How to convert gigabytes to terabytes
TB = GB × 0.001Multiply the value in gigabytes by 0.001. To go the other way, multiply by 1,000 (or divide by 0.001).
A gigabyte is smaller than a terabyte: it takes 1,000 gigabytes to make one terabyte.
Worked examples
- 1 gigabyte1 GB × 0.001 = 0.001 TB
- 5 gigabytes5 GB × 0.001 = 0.005 TB
- 10 gigabytes10 GB × 0.001 = 0.01 TB
- 20 gigabytes20 GB × 0.001 = 0.02 TB
- 100 gigabytes100 GB × 0.001 = 0.1 TB
Gigabytes to terabytes conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 0.1 GB | 0.0001 TB |
| 0.25 GB | 0.00025 TB |
| 0.5 GB | 0.0005 TB |
| 1 GB | 0.001 TB |
| 2 GB | 0.002 TB |
| 3 GB | 0.003 TB |
| 4 GB | 0.004 TB |
| 5 GB | 0.005 TB |
| 6 GB | 0.006 TB |
| 7 GB | 0.007 TB |
| 8 GB | 0.008 TB |
| 9 GB | 0.009 TB |
| 10 GB | 0.01 TB |
| Gigabytes (GB) | Terabytes (TB) |
|---|---|
| 12 GB | 0.012 TB |
| 15 GB | 0.015 TB |
| 20 GB | 0.02 TB |
| 25 GB | 0.025 TB |
| 30 GB | 0.03 TB |
| 40 GB | 0.04 TB |
| 50 GB | 0.05 TB |
| 75 GB | 0.075 TB |
| 100 GB | 0.1 TB |
| 250 GB | 0.25 TB |
| 500 GB | 0.5 TB |
| 1,000 GB | 1 TB |
About the units
Gigabyte (GB)
10⁹ bytes. Phone storage, data plans and RAM are sold in GB. One gigabyte equals 8,000,000,000 bits (b).
Terabyte (TB)
10¹² bytes. Hard drives and SSDs are marketed in decimal terabytes. One terabyte equals 8,000,000,000,000 bits (b).
Frequently asked questions
How many terabytes are in one gigabyte?
There are 0.001 terabytes in one gigabyte, and this value is exact by definition.
How do I convert gigabytes to terabytes?
Multiply the number of gigabytes by 0.001. For example, 10 GB × 0.001 = 0.01 TB.
How many gigabytes are in one terabyte?
One terabyte equals 1,000 gigabytes. That is the reverse factor, 1 ÷ 0.001.
What is 10 gigabytes in terabytes?
10 GB = 0.01 TB.
Is this GB to TB converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.