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Frequency
Gigahertz to Hertz
Convert gigahertz (GHz) to hertz (Hz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 GHz = 1.0000e+9 Hz
Gigahertz to Hertz Conversion Table
Common values, ready to copy:
| gigahertz | hertz |
|---|---|
| 1 GHz | 1.0000e+9 Hz |
| 2 GHz | 2.0000e+9 Hz |
| 5 GHz | 5.0000e+9 Hz |
| 10 GHz | 1.0000e+10 Hz |
| 25 GHz | 2.5000e+10 Hz |
| 50 GHz | 5.0000e+10 Hz |
| 100 GHz | 1.0000e+11 Hz |
| 1,000 GHz | 1.0000e+12 Hz |
Formula
hertz = gigahertz × 1000000000
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
About Gigahertz and Hertz
Gigahertz (GHz): A billion hertz; the unit for modern CPU clock speeds and Wi-Fi/cellular frequencies. Common uses: Computer processor speeds (most CPUs are 2-5 GHz), Wi-Fi bands (2.4 and 5 GHz), 5G cellular, and microwave-band radio.
Hertz (Hz): Cycles per second; named for Heinrich Hertz, who experimentally demonstrated electromagnetic waves in 1887. Common uses: Audio (Hz range for human hearing is 20-20,000 Hz), AC power frequency (50 or 60 Hz), and the SI base unit for any periodic phenomenon.
How the conversion works
Frequency uses the SI hertz (Hz, cycles per second). 1 kHz = 1,000 Hz; 1 MHz = 1 million Hz; 1 GHz = 1 billion Hz. RPM and BPM are both "cycles per minute": 60 RPM = 1 Hz.
The exact relationship is hertz = gigahertz × 1000000000, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between gigahertz and hertz comes up wherever frequency measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.