GB to TB Converter
Convert gigabytes (GB) to terabytes (TB). 1 GB = 0.001 TB.
How to convert GB to TB
Gigabytes and terabytes are both decimal (power-of-1000) units defined by the SI standard. One GB is 1,000,000,000 bytes and one TB is 1,000,000,000,000 bytes, so multiply a GB value by 0.001 to get TB.
GB to TB conversion table
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 4 | 0.004 |
| 5 | 0.005 |
| 8 | 0.008 |
| 10 | 0.01 |
| 16 | 0.016 |
| 25 | 0.025 |
| 32 | 0.032 |
| 50 | 0.05 |
| 100 | 0.1 |
| 128 | 0.128 |
| 250 | 0.25 |
| 256 | 0.256 |
| 500 | 0.5 |
| 512 | 0.512 |
| 1,000 | 1 |
| 1,024 | 1.024 |
KB vs KiB: 1000 or 1024?
SI units (KB, MB, GB, TB) are powers of 1000. Binary units (KiB, MiB, GiB, TiB) are powers of 1024. Storage manufacturers advertise in decimal units while operating systems often report binary units, which is why drives appear "smaller" than advertised. When precision matters, name the unit explicitly.