Popular conversions
2 pairsHertz ↔ Kilohertz
Hz ↔ kHz
Megahertz ↔ Gigahertz
MHz ↔ GHz
Unit guides
4 unitsDetailed guide to this category
Frequency measures how many times an event repeats per second.
Hertz is the SI unit, and its multiples (kHz, MHz, GHz) are standard across electronics, radio and computing.
- Physical quantity
- Frequency
- SI unit
- Hertz
- SI symbol
- Hz
- Typical use
- Electronics, radio and computing
What is frequency?
Frequency is the number of occurrences of a repeating event per unit of time, named after physicist Heinrich Hertz.
It is used for sound waves, electrical current frequency, processor speed and radio waves.
Units
| Unit | Symbol | Information |
|---|---|---|
| Hertz | Hz | View unit guide |
| Kilohertz | kHz | View unit guide |
| Megahertz | MHz | View unit guide |
| Gigahertz | GHz | View unit guide |
Sources
The definitions and conversion relationships on this page are aligned with standard metrology and SI reference material.