How to convert gigahertz to hertz
To convert gigahertz to hertz, multiply by 1,000,000,000. Frequency conversions apply to radio, audio, processors, motors and electrical systems.
Gigahertz to Hertz conversion table
| Gigahertz (GHz) | Hertz (Hz) |
|---|---|
| 0.1 GHz | 100,000,000 Hz |
| 0.5 GHz | 500,000,000 Hz |
| 1 GHz | 1,000,000,000 Hz |
| 2 GHz | 2,000,000,000 Hz |
| 3 GHz | 3,000,000,000 Hz |
| 4 GHz | 4,000,000,000 Hz |
| 5 GHz | 5,000,000,000 Hz |
| 10 GHz | 10,000,000,000 Hz |
| 20 GHz | 20,000,000,000 Hz |
| 25 GHz | 25,000,000,000 Hz |
| 50 GHz | 50,000,000,000 Hz |
| 100 GHz | 100,000,000,000 Hz |
| 500 GHz | 500,000,000,000 Hz |
| 1,000 GHz | 1,000,000,000,000 Hz |
About the units
Gigahertz (GHz)
A gigahertz is one billion hertz, used for Wi-Fi bands and modern processors.
Hertz (Hz)
One hertz is one cycle per second.
How to use this converter
- Type the number of gigahertz (GHz) in the input box.
- The result in hertz appears instantly — no button needed.
- See the same value in every other frequency unit just below.
- Use “Swap units” to convert hertz 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 hertz are in one gigahertz?
One gigahertz equals 1,000,000,000 hertz. 1,000,000,000 is the exact factor used by this converter.
How do I convert gigahertz to hertz?
Multiply the value in gigahertz by 1,000,000,000. To go the other way, multiply hertz by 1e-9.
What is 10 GHz in Hz?
10 GHz = 10,000,000,000 Hz. Also, 5 GHz = 5,000,000,000 Hz and 100 GHz = 100,000,000,000 Hz.
What is the difference between a gigahertz and a hertz?
A gigahertz is one billion hertz, used for Wi-Fi bands and modern processors. One hertz is one cycle per second.
Is this tool free and private?
Yes — the Gigahertz to Hertz 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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