Home› Conversions› Frequency› Hertz to Gigahertz
Frequency
Hertz to Gigahertz
Convert hertz (Hz) to gigahertz (GHz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 Hz = 1.0000e-9 GHz
Hertz to Gigahertz Conversion Table
Common values, ready to copy:
| hertz | gigahertz |
|---|---|
| 1 Hz | 1.0000e-9 GHz |
| 2 Hz | 2.0000e-9 GHz |
| 5 Hz | 5.0000e-9 GHz |
| 10 Hz | 1.0000e-8 GHz |
| 25 Hz | 2.5000e-8 GHz |
| 50 Hz | 5.0000e-8 GHz |
| 100 Hz | 1.0000e-7 GHz |
| 1,000 Hz | 1.0000e-6 GHz |
Formula
gigahertz = hertz × 1e-9
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 Hertz and Gigahertz
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.
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.
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 gigahertz = hertz × 1e-9, 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 hertz and gigahertz 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.