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Convert gigahertz to hertz
Instant, accurate GHz → Hz conversion with a live converter, table and formula.
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1 gigahertz = 1000000000 hertz
1 hertz = 1e-9 gigahertz
gigahertz to hertz table
| gigahertz (GHz) | hertz (Hz) |
|---|---|
| 0.5 | 500000000 |
| 1 | 1000000000 |
| 2 | 2000000000 |
| 5 | 5000000000 |
| 10 | 10000000000 |
| 20 | 20000000000 |
| 50 | 50000000000 |
| 100 | 100000000000 |
| 500 | 500000000000 |
| 1000 | 1000000000000 |
Formula
hertz = gigahertz × 1000000000.
Example
10 gigahertz = 10000000000 hertz.
What is a gigahertz?
A gigahertz (GHz) is 1,000,000,000 Hz — CPU clock speeds.
What is a hertz?
The hertz (Hz) is one cycle per second, the SI unit of frequency.
Real-world reference points
Mains power hums at 50/60 Hz; concert pitch A is 440 Hz; CPUs run in the GHz range.
| Reference | gigahertz | hertz |
|---|---|---|
| Mains electricity (50 Hz regions) | 0 GHz | 50 Hz |
| Concert pitch A4 | 0 GHz | 440 Hz |
| FM radio (~100 MHz) | 0.1 GHz | 100,000,000 Hz |
| Modern CPU (3.5 GHz) | 3.5 GHz | 3,500,000,000 Hz |
Mistakes to avoid with frequency conversions
- Confusing MHz with Mbps — clock frequency and data throughput are different things.
- Assuming higher GHz always means faster: per-clock work and core counts matter as much.
- Mixing 50 Hz and 60 Hz appliance ratings across regions — motors and clocks care.
Frequently asked questions
How many hertz in a gigahertz?+
1 gigahertz = 1000000000 hertz.
How do I convert gigahertz to hertz?+
Enter the value in the gigahertz box above and the hertz value appears instantly. You can also type in the hertz box to convert the other way.
Is this GHz to Hz converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.