How to convert megahertz to gigahertz
To convert megahertz to gigahertz, multiply by 0.001. Frequency conversions apply to radio, audio, processors, motors and electrical systems.
Megahertz to Gigahertz conversion table
| Megahertz (MHz) | Gigahertz (GHz) |
|---|---|
| 0.1 MHz | 0.0001 GHz |
| 0.5 MHz | 0.0005 GHz |
| 1 MHz | 0.001 GHz |
| 2 MHz | 0.002 GHz |
| 3 MHz | 0.003 GHz |
| 4 MHz | 0.004 GHz |
| 5 MHz | 0.005 GHz |
| 10 MHz | 0.01 GHz |
| 20 MHz | 0.02 GHz |
| 25 MHz | 0.025 GHz |
| 50 MHz | 0.05 GHz |
| 100 MHz | 0.1 GHz |
| 500 MHz | 0.5 GHz |
| 1,000 MHz | 1 GHz |
About the units
Megahertz (MHz)
A megahertz is one million hertz, used for FM radio and older CPUs.
Gigahertz (GHz)
A gigahertz is one billion hertz, used for Wi-Fi bands and modern processors.
How to use this converter
- Type the number of megahertz (MHz) in the input box.
- The result in gigahertz appears instantly — no button needed.
- See the same value in every other frequency unit just below.
- Use “Swap units” to convert gigahertz back to megahertz.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many gigahertz are in one megahertz?
One megahertz equals 0.001 gigahertz. 0.001 is the exact factor used by this converter.
How do I convert megahertz to gigahertz?
Multiply the value in megahertz by 0.001. To go the other way, multiply gigahertz by 1,000.
What is 10 MHz in GHz?
10 MHz = 0.01 GHz. Also, 5 MHz = 0.005 GHz and 100 MHz = 0.1 GHz.
What is the difference between a megahertz and a gigahertz?
A megahertz is one million hertz, used for FM radio and older CPUs. A gigahertz is one billion hertz, used for Wi-Fi bands and modern processors.
Is this tool free and private?
Yes — the Megahertz to Gigahertz is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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