megabyte [MB] Unit Converter

Definition of megabyte [MB] unit

A megabyte (MB) is a unit of digital information equal to 1,000,000 bytes in decimal notation. In binary-based computing, it is sometimes used for 1,048,576 bytes, though that value is more precisely called a mebibyte (MiB).

History of megabyte [MB] unit

The prefix “mega-” comes from the Greek word megas, meaning “great,” and traditionally denotes one million. As computing developed, manufacturers and engineers adopted megabyte for memory, storage, and data rates. Early computer usage sometimes treated a megabyte as 220 bytes, reflecting binary hardware. To reduce ambiguity, the International Electrotechnical Commission introduced “mebibyte” in 1998 for 1,048,576 bytes, while megabyte remained the decimal unit. Both interpretations still appear in software, operating systems, product specifications, and everyday technical discussions around the world and across changing computing standards.

Applications of megabyte [MB] unit

Megabytes are commonly used to describe file sizes, download quantities, storage capacity, and memory requirements. A photograph may occupy several megabytes, while a short audio clip or document may use one or more. Internet plans may measure transferred data in megabytes, and software installers, compressed archives, and mobile applications frequently report their sizes using MB.

Complete list of megabyte [MB] unit conversion