Convert Terabytes to Gigabytes
Convert Terabytes to Gigabytes instantly. 1 Terabyte (TB) equals 1,000 Gigabytes (GB).
Terabytes to Gigabytes conversion table
| Terabytes (TB) | Gigabytes (GB) |
|---|---|
| 1 TB | 1,000 GB |
| 2 TB | 2,000 GB |
| 3 TB | 3,000 GB |
| 5 TB | 5,000 GB |
| 10 TB | 10,000 GB |
| 20 TB | 20,000 GB |
| 50 TB | 50,000 GB |
| 100 TB | 100,000 GB |
| 500 TB | 500,000 GB |
| 1,000 TB | 1,000,000 GB |
1 Terabyte = 1,000 Gigabytes · multiply Terabytes by 1,000
About converting Terabytes to Gigabytes
Terabytes (TB) and Gigabytes (GB) are both units of digital storage, so converting between them is a single multiplication: multiply your Terabytes figure by 1,000. Ten Terabytes comes to 10,000 Gigabytes, and a hundred works out at 100,000 Gigabytes.
Rule of thumb: going from Terabytes to Gigabytes multiplies, so the figure always grows — one Terabyte is already 1,000 Gigabytes. If your answer came out smaller, you have the conversion the wrong way round.
What is a Terabyte?
A terabyte is a trillion bytes, and it is the unit that makes the decimal-versus-binary confusion impossible to ignore: buy a 1 TB drive, plug it into Windows, and it reports roughly 931 GB. Nothing is missing and nobody has short-changed you — the manufacturer counted in decimal terabytes, as SI defines them and as this site does, while Windows divided by 1,024 three times and still wrote "GB" on the result. The honest label for what Windows shows is 931 GiB. macOS and Linux mostly report decimal now; Windows still does not.
What is a Gigabyte?
A gigabyte is a billion bytes in SI terms, and it is the unit consumers actually shop in: phone storage, mobile data allowances, game downloads. It is also where the decimal-versus-binary split gets genuinely interesting, because the answer depends on the product. Drives and data plans are sold in decimal gigabytes; memory is not, and an "8 GB" RAM module really is 8 GiB, because memory is physically addressed in powers of two and could not be built in round decimal sizes. Windows then reports both using binary units labelled "GB".
To put both in perspective: a 1 TB drive shows up as about 931 GB in Windows, while an hour of HD streaming video runs to a few gigabytes.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Gigabytes to Terabytes converter, or browse all Digital Storage converters.
Frequently asked questions
How many Gigabytes are in one Terabyte?
There are 1,000 Gigabytes in one Terabyte.
How do I convert Terabytes to Gigabytes?
Multiply the number of Terabytes by 1,000. For example, 10 Terabytes = 10,000 Gigabytes.
What is 100 Terabytes in Gigabytes?
100 Terabytes is equal to 100,000 Gigabytes.
How do I convert Gigabytes to Terabytes?
Multiply the Gigabytes value by 0.001 (or divide by 1,000).
Is this Terabytes to Gigabytes conversion exact?
Yes, exactly. Both units are fixed against the same base by definition, and 1 Terabyte = 1,000 Gigabytes is the complete value — nothing is rounded away.
What is a Terabyte?
A terabyte is a trillion bytes, and it is the unit that makes the decimal-versus-binary confusion impossible to ignore: buy a 1 TB drive, plug it into Windows, and it reports roughly 931 GB. Nothing is missing and nobody has short-changed you — the manufacturer counted in decimal terabytes, as SI defines them and as this site does, while Windows divided by 1,024 three times and still wrote "GB" on the result. The honest label for what Windows shows is 931 GiB. macOS and Linux mostly report decimal now; Windows still does not.
What is a Gigabyte?
A gigabyte is a billion bytes in SI terms, and it is the unit consumers actually shop in: phone storage, mobile data allowances, game downloads. It is also where the decimal-versus-binary split gets genuinely interesting, because the answer depends on the product. Drives and data plans are sold in decimal gigabytes; memory is not, and an "8 GB" RAM module really is 8 GiB, because memory is physically addressed in powers of two and could not be built in round decimal sizes. Windows then reports both using binary units labelled "GB".