Convert terabytes to gigabytes
Converting terabytes to gigabytes is a common data task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 TB equals 1,000 GB, the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert terabytes to gigabytes
To convert terabytes to gigabytes, multiply the number of terabytes by 1,000. For example, 10 TB × 1,000 = 10,000 GB.
GB = TB × 1,000
- Write down the value in terabytes you want to convert.
- Multiply it by 1,000 (the exact TB→GB factor).
- The result is your value in gigabytes. Check it below with the converter or the table.
Conversion table
Common values of terabytes and their equivalents in gigabytes:
| TB | GB |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
About these units
Terabyte (TB). A terabyte is 1,000 gigabytes, the capacity of modern hard drives and the scale of personal media libraries. About 250,000 photos fit in one terabyte.
Gigabyte (GB). A gigabyte is 1,000 megabytes, roughly an hour of HD video or 250 songs. Smartphone storage, RAM and data plans are specified in gigabytes.
Frequently asked questions
How do I convert terabytes to gigabytes?
To convert terabytes to gigabytes, multiply the number of terabytes by 1,000. For example, 10 TB × 1,000 = 10,000 GB. Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many gigabytes are in 1 terabyte?
1 TB = 1,000 GB. That is the fixed relationship used by this converter and by international standards.
How many terabytes are in 1 gigabyte?
1 GB = 0.001 TB. If you are converting in the opposite direction, use our Gigabyte to Terabyte converter for the dedicated table and FAQ.
Is the terabytes to gigabytes conversion exact?
Yes — this site uses decimal SI prefixes, so 1 KB = 1,000 bytes exactly. Note that some operating systems report file sizes in binary units (1 KiB = 1,024 bytes), which can make numbers differ slightly from storage labels.
What is terabyte used for?
A terabyte is 1,000 gigabytes, the capacity of modern hard drives and the scale of personal media libraries. About 250,000 photos fit in one terabyte.