Terahertz (THz)
A terahertz is 10¹² Hz, between microwaves and infrared. Visible light spans about 400–750 THz and fibre-optic lasers near 1550 nm run at 193.4 THz.
Symbol: THz
Quantity: frequency and rotational speed
SI relation: 1 THz = 1000000000000 Hz (exact)
Derivation: 1 THz = 10¹² Hz.
Exact: yes, by definition
Typical uses
- Optical communications
- Terahertz imaging and spectroscopy
- Light frequencies
Convert terahertz to other units
| Conversion | 1 THz equals | Reverse |
|---|---|---|
| terahertz to hertz | 1000000000000 Hz | hertz to terahertz |
| terahertz to megahertz | 1000000 MHz | megahertz to terahertz |
| terahertz to gigahertz | 1000 GHz | gigahertz to terahertz |
| terahertz to revolution per minute | 60000000000000 rpm | revolution per minute to terahertz |
| terahertz to kilohertz | 1000000000 kHz | kilohertz to terahertz |
| terahertz to radian per second | 6283185307000 rad/s | radian per second to terahertz |
| terahertz to revolution per second | 1000000000000 rps | revolution per second to terahertz |
| terahertz to degree per second | 360000000000000 °/s | degree per second to terahertz |
| terahertz to beat per minute | 60000000000000 bpm | beat per minute to terahertz |
Open the Frequency & RPM Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Terahertz (THz). Retrieved October 25, 2026, from https://scientificconverters.com/units/terahertz/
IEEE
Scientific Converters, "Terahertz (THz)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/terahertz/