Home› Conversions› Frequency› Kilohertz to Hertz
Frequency
Kilohertz to Hertz
Convert kilohertz (kHz) to hertz (Hz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 kHz = 1000 Hz
Kilohertz to Hertz Conversion Table
Common values, ready to copy:
| kilohertz | hertz |
|---|---|
| 1 kHz | 1000 Hz |
| 2 kHz | 2000 Hz |
| 5 kHz | 5000 Hz |
| 10 kHz | 10000 Hz |
| 25 kHz | 25000 Hz |
| 50 kHz | 50000 Hz |
| 100 kHz | 100000 Hz |
| 1,000 kHz | 1.0000e+6 Hz |
Formula
hertz = kilohertz × 1000
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
About Kilohertz and Hertz
Kilohertz (kHz): A thousand hertz; the unit for AM radio frequencies and low-frequency audio. Common uses: AM radio (530-1700 kHz), keyboard scan rates, and the upper end of human audible frequencies.
Hertz (Hz): Cycles per second; named for Heinrich Hertz, who experimentally demonstrated electromagnetic waves in 1887. Common uses: Audio (Hz range for human hearing is 20-20,000 Hz), AC power frequency (50 or 60 Hz), and the SI base unit for any periodic phenomenon.
How the conversion works
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
The exact relationship is hertz = kilohertz × 1000, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between kilohertz and hertz comes up wherever frequency measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.