Gibibyte

Multiples of bytes
Decimal Value Metric 1000 kB kilobyte 10002 MB megabyte 10003 GB gigabyte 10004 TB terabyte 10005 PB petabyte 10006 EB exabyte 10007 ZB zettabyte 10008 YB yottabyte	Binary Value IEC JEDEC 1024 KiB kibibyte KB kilobyte 10242 MiB mebibyte MB megabyte 10243 GiB gibibyte GB gigabyte 10244 TiB tebibyte – 10245 PiB pebibyte – 10246 EiB exbibyte – 10247 ZiB zebibyte – 10248 YiB yobibyte –
Orders of magnitude of data

The gibibyte is a multiple of the unit byte for digital information. It is a member of the set of units with binary prefixes defined by the International Electrotechnical Commission (IEC). Its unit symbol is GiB.

The prefix gibi (symbol Gi) represents multiplication by 1024³, therefore:

1 gibibyte = 2³⁰ bytes = 1073741824bytes = 1024 mebibytes

The gibibyte is very closely related to the gigabyte (GB). The GB is defined as 10⁹ bytes = 1000000000bytes, but has been used as a synonym for gibibyte in some contexts. 1GiB ≈ 1.074GB. 1024 gibibytes are equal to one tebibyte.

Binary prefixes are increasingly used in technical literature and open source software, and are a component of the International System of Quantities.

This unit is used for measuring computer, smartphone and tablet RAM.

See also

• Gibibit
• IEEE 1541
• IEC 80000-13
• Orders of magnitude (data)
• SI prefix