Convert GB to TB
Convert data storage units instantly: bits, bytes, KB, MB, GB, TB and the binary KiB, MiB, GiB, TiB — with the 1000 vs 1024 distinction made explicit.
Processed entirely in your browser — nothing you enter here is ever uploaded.
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About this tool
This page opens the data storage converter preset to gigabytes → terabytes. In decimal SI units one terabyte equals exactly 1,000 gigabytes, so TB = GB ÷ 1,000: 500 GB is 0.5 TB and 4,000 GB is 4 TB.
This pair is where the 1000-vs-1024 gap becomes most visible. Drive manufacturers use decimal units, so a "1 TB" disk holds 1,000,000,000,000 bytes. Windows divides that by 1,073,741,824 and shows roughly 931 — in binary gibibytes (GiB), labelled "GB". The larger the drive, the wider the apparent gap: about 7% at the terabyte scale. Both numbers are correct; they just use different units.
Use this preset when sizing backup drives, comparing NAS capacities, adding up video libraries, or checking whether your collection of games still fits on a 2 TB SSD. Enter gigabytes, press Convert, and switch to GiB/TiB in the selectors if you need the binary view instead.
Example. Entering 1 KiB and converting to bytes returns 1024, while 1 KB returns 1000.
Limit. Prefixes stop at terabyte and tebibyte; petabyte and larger units are absent from the factor table.