TB to GB Converter
Formula
GB = TB × 1024
One terabyte equals 1,024 gigabytes.
How to use
- Enter the storage size in the Terabytes field.
- The converter multiplies by 1,024 automatically.
- Read the equivalent size in gigabytes.
Example
Enter 1 in Terabytes and the result is 1 × 1,024 = 1,024 GB. So a 1 TB drive holds roughly 1,024 gigabytes.
Frequently Asked Questions
How many GB in 1 TB?
1 TB = 1,024 GB.
How many GB in 2 TB?
2 TB = 2,048 GB.
Why does my 1 TB drive show up as about 931 GB on my computer?
Drive manufacturers label capacity using decimal units where 1 TB equals 1,000,000,000,000 bytes, but operating systems like Windows measure in binary units where a GB is 1,073,741,824 bytes. Dividing the decimal terabyte by the binary gigabyte gives roughly 931 GB, which is why the advertised number looks larger than what your system reports. No storage is actually missing; it's just two different definitions of the same word.
How many GB is half a terabyte?
Half a terabyte is 512 GB using the binary convention of 1,024 GB per TB. A 512 GB drive is a very common laptop and phone size, comfortably holding the operating system, apps, documents, and a moderate photo library. If you store large video files, you may find it fills up faster than expected.