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Frequency
Terahertz to Gigahertz
Convert terahertz (THz) to gigahertz (GHz). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 THz = 1000 GHz
Terahertz to Gigahertz Conversion Table
Common values, ready to copy:
| terahertz | gigahertz |
|---|---|
| 1 THz | 1000 GHz |
| 2 THz | 2000 GHz |
| 5 THz | 5000 GHz |
| 10 THz | 10000 GHz |
| 25 THz | 25000 GHz |
| 50 THz | 50000 GHz |
| 100 THz | 100000 GHz |
| 1,000 THz | 1.0000e+6 GHz |
Formula
gigahertz = terahertz × 1000
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 Terahertz and Gigahertz
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.
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 = terahertz × 1000, 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 terahertz 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.