Gibibyte

Multiple-byte units
Decimal Value Metric 1000 103 kB kilobyte 10002 106 MB megabyte 10003 109 GB gigabyte 10004 1012 TB terabyte 10005 1015 PB petabyte 10006 1018 EB exabyte 10007 1021 ZB zettabyte 10008 1024 YB yottabyte 10009 1027 RB ronnabyte 100010 1030 QB quettabyte	Binary Value IEC Memory 1024 210 KiB kibibyte KB kilobyte 10242 220 MiB mebibyte MB megabyte 10243 230 GiB gibibyte GB gigabyte 10244 240 TiB tebibyte TB terabyte 10245 250 PiB pebibyte – 10246 260 EiB exbibyte – 10247 270 ZiB zebibyte – 10248 280 YiB yobibyte – 10249 290 – – 102410 2100 – –
Orders of magnitude of data

The gibibyte is a multiple of the unit byte for digital information. The binary prefix gibi means 2³⁰, therefore one gibibyte is equal to 1073741824bytes = 1024 mebibytes. The unit symbol for the gibibyte is GiB. It is a member of the set of units with binary prefixes defined by the International Electrotechnical Commission (IEC).

The gibibyte is very closely related to the gigabyte (GB). The GB is defined by the IEC as 10⁹ bytes = 1000000000bytes, 1GiB ≈ 1.074GB. 1024 gibibytes are equal to one tebibyte. In the context of computer memory, Gigabyte and GB are customarily used to mean 1024³ (2³⁰) bytes, although not in the context of data transmission and not necessarily in the context of hard drive size. The word gibibyte was coined in 1998.

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

See also

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