Terabits (Tbit) to Gigabytes (GB) Conversion
Terabits
The terabit (Tbit) is a unit of digital information equal to 1,000,000,000,000 bits (10¹² bits). It is used to express the capacity of high-speed backbone network links and submarine cables: major undersea cables connecting continents operate at capacities measured in terabits per second (Tbps). One terabit per second equals 125 gigabytes per second — the scale of internet exchange points and national backbone infrastructure.
Gigabytes
The gigabyte (GB) is a unit of digital information equal to 1,000,000,000 bytes (10⁹ bytes) in SI decimal, or 1,073,741,824 bytes in binary convention. It is the dominant unit for consumer storage — smartphone internal storage, USB drives, and SD cards are sold in gigabytes. One hour of standard HD streaming consumes approximately 3 GB; one hour of 4K video requires 7–15 GB depending on encoding. Monthly mobile data plans are universally priced per gigabyte.
| Terabits (Tbit) | Gigabytes (GB) |
|---|---|
| 0.1 Tbit | 12.5 GB |
| 1 Tbit | 125 GB |
| 2 Tbit | 250 GB |
| 3 Tbit | 375 GB |
| 5 Tbit | 625 GB |
| 10 Tbit | 1250 GB |
| 20 Tbit | 2500 GB |
| 30 Tbit | 3750 GB |
| 50 Tbit | 6250 GB |
| 100 Tbit | 12500 GB |
| 1000 Tbit | 125000 GB |