Convert terabytes to gigabytes
Enter a value in terabytes (TB) to get gigabytes (GB). One terabyte is 1,000 gigabytes; one gigabyte is 0.001 terabytes.
How to use the Terabyte to gigabyte
- Type the number of terabytes.
- Click Convert.
- Read the result in gigabytes, plus the same value in every other digital storage unit.
TB to GB formula
gigabytes = terabytes × 1,000. To go the other way, terabytes = gigabytes × 0.001 (see gigabytes to terabytes).
Worked example
12 TB × 1,000 = 12,000 GB.
Terabytes to gigabytes conversion table
| Terabytes | Gigabytes |
|---|---|
| 0.1 TB | 100 GB |
| 0.5 TB | 500 GB |
| 1 TB | 1,000 GB |
| 2 TB | 2,000 GB |
| 3 TB | 3,000 GB |
| 5 TB | 5,000 GB |
| 10 TB | 10,000 GB |
| 20 TB | 20,000 GB |
| 25 TB | 25,000 GB |
| 50 TB | 50,000 GB |
| 100 TB | 100,000 GB |
| 250 TB | 250,000 GB |
| 500 TB | 500,000 GB |
| 1,000 TB | 1,000,000 GB |
About the terabyte
1,000 GB. Hard drives and cloud storage.
About the gigabyte
1,000 MB. Phone storage and mobile data plans.
Related conversions
Frequently asked questions
How many gigabytes in a terabyte?
1,000 gigabytes.
How many terabytes in a gigabyte?
0.001 terabytes.
Is the factor exact?
The factor 1,000 is derived from the units' exact definitions; only the display is rounded.
Privacy
This tool runs entirely inside your browser using WebAssembly and the Canvas/File APIs. Your files are never uploaded to ToolFlint or any third party; you can verify this in your browser's network tab or by switching to airplane mode after the page loads. Read how we process files.
Last updated 2026-09-23.