Tebibyte (TiB)

ComputingCurrent unit

Exactly 2⁴⁰ bytes, about 9.9% larger than a terabyte.

1 tebibyte = 1,099,511,627,776 bytes (exactly).

1 tebibyte = 1,099,511,627,776 bytes

About the tebibyte

At tera scale the two systems drift furthest apart among the common units. The tebibyte equals 2 to the fortieth bytes, or 1,099,511,627,776 bytes, and the IEC created the bi prefixes in 1998 to separate powers of 1,024 from SI powers of 1,000. A power-of-10 terabyte is about 9 percent smaller than a tebibyte, so the gap has more than tripled since the kibibyte, which is only about 2.4 percent larger than a kilobyte.

Practical consequences are visible on any new drive. A 1 TB drive may be reported as about 931 GB by an operating system that counts in binary but labels it GB. Some systems use TB for 1,024 to the fourth bytes, but the JEDEC standard does not mention TB or larger units. The unit is defined in IEC 80000-13, and its TiB symbol is rarely used outside tools such as KDE and Qt-based applications.

Sources: Wikipedia: Tebibyte; Wikipedia: Terabyte; NIST: Prefixes for binary multiples

Tebibyte conversion chart

1 tebibyte expressed in every other digital storage unit:

Unit1 tebibyte
Bytes1,099,511,627,776
Kilobytes1,099,511,628
Megabytes1,099,511.628
Gigabytes1,099.511628
Terabytes1.099511628
Bits8,796,093,022,208
Petabytes0.001099511628
Kibibytes1,073,741,824
Mebibytes1,048,576
Gibibytes1,024
Kilobits8,796,093,022
Megabits8,796,093.022
Gigabits8,796.093022
Exabytes0.000001099511628
Zettabytes1.099511628×10⁻⁹
Yottabytes1.099511628×10⁻¹²
Pebibytes0.0009765625
Exbibytes9.536743164×10⁻⁷
Terabits8.796093022
Kibibits8,589,934,592
Mebibits8,388,608
Gibibits8,192
Nibbles2,199,023,255,552

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