GB to TB Converter
Convert gigabytes to terabytes in your browser, with a full reference table and the formula behind it. Free, instant, no sign-up.
How to convert gigabytes to terabytes
terabytes = gigabytes × 0.001
One gigabyte is 0.001 terabytes, so any conversion is a single multiplication. To go the other way, divide by 0.001 instead. The converter above is already set to gigabytes and terabytes, so you can type any value and read the answer straight away.
GB to TB conversion table
Common values, worked out in advance:
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 5 GB | 0.005 TB |
| 10 GB | 0.01 TB |
| 50 GB | 0.05 TB |
| 100 GB | 0.1 TB |
| 500 GB | 0.5 TB |
| 1,000 GB | 1 TB |
| 2,000 GB | 2 TB |
The quick mental version
For a rough answer without a calculator, remember that 1 TB is about 1,000 GB. That is usually close enough for shopping, travel and DIY, and the converter above gives you the exact figure when it matters.
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Frequently asked questions
How many terabytes are in 1 GB?
One GB is 0.001 TB. The table above covers the values people look up most often.
What is the formula to convert gigabytes to terabytes?
terabytes = gigabytes × 0.001. One gigabyte is 0.001 terabytes, so any conversion is a single multiplication. To go the other way, divide by 0.001 instead.
Is this gb to tb converter accurate?
Yes. It uses the exact internationally defined conversion factors and calculates in your browser, so nothing is rounded until the result is displayed.
Can I convert terabytes back to gigabytes here?
Yes. Use the swap button in the converter to reverse the direction, or pick any other pair of units from the two dropdowns.