Mebibit

Mebibit is a unit of information in the binary prefix system. It denotes 2^20 bits, equal to 1,048,576 bits. In bytes, a mebibit is 131,072 bytes, or 128 kibibytes (KiB). It is one-eighth of a mebibyte (MiB), and eight mebibits make one mebibyte.

The symbol for the mebibit is commonly written as Mibit (or Mib), and when used for data rates it may appear as Mibit/s. It is part of the IEC binary prefixes that distinguish binary multiples from the decimal prefixes used for units such as megabits and megabytes.

Mebibits are used where binary multiples are convenient, such as certain memory and storage specifications. In networking and many consumer contexts, decimal megabits per second (Mbps) are more common, while mebibits per second (Mibit/s) appear in some technical documents and specifications that emphasize binary sizing.

Converting between binary and decimal units can cause confusion because 1 Mibit equals about 1.0486 decimal megabits. Conversely, 1 MiB equals 8 Mibit. The mebibit is one of several binary-prefixed units designed to provide precise, unambiguous representations of information sizes in computing.