Kilohertz (kHz)

Definition

One thousand hertz (10³ Hz).

History

The kilohertz is one thousand hertz, a convenient multiple for sound and radio. It became familiar through AM radio tuning and audio sampling.

Where it is used

Kilohertz are used for audio sample rates and AM radio frequencies.

Typical uses include audio sample rates, radio.

Conversion pages

These pages convert kilohertz to or from another unit in frequency.

• Hertz to kilohertz

Other Frequency units

• Hertz (Hz)
• Megahertz (MHz)
• Gigahertz (GHz)
• Revolution per minute (rpm)

Sources

• BIPM SI BIPM SI Brochure (2019); ISO 80000-3 · Dataset reviewed Nov 11, 2026