Frequency Unit Converter


Enter a value and select a starting unit to see all available conversion results.

Frequency Units and Descriptions

Below are descriptions and historical context for each Frequency unit available in this converter.

Millihertz (mHz)

One millihertz, used for very slow oscillations like geological or astronomical phenomena.

Hertz (Hz)

Named after Heinrich Hertz. The SI unit of frequency, defined as one cycle per second.

Kilohertz (kHz)

One thousand hertz, commonly used for audio frequencies and radio communications.

Megahertz (MHz)

One million hertz, used for FM radio, TV broadcasts, and computer processors.

Gigahertz (GHz)

One billion hertz, used for microwave communications, WiFi, and modern CPU speeds.

Terahertz (THz)

One trillion hertz, used for infrared radiation and advanced optical communications.

Revolutions per Minute (rpm)

Revolutions per minute, commonly used for engine speeds and rotating machinery.

Revolutions per Second (rps)

Revolutions per second, used in high-speed machinery and scientific applications.

Angular Frequency (rad/s)

Angular frequency (ω), also known as radial or circular frequency, measures angular displacement per unit time. Its units are therefore radians (or degrees) per second.

Wavelength (m)

Wavelength is the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave. This calculator assumes the wave is traveling at the speed of light.

Base Unit Conversion Factors

The table below shows the conversion factors from each unit to the base unit, which is the Hertz (Hz).

  • 1 Hertz (Hz) = 1000 Millihertz (mHz)
  • 1 Hertz (Hz) = 1 Hertz (Hz)
  • 1 Hertz (Hz) = 0.001 Kilohertz (kHz)
  • 1 Hertz (Hz) = 1.0E-6 Megahertz (MHz)
  • 1 Hertz (Hz) = 1.0E-9 Gigahertz (GHz)
  • 1 Hertz (Hz) = 1.0E-12 Terahertz (THz)
  • 1 Hertz (Hz) = 59.99999988 Revolutions per Minute (rpm)
  • 1 Hertz (Hz) = 1 Revolutions per Second (rps)
  • 1 Hertz (Hz) = 6.2831853072544 Angular Frequency (rad/s)
  • 1 Hertz (Hz) = 299792453.68431 Wavelength (m)