Gigabytes to Terabytes
A gigabyte is 1,000 megabytes, the standard unit for phone storage, video files, and monthly data plans. A terabyte is 1,000 gigabytes, the typical size for hard drives and cloud storage plans today. 1 GB equals 0.001 TB, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to data, measured here against data's base unit (bit) — every other data unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
TB = GB × 0.001
GB = TB × 1,000
Worked example: 5 GB × 0.001 = 0.005 TB.
Conversion table
| Gigabyte (GB) | Terabyte (TB) |
|---|---|
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 3 GB | 0.003 TB |
| 5 GB | 0.005 TB |
| 10 GB | 0.01 TB |
| 20 GB | 0.02 TB |
| 25 GB | 0.025 TB |
| 50 GB | 0.05 TB |
| 100 GB | 0.1 TB |
| 250 GB | 0.25 TB |
| 500 GB | 0.5 TB |
| 1,000 GB | 1 TB |
Frequently asked
- How many Terabytes in a gigabyte?
- 1 GB equals 0.001 TB.
- How do I convert Gigabytes to Terabytes?
- Multiply the value in GB by 0.001 to get TB. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Gigabyte and Terabyte are both defined by a fixed conversion factor to data's base unit (bit), so the result shown is exact to the precision displayed, not an approximation.