = R(nΩ) ÷ 103 = R(nΩ) ÷ 1,000
Or remember the nΩ-to-µΩ
conversion factor: 1 nΩ = 10-3 = 0.001 µΩ
nΩ to µΩ conversion table
The conversion table below provides a handy reference for converting electrical resistance measurement units from nanoohms (nΩ) to microohms (µΩ). It covers a range from 0.1 nΩ
to 1,000 nΩ
, allowing for easy and quick conversions between these units of measurement.
Nanoohms (nΩ) | Microohms (µΩ) |
---|---|
0.1 nΩ | 0.0001 µΩ |
0.5 nΩ | 0.0005 µΩ |
1 nΩ | 0.001 µΩ |
2 nΩ | 0.002 µΩ |
4 nΩ | 0.004 µΩ |
5 nΩ | 0.005 µΩ |
10 nΩ | 0.01 µΩ |
20 nΩ | 0.02 µΩ |
30 nΩ | 0.03 µΩ |
40 nΩ | 0.04 µΩ |
50 nΩ | 0.05 µΩ |
60 nΩ | 0.06 µΩ |
70 nΩ | 0.07 µΩ |
80 nΩ | 0.08 µΩ |
90 nΩ | 0.09 µΩ |
100 nΩ | 0.1 µΩ |
200 nΩ | 0.2 µΩ |
500 nΩ | 0.5 µΩ |
800 nΩ | 0.8 µΩ |
1,000 nΩ | 1 µΩ |
Examples
Now, let's look at an example that illustrates the calculations required to convert from nanoohms to microohms (nΩ to µΩ).
Example: Laboratory Calibration of Ultra-Low Value Resistors
During semiconductor manufacturing, the resistance at bonding pads must be minimized to ensure proper electrical connection. Measurements are taken in nanoohms for high accuracy. Converting the results to microohms allows for straightforward quality comparisons against industry standards.
If a bonding pad shows a resistance of 500 nΩ, what is that in microohms?
Solution
Since 1 microohm (µΩ) = 1,000 nanoohms (nΩ), we can convert 500 nΩ
to microohms by using the following formula:
Therefore, the 500 nΩ
electrical resistance is equivalent to 0.5 µΩ
.
To solve the problem with our calculator, follow the steps below:
- Enter the value in nanoohms: For this example, enter
500
into the From box. - View the result: The converter instantly calculates and displays the equivalent value in microohms:
0.5 µΩ
.

FAQs
Is 1 nanoohm or 1 microohm larger?
A microohm (µΩ) is a thousand times bigger than a nanoohm (nΩ). Here are the relationships between the units:
1 µΩ = 103 = 1,000 nΩ
1 nΩ = 10-3 = 1 ÷ 1,000 = 0.001 µΩ
How to convert from nanoohms to microohms?
To convert electrical resistance from nanoohms (nΩ) to microohms (µΩ), follow these simple steps:
- Step 1: Write down the electrical resistance value in nanoohms (nΩ).
- Step 2: Divide it by a thousand (
1,000
). - Step 3: The result is the value of the electrical resistance in microohms (µΩ).
Why do I need to convert nanoohms to microohms?
Converting nanoohms to microohms is beneficial because nanoohm values are extremely small and can be difficult to work with in practical calculations and comparisons. By converting to microohms, you obtain larger, more manageable numbers that reduce the risk of errors and simplify data interpretation in design models, simulation tools, and technical documentation.
For example, when measuring ultra-low resistance values in high-precision circuits or material testing, expressing the results in microohms allows engineers and researchers to compare and communicate the numbers against industry standards easily.
You now know how to convert electrical resistance from nanoohms (nΩ) to microohms (µΩ). You can quickly use our calculator to convert between electric resistance measurement units, saving time for future calculations.