Frequency Converter
Hertz (Hz)
Definition: The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI). It is defined as one cycle or event per second.
History/origin: The unit is named after the German physicist Heinrich Hertz, who made important scientific contributions to the study of electromagnetism in the late 19th century.
Current use: Hertz is the fundamental unit used to measure the frequency of sound waves, electrical currents (like the 50/60 Hz AC power in your home), and all electromagnetic radiation.
Kilohertz (kHz)
Definition: A kilohertz (symbol: kHz) is a multiple of the hertz, equaling 1,000 cycles per second.
History/origin: As early radio technology developed in the early 20th century, scientists needed a larger unit to describe the higher frequencies used for AM (Amplitude Modulation) broadcasting.
Current use: Kilohertz are commonly used to measure AM radio broadcasts, audio sample rates (like CDs at 44.1 kHz), and the frequency of ultrasound devices.
Hertz (Hz) to Kilohertz (kHz) Conversion Table
| Hertz (Hz) [hz] | Kilohertz (kHz) [khz] |
|---|---|
| 0.01 hz | 0.00001 khz |
| 0.1 hz | 0.0001 khz |
| 1 hz | 0.001 khz |
| 2 hz | 0.002 khz |
| 3 hz | 0.003 khz |
| 5 hz | 0.005 khz |
| 10 hz | 0.01 khz |
| 20 hz | 0.02 khz |
| 50 hz | 0.05 khz |
| 100 hz | 0.1 khz |
| 1000 hz | 1 khz |
How to Convert Hertz (Hz) to Kilohertz (kHz)
1 hz = 0.001 khz
1 khz = 1000 hz
Example: convert 15 hz to khz:
15 hz = 15 × 0.001 khz = 0.015 khz
Did You Know?
- Did you know? A healthy young human ear can hear sound frequencies ranging from 20 Hertz (very low bass) up to 20,000 Hertz (very high pitch).
- AM radio stations broadcast their signals in Kilohertz (kHz). For example, a station at "790 on the AM dial" is broadcasting at exactly 790 kHz.