GB to TB Converter
Convert gigabytes (GB) to terabytes (TB) instantly using the standard 1 TB = 1024 GB.
Convert gigabytes to terabytes instantly with this free online tool. Type a value in gigabytes and see the equivalent in terabytes right away, or type a terabyte value to convert back. It uses the standard binary definition of 1 TB = 1024 GB, and everything runs in your browser — no sign-up and no waiting.
How to convert GB to TB
To convert gigabytes to terabytes, divide the number of gigabytes by 1024, because one terabyte equals 1024 gigabytes in the binary convention used by most operating systems. For example, 2048 GB ÷ 1024 = 2 TB. This converter does the math for you and updates as you type.
- Enter the number of gigabytes in the first field.
- Read the result in terabytes in the second field.
- Type into the TB field to convert in the other direction.
Is a terabyte 1024 or 1000 GB?
It depends on the convention. In the binary (IEC) convention used by Windows, Linux, and most software, 1 TB = 1024 GB (technically a tebibyte, TiB). In the decimal (SI) convention used by storage and drive manufacturers, 1 TB = 1000 GB. This tool uses 1024 GB per TB, which matches how file and drive sizes are reported on most computers.
Why use this GB to TB converter?
- 100% free with no ads, sign-up, or limits.
- Instant, two-way conversion as you type.
- Uses the standard 1 TB = 1024 GB.
- Runs entirely in your browser.
Frequently asked questions
How many GB are in a terabyte?
In the binary convention used by most operating systems, 1 terabyte (TB) equals 1024 gigabytes. In the decimal convention used by some storage makers, 1 TB equals 1000 GB.
What is the formula to convert GB to TB?
Terabytes = gigabytes ÷ 1024. For example, 5120 GB ÷ 1024 = 5 TB.
How many TB is 2048 GB?
2048 GB equals exactly 2 TB when 1 TB is 1024 GB.