Convert kilohertz to hertz
Converting kilohertz to hertz is a common frequency task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 kHz equals 1,000 Hz, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert kilohertz to hertz
To convert kilohertz to hertz, multiply the number of kilohertz by 1,000. For example, 10 kHz × 1,000 = 10,000 Hz.
Hz = kHz × 1,000
- Write down the value in kilohertz you want to convert.
- Multiply it by 1,000 (the exact kHz→Hz factor).
- The result is your value in hertz. Check it below with the converter or the table.
Conversion table
Common values of kilohertz and their equivalents in hertz:
| kHz | Hz |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
About these units
Kilohertz (kHz). A kilohertz is 1,000 hertz. AM radio broadcasts sit around 500–1,700 kHz, human hearing spans roughly 20 Hz to 20 kHz, and audio sample rates are quoted in kHz.
Hertz (Hz). The hertz is the SI unit of frequency: one cycle per second. It is named after Heinrich Hertz and measures everything from mains electricity (50–60 Hz) to musical pitch.
Frequently asked questions
How do I convert kilohertz to hertz?
To convert kilohertz to hertz, multiply the number of kilohertz by 1,000. For example, 10 kHz × 1,000 = 10,000 Hz. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many hertz are in 1 kilohertz?
1 kHz = 1,000 Hz. That is the fixed relationship used by this converter and by international standards.
How many kilohertz are in 1 hertz?
1 Hz = 0.001 kHz. If you are converting in the opposite direction, use our Hertz to Kilohertz converter for the dedicated table and FAQ.
Is the kilohertz to hertz conversion exact?
Yes. Both units are defined by international agreement, so the factor of 1,000 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is kilohertz used for?
A kilohertz is 1,000 hertz. AM radio broadcasts sit around 500–1,700 kHz, human hearing spans roughly 20 Hz to 20 kHz, and audio sample rates are quoted in kHz.