Kilohertz (kHz)
One thousand hertz. AM radio stations broadcast in kHz.
What is a kilohertz?
- Symbol
- kHz
- Quantity
- Frequency & Wavelength
- Unit system
- SI
- Definition
- One thousand hertz. AM radio stations broadcast in kHz.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used for AM radio frequencies, audio sampling rates and ultrasound, and for switching frequencies in electronics.
Kilohertz in other frequency & wavelength units
- 1 kHz = 1000 HzHertz
- 1 kHz = 0.001 MHzKilohertz to Megahertz converter
- 1 kHz = 0.000001 GHzGigahertz
- 1 kHz = 1e-9 THzTerahertz
- 1 kHz = 299.792458 λ kmWavelength in kilometers
- 1 kHz = 299792.458 λ mWavelength in meters
- 1 kHz = 29979245.8 λ cmWavelength in centimeters
- 1 kHz = 299792458 λ mmWavelength in millimeters
- 1 kHz = 299792458000 λ µmWavelength in micrometers
- 1 kHz = 299792458000000 λ nmWavelength in nanometers
Kilohertz quick reference
| Kilohertz | Megahertz | Wavelength in meters | Hertz |
|---|---|---|---|
| 1 kHz | = 0.001 MHz | = 299792.458 λ m | = 1000 Hz |
| 10 kHz | = 0.01 MHz | = 29979.2458 λ m | = 10000 Hz |
| 100 kHz | = 0.1 MHz | = 2997.92458 λ m | = 100000 Hz |
| 1000 kHz | = 1 MHz | = 299.792458 λ m | = 1000000 Hz |
Where the kilohertz fits
The next smaller frequency & wavelength unit is the hertz (Hz). 1 kHz = 1000 Hz, and 1 Hz = 0.001 kHz.
The next larger frequency & wavelength unit is the kilometer of wavelength (λ km). 1 kHz = 299.792458 λ km, and 1 λ km = 299.792458 kHz.
Frequently asked questions
- How many megahertz are in one kilohertz?
- One kilohertz = 0.001 MHz (megahertz).
- How many meters of wavelength are in one kilohertz?
- One kilohertz = 299792.458 λ m (meters of wavelength).
- How many hertz are in one kilohertz?
- One kilohertz = 1000 Hz (hertz).