
This article will show how to convert electrical resistance measurement units from kiloohms (kΩ) to Milliohms (mΩ). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.
Definitions of Ohm, Kiloohm, and Milliohm
Let’s get started by understanding the key definitions of Ohm (Ω)
, Kilo-ohm (kΩ)
, and Milli-ohm (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]

According to SI prefixes[2], which are based on powers of 10, an ohm (1 Ω
) is equivalent to one thousandth (1/1,000
) of a kiloohm (10-3 kΩ
or 0.001 kΩ)
.

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
).

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.
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
).

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.
kΩ 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.

The kilo- prefix in the International System of Units (SI) corresponds to a multiplier of 103 (1,000) while the milli- prefix represents 10-3 (0.001).
To convert kiloohms (kΩ) to milliohms (mΩ), multiply the resistance value in kiloohms by 106 (1,000,000), since 1 kiloohm equals 1,000,000 milliohms.
R(mΩ) = R(kΩ) × 106 = R(kΩ) × 1,000,000
Or remember the kΩ-to-mΩ
conversion factor: 1 kΩ = 106 = 1,000,000 mΩ
kΩ to mΩ conversion table
The conversion table below provides a handy reference for converting electrical resistance measurement units from kiloohms (kΩ) to milliohms (mΩ). It covers a range from 0.1 kΩ
to 1,000 kΩ
, allowing for easy and quick conversions between these units of measurement.
Kiloohms (kΩ) | Milliohms (mΩ) |
---|---|
0.1 kΩ | 100,000 mΩ |
0.5 kΩ | 500,000 mΩ |
1 kΩ | 1,000,000 mΩ |
2 kΩ | 2,000,000 mΩ |
4 kΩ | 4,000,000 mΩ |
5 kΩ | 5,000,000 mΩ |
10 kΩ | 10,000,000 mΩ |
20 kΩ | 20,000,000 mΩ |
30 kΩ | 30,000,000 mΩ |
40 kΩ | 40,000,000 mΩ |
50 kΩ | 50,000,000 mΩ |
60 kΩ | 60,000,000 mΩ |
70 kΩ | 70,000,000 mΩ |
80 kΩ | 80,000,000 mΩ |
90 kΩ | 90,000,000 mΩ |
100 kΩ | 100,000,000 mΩ |
200 kΩ | 200,000,000 mΩ |
500 kΩ | 500,000,000 mΩ |
800 kΩ | 800,000,000 mΩ |
1,000 kΩ | 1,000,000,000 mΩ |
Examples
Now, let's look at an example that illustrates the calculations required to convert from kiloohms to milliohms (kΩ to mΩ).
Example: RF Front-End Bias Resistor Application
An RF front-end design uses a bias resistor with a value of 0.8 kΩ. Due to the demand for precise impedance matching, the resistor value is converted to milliohms for simulation and validation.
What is 0.8 kΩ in milliohms?
Solution
Since 1 kiloohm (kΩ) = 106 = 1,000,000 milliohms (mΩ), we can convert 0.8 kΩ
to milliohms by using the following formula:
Therefore, the 0.8 kΩ
electrical resistance is equivalent to 800,000 mΩ
.
To solve the problem with our calculator, follow the steps below:
- Enter the value in kiloohms: For this example, enter
0.8
into the From box. - View the result: The converter instantly calculates and displays the equivalent value in milliohms:
800,000 mΩ
.

FAQs
Is 1 kiloohm or 1 milliohm 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 kiloohms to milliohms?
To convert electrical resistance from kiloohms (kΩ) to milliohms (mΩ), follow these simple steps:
- Step 1: Write down the electrical resistance value in kiloohms (kΩ).
- Step 2: Multiply it by a million (
106
or1,000,000
). - Step 3: The result is the value of the electrical resistance in milliohms (mΩ).
Why do I need to convert kiloohms to milliohms?
Converting kiloohms to milliohms is essential when precise resistance measurements are needed. Kiloohms work for everyday applications but lack the resolution required for sensor calibration, advanced circuit testing, or detailed simulation models. Using milliohms prevents rounding errors and ensures measurements align with high-precision standards.
You now know how to convert electrical resistance from kiloohms (kΩ) to milliohms (mΩ). You can quickly use our calculator to convert between electric resistance measurement units, saving time for future calculations.