How Do You Convert Gigahertz to Terahertz?
Divide gigahertz by 1,000 to get terahertz. The formula is: THz = GHz / 1,000. Since tera is 1,000 times giga, this is a straightforward conversion. For example, 500 GHz = 0.5 THz and 2,000 GHz = 2 THz.
Maya Singh converts the frequency of her home Wi-Fi router for a physics assignment. The router operates at 5.8 GHz. Dividing: 5.8 / 1,000 = 0.0058 THz. She compares this to the 77 GHz (0.077 THz) automotive radar on her family car, noting that the radar frequency is 13 times higher than Wi-Fi, yet both are far below the terahertz band where security scanners operate.
GHz to THz Reference Table
| GHz | THz | Application |
|---|---|---|
| 2.4 GHz | 0.0024 THz | Wi-Fi, Bluetooth, microwave oven |
| 5 GHz | 0.005 THz | Wi-Fi 5 GHz band |
| 28 GHz | 0.028 THz | 5G mmWave |
| 60 GHz | 0.06 THz | WiGig (802.11ad) |
| 77 GHz | 0.077 THz | Automotive radar |
| 100 GHz | 0.1 THz | THz band boundary |
| 300 GHz | 0.3 THz | 6G research / body scanning |
| 1,000 GHz | 1 THz | Spectroscopy |
Practical Applications
5G to 6G Evolution
Priya Patel tracks wireless evolution for her telecom clients. 5G mmWave at 47 GHz = 0.047 THz. The jump to 6G at 300 GHz = 0.3 THz represents a 6.4x frequency increase. She explains that higher frequencies offer more bandwidth (faster data) but shorter range. Sam Okafor factors this into property valuations, noting that proximity to base stations becomes even more critical at THz frequencies.
Satellite Communications
Tom Brewer reads about next-generation satellite links. Current Ka-band satellites use 26.5-40 GHz (0.0265-0.04 THz). Future satellites may use the W-band at 75-110 GHz (0.075-0.11 THz), entering the terahertz region. The higher frequencies allow narrower beams and higher data throughput, but atmospheric absorption becomes a significant engineering challenge.
Medical Imaging Research
Coach Rivera reads an article about terahertz medical imaging. Researchers use 300 GHz (0.3 THz) to 3,000 GHz (3 THz) waves to image skin tissue non-invasively. These frequencies can distinguish between healthy and cancerous tissue based on water content differences. Maya Singh writes about this for a science fair project, calculating that a 1 THz medical scanner operates at a frequency 400 times higher than an automotive radar.