Frequency
HztokHz
Convert hertz (Hz) to kilohertz (kHz).
Factor1 Hz = 0.001 kHz
Converter
Hz
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kHz
Rendered to 6 significant figures.
Formula
Formula
kHz = Hz × 0.001
Multiply any value in hertz by 0.001 to obtain the value in kilohertz.
Worked example
Convert 1000 Hz to kHz.
- 01Start with 1000 Hz.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 kHz.
Result1000 Hz = 1 kHz
Conversion table
| Hz | kHz |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Hz to kHz?
1 Hz equals 0.001 kHz. To convert, multiply the value in hertz by 0.001.
How do I convert 1 Hz to kHz?
1 Hz = 0.001 kHz. For any value, multiply by 0.001.
How do I convert kHz back to Hz?
Divide by the same factor — or equivalently, multiply by 1000. So 1 kHz = 1000 Hz.
When would I need to convert hertz to kilohertz?
Frequency conversions between Hz and kHz are needed in signal and RF engineering, motor and turbomachinery rotational-speed work, vibration and pulse-rate analysis, and control-loop sample-rate specification. Hz dominates electronics and instrumentation; kHz, MHz and GHz cover audio through microwave; rpm and rps dominate mechanical rotational equipment; cycles per minute, second and hour cover slow industrial cyclic processes. Angular frequency (rad/s) and time-period (Hz ↔ seconds) conversions are NOT included — they require either a 2π factor or a reciprocal relationship.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).