Convert Kilohertz to Hertz (kHz to Hz)
1 kilohertz (kHz) = 1000 hertz (Hz). 1 Hz = 0.001 kHz. Example: 44.1 kHz = 44.1 × 1000 = 44100 Hz.
Also searched as kilohertz to Hz, kilohertz in Hz, kilohertz into hertz, kHz to Hz, kHz in hertz, kHz into hertz, kilohertz to hertz, kHz to hertz converter and how many hertz in a kilohertz.
1 kHz = 1000 Hz
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilohertz to hertz converter to paste a column from Excel.
How to Convert Kilohertz to Hertz
- 1 kHz = 1000 Hz
- 1 Hz = 0.001 kHz
- Example: convert 44.1 kHz to Hz: 44.1 kHz = 44.1 × 1000 Hz = 44100 Hz
Formula
Hz = kHz × 1000
Derivation from SI units:
- 1 kHz = 10³ Hz.
- 1 Hz = 1 s⁻¹, one cycle per second.
Both units are defined exactly, so the factor is exact. Kilohertz definition: kilohertz; Hertz definition: hertz.
Worked examples
- A 44.1 kHz sample rate is 44100 Hz.
44.1 kHz × 1000 = 44100 Hz - The 20 kHz upper limit of hearing is 20000 Hz.
20 kHz × 1000 = 20000 Hz
Kilohertz to Hertz conversion table
| Kilohertz (kHz) | Hertz (Hz) |
|---|---|
| 1 kHz | 1000 Hz |
| 4 kHz | 4000 Hz |
| 8 kHz | 8000 Hz |
| 16 kHz | 16000 Hz |
| 20 kHz | 20000 Hz |
| 44.1 kHz | 44100 Hz |
| 48 kHz | 48000 Hz |
| 100 kHz | 100000 Hz |
| 531 kHz | 531000 Hz |
| 1600 kHz | 1600000 Hz |
Where it's used
Audio, ultrasonic and switching frequencies in kilohertz are converted to hertz for filter design and calculations. Multiply by 1000.
Kilohertz to other frequency units
| Conversion | 1 kHz equals |
|---|---|
| kilohertz to hertz | 1000 Hz |
| kilohertz to megahertz | 0.001 MHz |
| kilohertz to gigahertz | 0.000001 GHz |
| kilohertz to revolution per minute | 60000 rpm |
| kilohertz to radian per second | 6283.185307 rad/s |
| kilohertz to revolution per second | 1000 rps |
| kilohertz to degree per second | 360000 °/s |
| kilohertz to beat per minute | 60000 bpm |
Show 1 more units
| kilohertz to terahertz | 1 × 10⁻⁹ THz |
|---|
Frequently asked questions
How many Hz is 1 kHz?
Exactly 1000 Hz.
How many hertz are in 1 kilohertz?
1 kHz = 1000 Hz.
How do I convert kilohertz to hertz?
Multiply the value in kHz by 1000. For example, 44.1 kHz × 1000 = 44100 Hz.
Is the kHz to Hz conversion exact?
Yes. Both units are defined exactly, and 1 kHz is exactly 1000 Hz.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilohertz to Hertz (kHz to Hz). Retrieved October 25, 2026, from https://scientificconverters.com/frequency/kilohertz-to-hertz/
IEEE
Scientific Converters, "Convert Kilohertz to Hertz (kHz to Hz)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/frequency/kilohertz-to-hertz/