Last updated: June 04, 2025

Milliohm to Kiloohm Converter

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Milliohms to Kiloohms (mΩ to kΩ) Converter

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

Definitions of Ohm, Milliohm, and Kiloohm

Let’s get started by understanding the key definitions of Ohm (Ω), Milliohm (mΩ), and kiloohm (kΩ). 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 thousand milliohms (103 or 1,000 mΩ).

Ohms to Milliohms conversion scale
Ohms to milliohms conversion scale

What is Milliohm?

A milliohm (mΩ) is a unit of electrical resistance in the SI system equal to one thousandth (1/1,000) of an ohm (10-3 Ω).

What is Milliohm (mΩ)?
What is Milliohm (mΩ)?

It is commonly used in fields such as power distribution, precision electronic testing, and industrial motor evaluation. Accurately measuring very low resistance values is essential for determining the efficiency and reliability of these systems.

What is Kiloohm?

A kiloohm (kΩ) is a unit of electrical resistance in the SI system equal to one thousand (1,000) ohms (103 Ω).

What is Kiloohm (kΩ)?
What is kiloohm (kΩ)?

It is commonly used in electronics design, industrial sensor calibration, and audio equipment circuitry, where resistor values in the thousands of ohms simplify component labeling, schematic readability, and precision measurements.

mΩ to kΩ 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 milli- prefix in the International System of Units (SI) corresponds to a multiplier of 10-3 (0.001) while the kilo- prefix represents 103 (1,000).

To convert milliohms (mΩ) to kiloohms (kΩ), divide the resistance value in milliohms by 106 (1,000,000), since 1 kiloohm equals 1,000,000 milliohms.

R(kΩ) = R(mΩ) ÷ 106 = R(mΩ) ÷ 1,000,000

$$\text{R}_\text{(kΩ)} = \frac{\text{R}_\text{(mΩ)}}{1{,}000{,}000}$$

Or remember the mΩ-to-kΩ conversion factor: 1 mΩ = 10-6 = 0.000001 kΩ

mΩ to kΩ conversion table

The conversion table below provides a handy reference for converting electrical resistance measurement units from milliohms (mΩ) to kiloohms (kΩ). It covers a range from 0.1 mΩ to 1,000 mΩ, allowing for easy and quick conversions between these units of measurement.

Milliohms (mΩ)Kiloohms (kΩ)
0.1 mΩ0.0000001 kΩ
0.5 mΩ0.0000005 kΩ
1 mΩ0.000001 kΩ
2 mΩ0.000002 kΩ
4 mΩ0.000004 kΩ
5 mΩ0.000005 kΩ
10 mΩ0.00001 kΩ
20 mΩ0.00002 kΩ
30 mΩ0.00003 kΩ
40 mΩ0.00004 kΩ
50 mΩ0.00005 kΩ
60 mΩ0.00006 kΩ
70 mΩ0.00007 kΩ
80 mΩ0.00008 kΩ
90 mΩ0.00009 kΩ
100 mΩ0.0001 kΩ
200 mΩ0.0002 kΩ
500 mΩ0.0005 kΩ
800 mΩ0.0008 kΩ
1,000 mΩ0.001 kΩ
Milliohms to kiloohms (mΩ to kΩ) conversion table

Examples

Now, let's look at an example that illustrates the calculations required to convert from milliohms to kiloohms (mΩ to kΩ).

Example: LED Driver Circuit Analysis

In LED driver circuits, even very low resistance values can affect performance. An engineer might convert a measured resistance from milliohms to kiloohms to maintain consistent unit usage across the design documentation.

If an LED driver's series resistor has a measured resistance of 750 mΩ, how do you express it in kiloohms?

Solution

Since 1 kiloohm (kΩ) = 1,000,000 milliohms (mΩ), we can convert 750 mΩ to kiloohms by using the following formula:

$$\text{R}_\text{(kΩ)} = \frac{\text{R}_\text{(mΩ)}}{1{,}000{,}000}$$
$$\text{R}_\text{(kΩ)} = \frac{750}{1{,}000{,}000} = \boxed{0.00075 \text{ kΩ}}$$

Therefore, the 750 mΩ electrical resistance is equivalent to 0.00075 kΩ.

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

  1. Enter the value in milliohms: For this example, enter 750 into the From box.
  2. View the result: The converter instantly calculates and displays the equivalent value in kiloohms: 0.00075 kΩ.
Milliohms to kiloohms converter example
Steps to convert from milliohms to kiloohms with our calculator

FAQs

Is 1 milliohm or 1 kiloohm larger?

A kiloohm (kΩ) is a million times bigger than a milliohm (mΩ). Here are the relationships between the units:

  • 1 kΩ = 106 = 1,000,000 mΩ
  • 1 mΩ = 10-6 = 1 ÷ 1,000,000 = 0.000001 kΩ

How to convert from milliohms to kiloohms?

To convert electrical resistance from milliohms (mΩ) to kiloohms (kΩ), follow these simple steps:

  • Step 1: Write down the electrical resistance value in milliohms (mΩ).
  • Step 2: Divide it by a million (1,000,000).
  • Step 3: The result is the value of the electrical resistance in kiloohms (kΩ).

Why do I need to convert milliohms to kiloohms?

Converting milliohms (mΩ) to kiloohms (kΩ) is especially useful when you need to standardize or compare resistance values across a system where most measurements are reported in kiloohms. When low milliohm values appear as decimals or fractional numbers, converting them to kiloohms provides consistency and minimizes the risk of misinterpretation.

For instance, a resistance measured at 600 mΩ can be expressed as 0.0006 kΩ. This conversion aligns the units, making documentation, analysis, and simulation more uniform and easier to manage.

You now know how to convert electrical resistance from milliohms (mΩ) to kiloohms (kΩ). You can quickly use our calculator to convert between the electric resistance measurement units to save time for future calculations.

Milliohm to Kiloohm Converter

About this app

Milliohm to Kiloohm Converter

Our milliohms to kiloohms (mΩ to kΩ) converter is a simple web app for converting electrical resistance measurement units between milliohms (mΩ) and kiloohms (kΩ), 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.

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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