Gigabytes to Terabytes Converter
Convert gigabytes (GB) to terabytes (TB) instantly. Type a value above and the result updates while you type. 1 gigabyte equals 0.001 terabytes.
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 gigabyte = 0.001 terabytes
Multiply the gigabytes value by 0.001 to get terabytes. Or divide by 1000 to go the other way.
Gigabytes to terabytes conversion table
| GB | TB |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 8 | 0.008 |
| 10 | 0.01 |
| 16 | 0.016 |
| 25 | 0.025 |
| 32 | 0.032 |
| 50 | 0.05 |
| 64 | 0.064 |
| 100 | 0.1 |
| 128 | 0.128 |
| 250 | 0.25 |
| 256 | 0.256 |
| 500 | 0.5 |
| 1000 | 1 |
Worked examples
- 5 GB × 0.001 = 0.005 TB
- 30 GB × 0.001 = 0.03 TB
- 165 GB × 0.001 = 0.165 TB
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
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Frequently asked questions
How many terabytes are in 1 gigabyte?
1 gigabyte equals 0.001 terabytes (GB → TB).
How do you convert gigabytes to terabytes?
Multiply the number of gigabytes by 0.001. For example: 10 GB × 0.001 = 0.01 TB.
What is 50 GB in TB?
50 GB equals 0.05 TB.
Which is bigger: 1 gigabyte or 1 terabyte?
1 terabyte is bigger: 1 gigabyte is only 0.001 terabytes.