Terahertz to Gigahertz Converter
Enter the frequency in terahertz below to convert it to gigahertz.
Convert Terahertz to Gigahertz
Enter a value in terahertz (THz) to convert to gigahertz (GHz).
Terahertz to Gigahertz Conversion Table
Table showing various terahertz measurements converted to gigahertz. Click any preset value or arrow to load it into the converter.
| Terahertz (THz) | Gigahertz (GHz) |
|---|---|
| 1 THz | 1,000 GHz |
| 2 THz | 2,000 GHz |
| 2.5 THz | 2,500 GHz |
| 5 THz | 5,000 GHz |
| 10 THz | 10,000 GHz |
| 15 THz | 15,000 GHz |
| 20 THz | 20,000 GHz |
| 25 THz | 25,000 GHz |
| 30 THz | 30,000 GHz |
| 50 THz | 50,000 GHz |
How to Convert Terahertz to Gigahertz
To convert terahertz to gigahertz, multiply the frequency by the following conversion ratio: 1,000 gigahertz/terahertz.
Since one terahertz is equal to 1,000 gigahertz, you can use this simple formula to convert:
The frequency in gigahertz is equal to the frequency in terahertz multiplied by 1,000.
For example, here's how to convert 5 terahertz to gigahertz using the formula above.
How Many Gigahertz Are in a Terahertz?
There are 1,000 gigahertz in a terahertz, which is why we use this value in the formula above.
Our terahertz to gigahertz calculator automatically converts your frequency measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Terahertz and gigahertz are both units used to measure frequency. Keep reading to learn more about each unit.
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. [1]
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.
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. [2]
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.
When converting frequency between terahertz (THz) and gigahertz (GHz), keep full floating-point precision (1 THz = 1,000 GHz; 1 GHz = 0.001 THz) during intermediate calculations and round only the final gigahertz figure to match your instrument tolerance.
More Terahertz & Gigahertz Conversions
Need to calculate in the opposite direction? Use our gigahertz to terahertz calculator to switch your starting unit immediately. You can also explore related tools such as converting gigahertz to terahertz, converting megahertz to gigahertz, or converting hertz to kilohertz.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Time & Frequency)·Frequency Metrology Standard — Terahertz (THz) to Gigahertz (GHz)
- [2]BIPM SpecificationBIPM (SI Base Unit: Second (s) & Hertz (Hz))·Unit Specifications: Terahertz (THz) & Gigahertz (GHz)
- [3]NIST CUU ReferenceNIST CUU (Derived SI Unit: Hertz (Hz))·Conversion Factors & Mathematical Basis (THz to GHz)