Mebibit

Multiples of bits
Decimal Value SI 1000 10^3 kbit kilobit 1000^2 10^6 Mbit megabit 1000^3 10^9 Gbit gigabit 1000^4 10^12 Tbit terabit 1000^5 10^15 Pbit petabit 1000^6 10^18 Ebit exabit 1000^7 10^21 Zbit zettabit 1000^8 10^24 Ybit yottabit	Binary Value IEC JEDEC 1024 2^10 Kibit kibibit Kbit kilobit 1024^2 2^20 Mibit mebibit Mbit megabit 1024^3 2^30 Gibit gibibit Gbit gigabit 1024^4 2^40 Tibit tebibit - 1024^5 2^50 Pibit pebibit - 1024^6 2^60 Eibit exbibit - 1024^7 2^70 Zibit zebibit - 1024^8 2^80 Yibit yobibit -
See also Nibble Byte Orders of magnitude of data

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]

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 would sometimes report the amount of internal cartridge ROM (in megabits) on their packaging. 1 megabit equaled 128 kibibyte; 8 megabits were 1 mebibyte of ROM containing game instructions and data.

See also

• Mebibyte
• Mebibit per second

References

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