TiB to TB
A TiB is two to the fortieth power of bytes while a TB is ten to the twelfth, so one TiB is about 1.0995 TB. That gap is why a 4 TB drive shows up as 3.64 TiB.
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Common values
Formula
TB = TiB × 1.099511627776
No capacity went missing; the two sides simply count differently. Windows labels TiB as TB, while macOS and drive makers use TB.
Frequently asked questions
Q. How many TB is 1 TiB?
1 TiB is 1.0995 TB, and 10 TiB is 10.9951 TB. Type any value in the box above to convert instantly.
Q. And how many TiB is 1 TB?
1 TB is 0.9095 TiB. This converter works both ways, so typing in the right box updates the left one.
Q. Where is this unit used?
No capacity went missing; the two sides simply count differently. Windows labels TiB as TB, while macOS and drive makers use TB.
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.