Prefixes for bit and byte multiples
Decimal Value SI 1000 k kilo 10002 M mega 10003 G giga 10004 T tera 10005 P peta 10006 E exa 10007 Z zetta 10008 Y yotta	Binary Value IEC JEDEC 1024 Ki kibi K kilo 10242 Mi mebi M mega 10243 Gi gibi G giga 10244 Ti tebi 10245 Pi pebi 10246 Ei exbi 10247 Zi zebi 10248 Yi yobi

The gibibyte (a contraction of gigabinary byte, pronounced GIH-bee-byte) is a standards-based binary multiple (prefix gibi-, symbol Gi-) of the byte, a unit of digital information storage. The gibibyte unit symbol is GiB.^[1]

1 gibibyte = 2³⁰ bytes = 1073741824bytes = 1024 mebibytes

The gibibyte is closely related to the gigabyte, which in some contexts is defined as 10⁹ bytes = 1000000000bytes, but has been used as a synonym for gibibyte in others (see binary prefix). Assuming the former definition, 1 GiB ≈ 1.074 GB.

[edit] See also

• SI prefix
• IEEE 1541
• JEDEC memory standards
• Orders of magnitude (data)

[edit] References

v • d • e Units of information Base units Bit · Byte Related units Nibble · Word · Octet Traditional units Kilobyte · Megabyte · Gigabyte · Terabyte · Petabyte · Exabyte · Zettabyte · Yottabyte IEC standard units Kibibyte · Mebibyte · Gibibyte · Tebibyte · Pebibyte · Exbibyte · Zebibyte · Yobibyte Bit-based units Kilobit · Megabit · Gigabit · Terabit · Petabit · Exabit · Zettabit · Yottabit