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Multiples of bytes
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
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

The zebibyte 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 ZiB.

The prefix zebi (symbol Zi) represents multiplication by 10247, therefore:

1 zebibyte = 270 bytes = 1180591620717411303424bytes = 1024 exbibytes

The prefix zebi was originally not part of the system of binary prefixes, but was added together with the prefix yobi by the IEC in August 2005.[1]

Usage examples[edit]

See also[edit]


  1. ^ News & views from the IEC June 2012
  2. ^ "FAQ: Drive Partition Limits" (PDF). UEFI Forum. 2010-06-09. Retrieved 2013-05-29. 
  3. ^ Roderick W. Smith (2012-07-03). "Make the most of large drives with GPT and Linux". IBM. Retrieved 2013-05-29. Disk pointers are 64 bits in size, meaning that GPT can handle disks of up to 512 x 264 bytes (8 zebibytes, or 8.6 billion TiB), assuming 512-byte sectors. 
  4. ^ "Oracle Solaris ZFS Administration Guide". Oracle Corporation. Retrieved July 27, 2013.