Convert hertz to gigahertz
Converting hertz to gigahertz is a common frequency task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 Hz equals 0.000000001 GHz, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert hertz to gigahertz
To convert hertz to gigahertz, multiply the number of hertz by 0.000000001. For example, 10 Hz × 0.000000001 = 0.00000001 GHz.
GHz = Hz × 0.000000001
- Write down the value in hertz you want to convert.
- Multiply it by 0.000000001 (the exact Hz→GHz factor).
- The result is your value in gigahertz. Check it below with the converter or the table.
Conversion table
Common values of hertz and their equivalents in gigahertz:
| Hz | GHz |
|---|---|
| 1 | 0.000000001 |
| 2 | 0.000000002 |
| 3 | 0.000000003 |
| 4 | 0.000000004 |
| 5 | 0.000000005 |
| 10 | 0.00000001 |
| 20 | 0.00000002 |
| 25 | 0.000000025 |
| 50 | 0.00000005 |
| 100 | 0.0000001 |
| 250 | 0.00000025 |
| 500 | 0.0000005 |
About these units
Hertz (Hz). The hertz is the SI unit of frequency: one cycle per second. It is named after Heinrich Hertz and measures everything from mains electricity (50–60 Hz) to musical pitch.
Gigahertz (GHz). A gigahertz is one billion cycles per second. Modern processors clock at several GHz, and Wi-Fi, 5G and radar systems operate in the gigahertz range.
Frequently asked questions
How do I convert hertz to gigahertz?
To convert hertz to gigahertz, multiply the number of hertz by 0.000000001. For example, 10 Hz × 0.000000001 = 0.00000001 GHz. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many gigahertz are in 1 hertz?
1 Hz = 0.000000001 GHz. That is the fixed relationship used by this converter and by international standards.
How many hertz are in 1 gigahertz?
1 GHz = 1,000,000,000 Hz. If you are converting in the opposite direction, use our Gigahertz to Hertz converter for the dedicated table and FAQ.
Is the hertz to gigahertz conversion exact?
Yes. Both units are defined by international agreement, so the factor of 0.000000001 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is hertz used for?
The hertz is the SI unit of frequency: one cycle per second. It is named after Heinrich Hertz and measures everything from mains electricity (50–60 Hz) to musical pitch.