Hertz to Kilohertz
1 Hz = 0.001 kHz
How to convert hertz to kilohertz
Enter the value in hertz (Hz) above and the equivalent in kilohertz (kHz) updates as you type. This conversion comes up when audio work: musical pitch and equipment specs (Hz, kHz).
- Concert pitch A above middle C: 440 Hz → that is 0.44 kHz in kilohertz.
- European mains power: 50 Hz, US: 60 Hz → that is 0.05 kHz in kilohertz.
Typical situations: radio: broadcast bands in kHz/MHz; electronics: mains frequency (50 Hz vs 60 Hz countries) and CPU clocks (GHz).
You can also convert in the other direction: Kilohertz to Hertz
Hertz to Kilohertz conversion table
| Hertz (Hz) | Kilohertz (kHz) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
Watch out for
- kHz vs MHz in radio: a factor of 1,000; FM is around 100 MHz, AM around 1 MHz
- Mains frequency does not affect voltage, which is why 50/60 Hz devices are often but not always interchangeable
Frequently asked questions
How many kilohertzes is 1 hertz?
1 hertz = 0.001 kilohertzes.
What is the formula to convert hertz to kilohertzes?
The formula is: kHz = Hz × 0.001.
What is 10 hertz in kilohertzes?
10 hertz = 0.01 kilohertzes.