A megabyte is a unit of digital information commonly equal to about one million bytes, often used to measure file sizes and storage capacity. In some technical contexts, it can mean 1,048,576 bytes (1024 × 1024).
Formed from “mega-”, a metric prefix meaning 'one million', plus “byte”, a basic unit of digital information. The prefix “mega-” comes from Greek “megas” meaning 'great, large'. Computers adopted metric prefixes in the mid‑20th century to name growing data sizes.
Try Another Word