Megahertz (MHz)

The megahertz is a million hertz. It is used for FM radio (88–108 MHz), TV and older computer clock speeds.

Convert megahertz to any frequency unit

1 megahertz = 1,000,000 hertz

Quick facts

Unit
Megahertz
Symbol
MHz
Measures
Frequency
System
Hertz
Equals
1,000,000 hertz
Definition
1,000,000 Hz.

1 megahertz in other units

Hertz1,000,000 Hz
Gigahertz0.001 GHz
Kilohertz1,000 kHz
Revolutions per minute60,000,000 rpm
Beats per minute60,000,000 bpm
Terahertz0.000001 THz
Cycles per second1,000,000 cps

What is a megahertz?

The megahertz is a million hertz. It is used for FM radio (88–108 MHz), TV and older computer clock speeds.

Where the megahertz sits among frequency units

The megahertz is number 18 of 24 on our scale of frequency units, ordered from smallest to largest.

Megahertz in real life

  • FM radio broadcasts at 88–108 MHz
  • The original IBM PC ran at 4.77 MHz
  • MRI scanners operate around 64–128 MHz

Top megahertz conversions

Common amounts of megahertz

Convert megahertz to all 23 other units

Hertz

Cycles & rotation

Per unit of time

Convert to megahertz

Frequently asked questions

What is a megahertz?

The megahertz is a million hertz. It is used for FM radio (88–108 MHz), TV and older computer clock speeds.

How is the megahertz defined?

1,000,000 Hz.

How many hertz are in a megahertz?

One megahertz equals 1,000,000 hertz.

How many gigahertz are in a megahertz?

One megahertz equals 0.001 gigahertz.

How many kilohertz are in a megahertz?

One megahertz equals 1,000 kilohertz.