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]
According to SI prefixes[2], which are based on powers of 10, an ohm (1 Ω) is equivalent to one thousand milliohms (103 mΩ or 1,000 mΩ).
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.
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.
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.
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
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 mΩ | 0.0000001 kΩ |
| 0.5 mΩ | 0.0000005 kΩ |
| 1 mΩ | 0.000001 kΩ |
| 2 mΩ | 0.000002 kΩ |
| 4 mΩ | 0.000004 kΩ |
| 5 mΩ | 0.000005 kΩ |
| 10 mΩ | 0.00001 kΩ |
| 20 mΩ | 0.00002 kΩ |
| 30 mΩ | 0.00003 kΩ |
| 40 mΩ | 0.00004 kΩ |
| 50 mΩ | 0.00005 kΩ |
| 60 mΩ | 0.00006 kΩ |
| 70 mΩ | 0.00007 kΩ |
| 80 mΩ | 0.00008 kΩ |
| 90 mΩ | 0.00009 kΩ |
| 100 mΩ | 0.0001 kΩ |
| 200 mΩ | 0.0002 kΩ |
| 500 mΩ | 0.0005 kΩ |
| 800 mΩ | 0.0008 kΩ |
| 1,000 mΩ | 0.001 kΩ |
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:
Therefore, the 750 mΩ electrical resistance is equivalent to 0.00075 kΩ.
To solve the problem with our calculator, follow the steps below:
- Enter the value in milliohms: For this example, enter
750into the From box. - View the result: The converter instantly calculates and displays the equivalent value in kiloohms:
0.00075 kΩ.
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 mΩ1 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.
