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GHz | to |
megahertz millihertz |

How many GHz in 1 MHz?
The answer is 0.001.

We assume you are converting between **gigahertz** and **megahertz**.

You can view more details on each measurement unit:

GHz or
MHz

The SI derived unit for **frequency** is the hertz.

1 hertz is equal to 1.0E-9 GHz, or 1.0E-6 MHz.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between gigahertz and megahertz.

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The SI prefix "giga" represents a factor of
10^{9}, or in exponential notation, 1E9.

So 1 gigahertz = 10^{9} .

The definition of a hertz is as follows:

The hertz (symbol Hz) is the SI unit of frequency. It is named in honour of the German physicist Heinrich Rudolf Hertz who made some important contributions to science in the field of electromagnetism.

The SI prefix "mega" represents a factor of
10^{6}, or in exponential notation, 1E6.

So 1 megahertz = 10^{6} .

The definition of a hertz is as follows:

The hertz (symbol Hz) is the SI unit of frequency. It is named in honour of the German physicist Heinrich Rudolf Hertz who made some important contributions to science in the field of electromagnetism.

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