Gigahertz to Terahertz Converter
Enter the frequency in gigahertz below to convert it to terahertz.
Convert Gigahertz to Terahertz
Enter a value in gigahertz (GHz) to convert to terahertz (THz).
Gigahertz to Terahertz Conversion Table
Table showing various gigahertz measurements converted to terahertz. Click any preset value or arrow to load it into the converter.
How to Convert Gigahertz to Terahertz
To convert gigahertz to terahertz, multiply the frequency by the following conversion ratio: 0.001 terahertz/gigahertz.
Since one gigahertz is equal to 0.001 terahertz, you can use this simple formula to convert:
The frequency in terahertz is equal to the frequency in gigahertz multiplied by 0.001.
For example, here's how to convert 5 gigahertz to terahertz using the formula above.
How Many Terahertz Are in a Gigahertz?
There are 0.001 terahertz in a gigahertz, which is why we use this value in the formula above.
Our gigahertz to terahertz calculator automatically converts your frequency measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Gigahertz and terahertz are both units used to measure frequency. Keep reading to learn more about each unit.
What Is a Gigahertz?
A gigahertz is a unit of frequency equal to 1,000,000,000 hertz (Hz), the base unit for frequency. Equal to 1,000,000,000 Hz. [1]
The gigahertz is classified as a metric and SI-compatible unit of frequency. Gigahertz can be abbreviated as GHz; for example, 1 gigahertz can be written as 1 GHz.
In the metric system, "giga" is the standard SI prefix for billions, or 10⁹. This makes the gigahertz (GHz) a convenient decimal multiple of the hertz (Hz).
In practice, gigahertz (GHz) are widely used across large-scale industrial, bulk, and macro-level frequency specifications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Terahertz?
A terahertz is a unit of frequency equal to 1e+12 hertz (Hz), the base unit for frequency. Equal to 10¹² Hz. [2]
The terahertz is classified as an International System of Units (SI) unit of frequency. Terahertz can be abbreviated as THz; for example, 1 terahertz can be written as 1 THz.
In the metric system, "tera" is the standard SI prefix for trillions, or 10¹². This makes the terahertz (THz) a convenient decimal multiple of the hertz (Hz).
In practice, terahertz (THz) are widely used across large-scale industrial, bulk, and macro-level frequency specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting frequency between gigahertz (GHz) and terahertz (THz), keep full floating-point precision (1 GHz = 0.001 THz; 1 THz = 1,000 GHz) during intermediate calculations and round only the final terahertz figure to match your instrument tolerance.
More Gigahertz & Terahertz Conversions
Need to calculate in the opposite direction? Use our terahertz to gigahertz calculator to switch your starting unit immediately. You can also explore related tools such as converting terahertz to gigahertz, converting gigahertz to hertz, or converting gigahertz to megahertz.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Time & Frequency)·Frequency Metrology Standard — Gigahertz (GHz) to Terahertz (THz)
- [2]BIPM SpecificationBIPM (SI Base Unit: Second (s) & Hertz (Hz))·Unit Specifications: Gigahertz (GHz) & Terahertz (THz)
- [3]NIST CUU ReferenceNIST CUU (Derived SI Unit: Hertz (Hz))·Conversion Factors & Mathematical Basis (GHz to THz)