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Gigabytes to Terabytes (GB to TB)
Convert gigabytes to terabytes: 1 GB = 0.001 TB. Exact conversion factor, formula, 18-row table and worked examples, with JSON API and MCP access.
Formula
1 GB = 0.001 TB
terabytes = gigabytes × 0.001 — reverse: gigabytes = terabytes × 1000
The factor is derived from the SI definitions of both units (base unit: B) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 1.5 GB = 0.0015 TB
- 700 GB = 0.7 TB
- 2048 GB = 2.048 TB
Gigabytes to terabytes conversion table
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 4 | 0.004 |
| 8 | 0.008 |
| 16 | 0.016 |
| 32 | 0.032 |
| 64 | 0.064 |
| 100 | 0.1 |
| 128 | 0.128 |
| 256 | 0.256 |
| 500 | 0.5 |
| 512 | 0.512 |
| 1000 | 1 |
| 1024 | 1.024 |
| 2048 | 2.048 |
| 4096 | 4.096 |
| 8192 | 8.192 |
| 10000 | 10 |
FAQ
How many terabytes are in one gigabyte?
1 GB = 0.001 TB. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert gigabytes to terabytes?
Multiply the value in gigabytes by 0.001: terabytes = gigabytes × 0.001. For example, 1.5 GB = 0.0015 TB.
How do I convert terabytes back to gigabytes?
Multiply by the inverse factor 1000 (gigabytes = terabytes × 1000), or use the terabytes-to-gigabytes page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=1.5&from_unit=GB&to_unit=TB - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":1.5,"from_unit":"GB","to_unit":"TB"} - Markdown: https://tttkmbb.com/conversion/gb-to-tb.md · JSON: https://tttkmbb.com/conversion/gb-to-tb.json (add
?value=for a result) · Units: /api/v1/units?quantity=data-storage - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.