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Megabyte

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This article is about the unit of data. For the ReBoot character, see Megabyte (ReBoot).

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Multiples of bytes
SI decimal prefixes Binary
usage IEC binary prefixes
Name
(Symbol) Value Name
(Symbol) Value
kilobyte (kB) 103 210 kibibyte (KiB) 210
megabyte (MB) 106 220 mebibyte (MiB) 220
gigabyte (GB) 109 230 gibibyte (GiB) 230
terabyte (TB) 1012 240 tebibyte (TiB) 240
petabyte (PB) 1015 250 pebibyte (PiB) 250
exabyte (EB) 1018 260 exbibyte (EiB) 260
zettabyte (ZB) 1021 270 zebibyte (ZiB) 270
yottabyte (YB) 1024 280 yobibyte (YiB) 280
See also: Multiples of bits · Orders of magnitude of data

The megabyte (abbreviated as Mbyte or MB) is a multiple of the unit byte for digital information storage or transmission with three different values depending on context: 1048576 bytes (220) generally for by Text-Enhance" href="http://en.wikipedia.org/wiki/Megabyte">computer memory;[1][2] and one million bytes (106, see prefix mega-) generally for by Text-Enhance" href="http://en.wikipedia.org/wiki/Megabyte">computer storage.[1][3] In rare cases, it is used to mean 1000×1024 (1024000) bytes.[3] The IEEE Standards Board has confirmed that mega- means 1000000, with exceptions allowed for the base-two meaning.[