Mebibit

The mebibit is a multiple of the bit, a unit of information, prefixed by the standards-based multiplier "mebi" (symbol Mi), a binary prefix meaning 220.[1][2] The unit symbol of the mebibit is Mibit.

1 mebibit = 220 bits = 1048576bits = 1024 kibibits[3]
Multiples of bits
Decimal
Value SI
1000103 kbitkilobit
10002106 Mbitmegabit
10003109 Gbitgigabit
100041012 Tbitterabit
100051015 Pbitpetabit
100061018 Ebitexabit
100071021 Zbitzettabit
100081024 Ybityottabit
Binary
Value IEC JEDEC
1024210 Kibitkibibit Kbitkilobit
10242220 Mibitmebibit Mbitmegabit
10243230 Gibitgibibit Gbitgigabit
10244240 Tibittebibit -
10245250 Pibitpebibit -
10246260 Eibitexbibit -
10247270 Zibitzebibit -
10248280 Yibityobibit -
See also
Nibble
Byte
Orders of magnitude of data

This unit is most useful for measuring RAM and ROM chip capacity.

The mebibit is closely related to the megabit which equals 106 bits = 1,000,000 bits.

Throughout the 1980s and 1990s, video game manufacturers sometimes reported the amount of internal cartridge read-only memory (ROM) on packaging in megabits, where 1 megabit equaled 128 kibibyte and 8 megabits were 1 mebibyte of ROM, containing game instructions and data.

See also

References
  1. International Electrotechnical Commission, IEC 60027-2 (2000-11) Ed. 2.0
  2. A.J. Thor (2000). "Prefixes for binary multiples". Metrologia. 37 (81): 81. doi:10.1088/0026-1394/37/1/12.
  3. Definitions of the SI units: The binary prefixes
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