Direct conversion
Convert gigabyte [GB] to terabyte [TB] instantly with formula, examples, chart, and FAQs.
Quick answer
Use the calculator below for any custom value, then check the formula, examples, chart, and reverse conversion links.
1 gigabyte [GB] = 0.001 terabyte [TB]
1 gigabyte [GB] = 0.001 terabyte [TB]
Example: 1 gigabyte [GB] equals 0.001 terabyte [TB].
Data storage conversions use byte as the reference unit and include both decimal and binary multiples.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
The gigabyte is a digital storage unit commonly equal to one billion bytes in decimal usage.
HistoryGigabytes became mainstream with larger hard drives, memory cards, phones, and cloud storage.
Current useGigabytes are used for phone storage, laptops, video files, games, backups, and monthly data plans.
The terabyte (TB) is a data storage unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse terabyte when comparing data storage values, checking specifications, converting between systems, or preparing quick estimates.
| gigabyte [GB] | terabyte [TB] |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1000 | 1 |
Use this formula: 1 gigabyte [GB] = 0.001 terabyte [TB] Enter your value in the calculator and the result updates instantly.
1 gigabyte [GB] equals 0.001 terabyte [TB].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.