Terabytes to Gigabytes
Convert terabytes (TB) to gigabytes (GB) instantly — with formula and reference table.
Quick answer: 1 TB = 1024 GB. To convert terabytes to gigabytes, multiply by TB × 1024.
Converting terabytes to gigabytes
This converter changes a value in terabytes (TB) into gigabytes (GB). One terabyte equals 1024 GB. In the binary convention used by operating systems, 1 TB = 1024 GB. Storage labels sometimes use the decimal convention where 1 TB = 1000 GB. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
GB = TB × 1024
Example
Convert 10 TB to GB: 10 × 1024 = 10240 GB.
Terabytes to Gigabytes conversion table
| Terabytes (TB) | Gigabytes (GB) |
|---|---|
| 1 TB | 1024 GB |
| 2 TB | 2048 GB |
| 3 TB | 3072 GB |
| 5 TB | 5120 GB |
| 10 TB | 10240 GB |
| 20 TB | 20480 GB |
| 25 TB | 25600 GB |
| 50 TB | 51200 GB |
| 100 TB | 102400 GB |
How to use this converter
- Enter a value in the terabytes (TB) field.
- Read the converted value in gigabytes (GB) below.
- Type into the GB field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many GB are in a TB?
1 TB equals 1024 GB in the binary convention, or 1000 GB on some storage labels.
How do I convert 2 TB to GB?
2 times 1024 = 2048 GB (binary).
Why does my 1 TB drive show about 931 GB?
Drive makers count 1 TB as 1,000,000,000,000 bytes (decimal); the OS divides by 1024 three times (binary), giving roughly 931 GiB.