Frequency Converter
Convert between hertz (Hz), kHz, MHz, and GHz. Simple decimal prefixes: 1 kHz = 1000 Hz. Used in radio, audio, and CPU specs.
Convert frequency
Enter value and click Convert.
How it works
We normalize to Hz (1 kHz = 1000 Hz, 1 MHz = 1e6 Hz, 1 GHz = 1e9 Hz) then format in all units.
When to use it
Use for radio frequency, CPU clock, or audio pitch (e.g. A4 = 440 Hz).
Frequently asked questions
- Period? Period T = 1/f. So 440 Hz has period 1/440 ≈ 2.27 ms.