Frequency Converter
Convert between frequency units instantly: Hertz, kilohertz, megahertz, gigahertz, terahertz, RPM, and radians per second. Free, 100% in your browser.
Reference
How does frequency conversion work?
Frequency measures how often something repeats per unit of time. This tool converts through Hertz (Hz) as the base unit, where 1 Hz = 1 cycle per second. The SI prefixes scale by powers of 10: 1 kHz = 1,000 Hz, 1 MHz = 1,000,000 Hz, 1 GHz = 10⁹ Hz, 1 THz = 10¹² Hz. RPM measures rotational frequency (1 rpm = 1/60 Hz), and radians per second is the angular frequency (1 rad/s = 1/(2π) Hz).
Unit reference
Hertz (Hz) — the SI unit of frequency, one cycle per second. Kilohertz (kHz) — 1,000 Hz. Used for audio frequencies and AM radio. Megahertz (MHz) — 1,000,000 Hz. Used for FM radio and processor clock speeds. Gigahertz (GHz) — 10⁹ Hz. Used for modern CPUs and wireless networks. Terahertz (THz) — 10¹² Hz. Used in spectroscopy and imaging. RPM — revolutions per minute, common for motors and engines. Radians per second — angular frequency used in physics and engineering.
Common use cases
Electronics — convert between Hz, kHz, and MHz for circuit design. Computing — compare processor clock speeds in GHz. Audio engineering — work with sound frequencies in Hz and kHz. Mechanical engineering — convert RPM to Hz for motor specifications. Physics — convert between angular frequency (rad/s) and regular frequency (Hz).
Privacy
All calculations run 100% in your browser. No data is sent to any server.