Convert Gigabits to Terabytes (Gbit to TB)
1 gigabit (Gbit) = 0.000125 terabytes (TB). 1 TB = 8000 Gbit. Example: 15 Gbit = 15 × 0.000125 = 0.001875 TB.
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1 Gbit = 0.000125 TB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigabit to terabyte converter to paste a column from Excel.
How to Convert Gigabit to Terabyte
- 1 Gbit = 0.000125 TB
- 1 TB = 8000 Gbit
- Example: convert 15 Gbit to TB: 15 Gbit = 15 × 0.000125 TB = 0.001875 TB
Formula
TB = Gbit ÷ 8000
Derivation from SI units:
- 1 Gbit = 10⁹ bits.
- 1 TB = 10¹² bytes = 1000 GB.
- 1 Gbit = 1000000000 bit ÷ 8000000000000 bit per TB = 0.000125 TB
Both units are defined exactly, so the factor is exact. Gigabit definition: gigabit; Terabyte definition: terabyte.
Worked examples
- A reading of 16 Gbit converts to 0.002 TB.
16 Gbit × 0.000125 = 0.002 TB - A value of 128 Gbit is 0.016 TB.
128 Gbit × 0.000125 = 0.016 TB
Gigabit to Terabyte conversion table
| Gigabits (Gbit) | Terabytes (TB) |
|---|---|
| 1 Gbit | 0.000125 TB |
| 2 Gbit | 0.00025 TB |
| 4 Gbit | 0.0005 TB |
| 8 Gbit | 0.001 TB |
| 16 Gbit | 0.002 TB |
| 32 Gbit | 0.004 TB |
| 64 Gbit | 0.008 TB |
| 100 Gbit | 0.0125 TB |
| 128 Gbit | 0.016 TB |
| 256 Gbit | 0.032 TB |
| 500 Gbit | 0.0625 TB |
| 1000 Gbit | 0.125 TB |
Where it's used
Gigabits are used for DRAM and NAND flash chip densities, while terabytes appear in hard drives and SSDs. Both measure amount of digital information, so the conversion is a fixed factor.
Gigabit to other data storage units
| Conversion | 1 Gbit equals |
|---|---|
| gigabit to terabyte | 0.000125 TB |
| gigabit to byte | 125000000 B |
| gigabit to kilobyte | 125000 kB |
| gigabit to megabyte | 125 MB |
| gigabit to gigabyte | 0.125 GB |
| gigabit to bit | 1000000000 bit |
| gigabit to megabit | 1000 Mbit |
| gigabit to kibibyte | 122070.3125 KiB |
Show 5 more units
| gigabit to mebibyte | 119.2092896 MiB |
|---|---|
| gigabit to gibibyte | 0.1164153218 GiB |
| gigabit to kilobit | 1000000 kbit |
| gigabit to petabyte | 1.25 × 10⁻⁷ PB |
| gigabit to tebibyte | 0.0001136868377 TiB |
Frequently asked questions
How many terabytes are in 1 gigabit?
1 Gbit = 0.000125 TB.
How do I convert gigabits to terabytes?
Multiply the value in Gbit by 0.000125, or divide it by 8000. For example, 15 Gbit × 0.000125 = 0.001875 TB.
Is the Gbit to TB conversion exact?
Yes. Both units are defined exactly, and 1 Gbit is exactly 0.000125 TB.
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). Convert Gigabits to Terabytes (Gbit to TB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/gigabits-to-terabytes/
IEEE
Scientific Converters, "Convert Gigabits to Terabytes (Gbit to TB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/gigabits-to-terabytes/