How to convert gigahertz to megahertz
To convert gigahertz to megahertz, multiply by 1,000. Frequency conversions apply to radio, audio, processors, motors and electrical systems.
Gigahertz to Megahertz conversion table
| Gigahertz (GHz) | Megahertz (MHz) |
|---|---|
| 0.1 GHz | 100 MHz |
| 0.5 GHz | 500 MHz |
| 1 GHz | 1,000 MHz |
| 2 GHz | 2,000 MHz |
| 3 GHz | 3,000 MHz |
| 4 GHz | 4,000 MHz |
| 5 GHz | 5,000 MHz |
| 10 GHz | 10,000 MHz |
| 20 GHz | 20,000 MHz |
| 25 GHz | 25,000 MHz |
| 50 GHz | 50,000 MHz |
| 100 GHz | 100,000 MHz |
| 500 GHz | 500,000 MHz |
| 1,000 GHz | 1,000,000 MHz |
About the units
Gigahertz (GHz)
A gigahertz is one billion hertz, used for Wi-Fi bands and modern processors.
Megahertz (MHz)
A megahertz is one million hertz, used for FM radio and older CPUs.
How to use this converter
- Type the number of gigahertz (GHz) in the input box.
- The result in megahertz appears instantly — no button needed.
- See the same value in every other frequency unit just below.
- Use “Swap units” to convert megahertz back to gigahertz.
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 megahertz are in one gigahertz?
One gigahertz equals 1,000 megahertz. 1,000 is the exact factor used by this converter.
How do I convert gigahertz to megahertz?
Multiply the value in gigahertz by 1,000. To go the other way, multiply megahertz by 0.001.
What is 10 GHz in MHz?
10 GHz = 10,000 MHz. Also, 5 GHz = 5,000 MHz and 100 GHz = 100,000 MHz.
What is the difference between a gigahertz and a megahertz?
A gigahertz is one billion hertz, used for Wi-Fi bands and modern processors. A megahertz is one million hertz, used for FM radio and older CPUs.
Is this tool free and private?
Yes — the Gigahertz to Megahertz 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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