Converters
Frequency converter
Convert hertz, kilohertz, megahertz, gigahertz and revolutions per minute in an instant.
- Instant
- Free
- Private (processed locally)
- No sign-up
Convert frequencies in a blink
Enter a value in any field — Hz, kHz, MHz, GHz or RPM — and every other unit updates instantly. Ideal for electronics, radio, audio or mechanics.
Multiples of the hertz
- 1 kHz = 1,000 Hz
- 1 MHz = 1,000,000 Hz
- 1 GHz = 1,000,000,000 Hz
- 1 Hz = 60 RPM
Common references
| Source | Frequency |
|---|---|
| Mains (Europe) | 50 Hz |
| Note A (A4) | 440 Hz |
| FM radio | ~100 MHz |
| CPU | ~3 GHz |
100% local conversion, no sign-up and no data sent.
Frequently asked questions
What is 1 kHz in Hz?
1 kHz = 1,000 Hz. Likewise, 1 MHz = 1,000,000 Hz and 1 GHz = 1,000,000,000 Hz.
How do I convert RPM and Hz?
Revolutions per minute are divided by 60 to get revolutions per second (Hz): 60 RPM = 1 Hz, and 1 Hz = 60 RPM.
How precise is it?
Values are rounded to 6 significant figures to stay readable, which is more than enough in practice.
Do I need a connection?
No: all calculations run in your browser, with no data sent anywhere.