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Frequency
Gigahertz to Terahertz
Convert gigahertz (GHz) to terahertz (THz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 GHz = 0.001 THz
Gigahertz to Terahertz Conversion Table
Common values, ready to copy:
| gigahertz | terahertz |
|---|---|
| 1 GHz | 0.001 THz |
| 2 GHz | 0.002 THz |
| 5 GHz | 0.005 THz |
| 10 GHz | 0.01 THz |
| 25 GHz | 0.025 THz |
| 50 GHz | 0.05 THz |
| 100 GHz | 0.1 THz |
| 1,000 GHz | 1 THz |
Formula
terahertz = gigahertz × 0.001
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 Terahertz
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.
Terahertz (THz): A trillion hertz; the unit for far-infrared light and emerging high-bandwidth applications. Common uses: Far-infrared imaging, some emerging 6G research, and the frequency range just below visible light.
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 terahertz = gigahertz × 0.001, 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 terahertz 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.