
This article will show how to convert electrical resistance measurement units from kiloohms (kΩ) to ohms (Ω). We will cover essential definitions, provide examples, share relevant formulas, and present tables, along with answers to common questions.
Definitions of Ohm and Kiloohm
Let’s get started by understanding the key definitions of Ohm (Ω)
and Kilo-ohm (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 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.
kΩ to Ω 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).
To convert kiloohms (kΩ) to ohms (Ω), multiply the resistance value in kiloohms by 1,000, since 1 kiloohm equals 1,000 ohms.
R(Ω) = R(kΩ) × 103 = R(kΩ) × 1,000
Or remember the kΩ-to-Ω
conversion factor: 1 kΩ = 1,000 Ω
kΩ to Ω conversion table
The conversion table below provides a handy reference for converting electrical resistance measurement units from kiloohms (kΩ) to ohms (Ω). 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) | Ohms (Ω) |
---|---|
0.1 kΩ | 100 Ω |
0.5 kΩ | 500 Ω |
1 kΩ | 1,000 Ω |
2 kΩ | 2,000 Ω |
4 kΩ | 4,000 Ω |
5 kΩ | 5,000 Ω |
10 kΩ | 10,000 Ω |
20 kΩ | 20,000 Ω |
30 kΩ | 30,000 Ω |
40 kΩ | 40,000 Ω |
50 kΩ | 50,000 Ω |
60 kΩ | 60,000 Ω |
70 kΩ | 70,000 Ω |
80 kΩ | 80,000 Ω |
90 kΩ | 90,000 Ω |
100 kΩ | 100,000 Ω |
200 kΩ | 200,000 Ω |
500 kΩ | 500,000 Ω |
800 kΩ | 800,000 Ω |
1,000 kΩ | 1,000,000 Ω |
Examples
Now, let's look at an example that illustrates the calculations required to convert from kiloohms to ohms (kΩ to Ω).
Example: Audio Amplifier Circuit
An audio amplifier design uses a resistor valued at 3 kΩ for filtering purposes. The design documentation lists resistance in ohms.
Express 3 kΩ in ohms.
Solution
Since 1 kiloohm (kΩ) = 1,000 ohms (Ω), we can convert 3 kΩ
to ohms by using the following formula:
Therefore, the 3 kΩ
electrical resistance is equivalent to 3,000 Ω
.
To solve the problem with our calculator, follow the steps below:
- Enter the value in kiloohms: For this example, enter
3
into the From box. - View the result: The converter instantly calculates and displays the equivalent value in ohms:
3,000 Ω
.

FAQs
Is 1 kiloohm or 1 ohm larger?
A kiloohm (kΩ) is a thousand times bigger than an ohm (Ω). Here are the relationships between the units:
1 kΩ = 103 = 1,000 Ω
1 Ω = 10-3 = 1 ÷ 1,000 = 0.001 kΩ
How to convert from kiloohms to ohms?
To convert electrical resistance from kiloohms (kΩ) to ohms (Ω), follow these simple steps:
- Step 1: Write down the electrical resistance value in kiloohms (kΩ).
- Step 2: Multiply it by a thousand (
1,000
). - Step 3: The result is the value of the electrical resistance in ohms (Ω).
Why do I need to convert kiloohms to ohms?
Converting kiloohms to ohms is needed when your calculations, simulations, or datasheets require consistent units at a lower scale.
Using ohms helps simplify calculations with Ohm's law and ensures that measured or specified resistance values match the expected range for the equipment involved.
You now know how to convert electrical resistance from kiloohms (kΩ) to ohms (Ω). You can quickly use our calculator to convert between electric resistance measurement units, saving time for future calculations.