Mebibit

Multiple-bit units
Decimal Value Metric 1000 kbit kilobit 10002 Mbit megabit 10003 Gbit gigabit 10004 Tbit terabit 10005 Pbit petabit 10006 Ebit exabit 10007 Zbit zettabit 10008 Ybit yottabit 10009 Rbit ronnabit 100010 Qbit quettabit	Binary Value IEC Memory 1024 Kibit kibibit Kbit Kb kilobit 10242 Mibit mebibit Mbit Mb megabit 10243 Gibit gibibit Gbit Gb gigabit 10244 Tibit tebibit — 10245 Pibit pebibit — 10246 Eibit exbibit — 10247 Zibit zebibit — 10248 Yibit yobibit — — —
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. The unit symbol of the mebibit is Mibit.

1 mebibit = 2²⁰ bits = 1048576bits = 1024 kibibits

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.

The binary prefixes are not part of the International System of Units (SI).

See also

• Mebibyte
• Mebibit per second