What this converter does
This tool converts a frequency value between common units: hertz (Hz), kilohertz (kHz), megahertz (MHz), gigahertz (GHz), and revolutions per minute (RPM).
The conversions used
All conversions pass through hertz as the base unit: 1 kHz = 1,000 Hz, 1 MHz = 1,000,000 Hz, 1 GHz = 1,000,000,000 Hz, and 1 RPM = 1/60 Hz (since one revolution per minute equals one cycle every 60 seconds). Enter your value and starting unit to see it converted to all the others.
These are exact, standard SI-based unit conversions suitable for electronics, physics, and mechanical engineering use.
Last reviewed August 2026