Digital storage conversion
Gigabyte to Terabyte
One gigabyte is 0.001 terabytes. Enter any value below to convert it instantly, or use the reference table further down for the numbers you need most often.
Conversion rate
1 GB = 0.001 TB
TB = GB × 0.001
1 GB = 0.001 TB
Reference
Gigabyte to Terabyte table
The values people look up most often, rounded for practical use.
| Gigabyte (GB) | Terabyte (TB) | Written out |
|---|---|---|
| 1 GB | 0.001 TB | 1 gigabytes = 0.001 terabytes |
| 2 GB | 0.002 TB | 2 gigabytes = 0.002 terabytes |
| 3 GB | 0.003 TB | 3 gigabytes = 0.003 terabytes |
| 5 GB | 0.005 TB | 5 gigabytes = 0.005 terabytes |
| 10 GB | 0.01 TB | 10 gigabytes = 0.01 terabytes |
| 15 GB | 0.015 TB | 15 gigabytes = 0.015 terabytes |
| 20 GB | 0.02 TB | 20 gigabytes = 0.02 terabytes |
| 25 GB | 0.025 TB | 25 gigabytes = 0.025 terabytes |
| 50 GB | 0.05 TB | 50 gigabytes = 0.05 terabytes |
| 100 GB | 0.1 TB | 100 gigabytes = 0.1 terabytes |
| 250 GB | 0.25 TB | 250 gigabytes = 0.25 terabytes |
| 500 GB | 0.5 TB | 500 gigabytes = 0.5 terabytes |
| 1,000 GB | 1 TB | 1,000 gigabytes = 1 terabytes |
How to convert gigabytes to terabytes
Multiply the number of gigabytes by 0.001. That is the whole calculation: TB = GB × 0.001. To go back the other way, divide instead, or multiply by 1,000.
Worked example: 12 gigabytes × 0.001 = 0.012 terabytes.
Where this conversion comes up
Digital storage has two competing definitions. Drive manufacturers use decimal units where 1 GB = 1,000,000,000 bytes, while operating systems often display binary units where 1 GiB = 1,073,741,824 bytes. That difference is why a “1 TB” drive shows up as about 931 GB.
Quick answers
- 1 gigabyte = 0.001 terabytes
- 2 gigabytes = 0.002 terabytes
- 5 gigabytes = 0.005 terabytes
- 10 gigabytes = 0.01 terabytes
- 100 gigabytes = 0.1 terabytes
More conversions
Other digital storage conversions
Answers
Frequently asked questions
TB = GB × 0.001. The converter above applies it for you, but the formula is useful in a spreadsheet — put your value in column A and the formula in column B.Related tools
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