One kilohm is exactly 1,000,000 milliohms, so converting kilohms to milliohms is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
Milliohms matter where current is large: contact resistance, shunts and battery internal resistance are all measured in mΩ. Kilohms are the everyday scale of signal electronics — pull-ups, dividers and bias networks are nearly all in kΩ.
Two tables follow: rounded steps for quick lookup, and a set of real reference quantities converted into milliohms, which is usually more useful than the bare number.
The formula
kilohms- The amount you are converting, in kilohms
1,000,000- The exact number of milliohms in one kilohm
milliohms- The converted result
How it works, step by step
- Enter the value in kilohms.
- It is multiplied by 1,000,000, the exact factor between the two units.
- The answer is shown in milliohms, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Heating element, 2 kW at 230 V: 0.0264 kΩ in milliohms
At 0.0264 kΩ (heating element, 2 kw at 230 v), the same quantity in milliohms is 0.0264 × 1e+06 = 26,400 mΩ. One kilohm is 1e+06 milliohms, so the numbers grow as expected.
Multimeter input impedance: 1e+04 kΩ in milliohms
At 1e+04 kΩ (multimeter input impedance), the same quantity in milliohms is 1e+04 × 1e+06 = 1e+10 mΩ. One kilohm is 1e+06 milliohms, so the numbers grow as expected.
How to read your score
Frequently asked questions
How many milliohms are in one kilohm?
Exactly 1,000,000. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert kilohms to milliohms?
milliohms = kilohms × 1,000,000. Reversed, kilohms = milliohms ÷ 1,000,000, which is the same as multiplying by 1e-06.
Which is the bigger unit, the kilohm or the milliohm?
The kilohm. One kilohm equals 1e+06 milliohms.
What does this quantity actually measure?
Both units measure how strongly a component opposes current. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a kilohm?
Kilohms are the everyday scale of signal electronics — pull-ups, dividers and bias networks are nearly all in kΩ.
What is a milliohm?
Milliohms matter where current is large: contact resistance, shunts and battery internal resistance are all measured in mΩ.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Kilohms to milliohms reference tables
| Kilohms | Milliohms |
|---|---|
| 0.5 kΩ | 500,000 mΩ |
| 1 kΩ | 1e+06 mΩ |
| 2 kΩ | 2e+06 mΩ |
| 3 kΩ | 3e+06 mΩ |
| 5 kΩ | 5e+06 mΩ |
| 10 kΩ | 1e+07 mΩ |
| 20 kΩ | 2e+07 mΩ |
| 25 kΩ | 2.5e+07 mΩ |
| 50 kΩ | 5e+07 mΩ |
| 75 kΩ | 7.5e+07 mΩ |
| 100 kΩ | 1e+08 mΩ |
| 250 kΩ | 2.5e+08 mΩ |
| 500 kΩ | 5e+08 mΩ |
| 1000 kΩ | 1e+09 mΩ |
| 5000 kΩ | 5e+09 mΩ |
Exact factor: 1 kilohm = 1,000,000 milliohms.
| Quantity | kΩ | mΩ |
|---|---|---|
| Typical LED series resistor | 0.22 kΩ | 2.2e+05 mΩ |
| Common pull-up resistor | 10 kΩ | 1e+07 mΩ |
| Multimeter input impedance | 1e+04 kΩ | 1e+10 mΩ |
| Copper wire, 1 m of 1.5 mm2 | 1.21e-05 kΩ | 12.1 mΩ |
| Human skin, dry | 100 kΩ | 1e+08 mΩ |
| Heating element, 2 kW at 230 V | 0.02645 kΩ | 2.645e+04 mΩ |
Published reference values, converted with the same factor this page uses.