Unit Converters
Frequency Converter
Convert between Hz, kHz, MHz, GHz, and RPM.
FreeNo sign-upWorks in your browser
Hertz (Hz)
1
Kilohertz (kHz)
0.001
Megahertz (MHz)
0.000001
Gigahertz (GHz)
0
RPM
60
About the Frequency Converter
Convert frequency units free — Hz to kHz, MHz to GHz, RPM to Hz, and back — with every unit shown at once (1 kHz = 1,000 Hz; 1 Hz = 60 RPM). Useful for audio work, radio frequencies, CPU clock speeds, and motor speeds, whether you're reading a spec sheet or doing signal math.
How to use the Frequency Converter
- 1Enter a value.
- 2Pick the unit to convert from.
- 3Read every other unit and copy.
Frequently asked questions
How many Hz in 1 kHz?
1 kHz = 1,000 Hz.
How does RPM relate to Hz?
1 Hz = 60 RPM (one cycle per second = 60 per minute).
What frequency is Wi-Fi?
Common Wi-Fi bands are 2.4 GHz and 5 GHz (plus 6 GHz for Wi-Fi 6E/7) — that's 2.4–6 billion cycles per second.