Frequency Converter

Convert between different frequency units including hertz, kilohertz, megahertz, gigahertz, RPM, and radians per second.

Frequency Converter

Common Frequency Converter Formulas

  • 1 kilohertz = 1000 hertz
  • 1 megahertz = 1,000,000 hertz
  • 1 gigahertz = 1,000,000,000 hertz
  • 1 RPM = 1/60 hertz
  • 1 rad/s = 1/(2π) hertz

Common Frequency Converter References

  • Human Heartbeat: 1-2 Hz
  • Musical Note A4: 440 Hz
  • FM Radio Band: 88-108 MHz
  • WiFi Frequency: 2.4/5 GHz
  • CPU Clock Speed: 3-5 GHz

What is Frequency Conversion?

Frequency conversion involves converting measurements of repetition rate from one unit to another. Frequency describes how often something repeats per unit of time and is essential in electronics, music, physics, and engineering. From radio waves to CPU speeds to musical pitch, understanding frequency is crucial in our technological world.

Common Frequency Units Explained

Hertz (Hz)

The SI unit of frequency, equal to one cycle per second. Named after Heinrich Hertz. Human hearing ranges from about 20 Hz to 20,000 Hz.

Kilohertz (kHz)

Equal to 1,000 Hz. Used for radio frequencies, audio sampling rates, and some electronic signals.

Megahertz (MHz)

Equal to 1,000,000 Hz. Common for FM radio (88-108 MHz), computer memory speeds, and older processor speeds.

Gigahertz (GHz)

Equal to 1,000,000,000 Hz. Modern CPU speeds, WiFi frequencies (2.4 GHz, 5 GHz), and microwave frequencies.

RPM

Revolutions per minute. Common for engines, motors, and rotating machinery. To convert to Hz, divide by 60.

When to Use This Converter

Our frequency converter is essential for electronics engineers working with signals, musicians tuning instruments, computer technicians comparing specifications, automotive technicians reading engine RPM, and anyone working with periodic phenomena.

Frequently Asked Questions

How do I convert RPM to Hz?

Divide RPM by 60 to get Hz. For example, 3,600 RPM = 60 Hz (one rotation per second).

What frequency is middle C?

Middle C (C4) on a piano is approximately 261.63 Hz. The A above middle C (A4) is the standard tuning reference at 440 Hz.