Convert Gigahertz to Hertz (GHz to Hz)
1 gigahertz (GHz) = 1000000000 hertz (Hz). 1 Hz = 1 × 10⁻⁹ GHz. Example: 15 GHz = 15 × 1000000000 = 15000000000 Hz.
Also searched as gigahertz to Hz, gigahertz in Hz, gigahertz into hertz, GHz to Hz, GHz in hertz, GHz into hertz, gigahertz to hertz, GHz to hertz converter and how many hertz in a gigahertz.
1 GHz = 1000000000 Hz
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigahertz to hertz converter to paste a column from Excel.
How to Convert Gigahertz to Hertz
- 1 GHz = 1000000000 Hz
- 1 Hz = 1 × 10⁻⁹ GHz
- Example: convert 15 GHz to Hz: 15 GHz = 15 × 1000000000 Hz = 15000000000 Hz
Formula
Hz = GHz × 1000000000
Derivation from SI units:
- 1 GHz = 10⁹ Hz.
- 1 Hz = 1 s⁻¹, one cycle per second.
Both units are defined exactly, so the factor is exact. Gigahertz definition: gigahertz; Hertz definition: hertz.
Worked examples
- A reading of 3.5 GHz converts to 3500000000 Hz.
3.5 GHz × 1000000000 = 3500000000 Hz - A value of 5.8 GHz is 5800000000 Hz.
5.8 GHz × 1000000000 = 5800000000 Hz
Gigahertz to Hertz conversion table
| Gigahertz (GHz) | Hertz (Hz) |
|---|---|
| 1 GHz | 1000000000 Hz |
| 2.4 GHz | 2400000000 Hz |
| 3 GHz | 3000000000 Hz |
| 3.5 GHz | 3500000000 Hz |
| 4 GHz | 4000000000 Hz |
| 5 GHz | 5000000000 Hz |
| 5.8 GHz | 5800000000 Hz |
| 6 GHz | 6000000000 Hz |
| 28 GHz | 28000000000 Hz |
| 60 GHz | 60000000000 Hz |
Where it's used
Gigahertz are used for CPU and GPU clock speeds, while hertz appear in mains power (50/60 Hz). Both measure frequency and rotational speed, so the conversion is a fixed factor.
Gigahertz to other frequency units
| Conversion | 1 GHz equals |
|---|---|
| gigahertz to hertz | 1000000000 Hz |
| gigahertz to megahertz | 1000 MHz |
| gigahertz to revolution per minute | 60000000000 rpm |
| gigahertz to kilohertz | 1000000 kHz |
| gigahertz to radian per second | 6283185307 rad/s |
| gigahertz to revolution per second | 1000000000 rps |
| gigahertz to degree per second | 360000000000 °/s |
| gigahertz to beat per minute | 60000000000 bpm |
Show 1 more units
| gigahertz to terahertz | 0.001 THz |
|---|
Frequently asked questions
How many hertz are in 1 gigahertz?
1 GHz = 1000000000 Hz.
How do I convert gigahertz to hertz?
Multiply the value in GHz by 1000000000. For example, 15 GHz × 1000000000 = 15000000000 Hz.
Is the GHz to Hz conversion exact?
Yes. Both units are defined exactly, and 1 GHz is exactly 1000000000 Hz.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Gigahertz to Hertz (GHz to Hz). Retrieved October 25, 2026, from https://scientificconverters.com/frequency/gigahertz-to-hertz/
IEEE
Scientific Converters, "Convert Gigahertz to Hertz (GHz to Hz)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/frequency/gigahertz-to-hertz/