Direct conversion
Convert terabyte [TB] to gigabyte [GB] 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 terabyte [TB] = 1000 gigabyte [GB]
1 terabyte [TB] = 1000 gigabyte [GB]
Example: 1 terabyte [TB] equals 1000 gigabyte [GB].
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 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.
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.
| terabyte [TB] | gigabyte [GB] |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
Use this formula: 1 terabyte [TB] = 1000 gigabyte [GB] Enter your value in the calculator and the result updates instantly.
1 terabyte [TB] equals 1000 gigabyte [GB].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.