mega·​byte | \ ˈme-gə-ˌbīt How to pronounce megabyte (audio) \

Definition of megabyte

: 1024 kilobytes or 1,048,576 bytes also : one million bytes

Examples of megabyte in a Sentence

The CD has a storage capacity of 800 megabytes.
Recent Examples on the Web Not all that long ago, a complex game or software program fit on a 1.4 megabyte floppy disk. Klint Finley, Wired, "The JavaScript Framework That Puts Web Pages on a Diet," 4 Apr. 2020 Designed specifically to endure shocks, crushing, drops, dust, and water, the stylish Rugged Mini offers protection from the elements in capacities from one to eight terabytes and boasts transfer speeds of up to 130 megabytes per second. Popular Science, "The best external hard drives for every task," 25 Mar. 2020 Megabits are one-eighth the size of a megabyte (at a rate of 1 megabit per second, for example, a 10MB image would take 80 seconds to download). Patrick Lucas Austin, Time, "What Internet Speeds Should You Really Be Paying For? Here's How to Decide," 21 Feb. 2020 The 286 was a 16-bit CPU that could address up to 16 megabytes of random access memory (RAM) through a 24-bit address bus. Jeremy Reimer, Ars Technica, "Half an operating system: The triumph and tragedy of OS/2," 29 Nov. 2019 According to figures collected by John McCallum, a computer scientist, a megabyte of data storage in 1956 would have cost around $9,200 ($85,000 in today’s prices). The Economist, "Drastic falls in cost are powering another computer revolution," 12 Sep. 2019 To be sure, the phone’s 4G speed was still mighty fast, up to 117 megabytes. Hiawatha Bray,, "These Providence 5G cellphone speeds are almost hot to handle," 14 Aug. 2019 In the 1980s, public keys based on lattices were too long, requiring megabytes of data to transmit. Quanta Magazine, "A Tricky Path to Quantum-Safe Encryption," 8 Sep. 2015 With projects like Android Go focusing on squeezing every megabyte out of cheap devices with only 8GB of internal storage, app bundles and dynamic delivery would be a huge boon. Ron Amadeo, Ars Technica, "Android 9 Pie, thoroughly reviewed," 13 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'megabyte.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of megabyte

1965, in the meaning defined above

History and Etymology for megabyte

from the fact that 1,048,576 (220) is the power of 2 closest to one million

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Time Traveler for megabyte

Time Traveler

The first known use of megabyte was in 1965

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Cite this Entry

“Megabyte.” Dictionary, Merriam-Webster, Accessed 29 Oct. 2020.

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How to pronounce megabyte (audio)

English Language Learners Definition of megabyte

computers : a unit of computer information equal to 1,048,576 bytes


mega·​byte | \ ˈme-gə-ˌbīt How to pronounce megabyte (audio) \

Kids Definition of megabyte

: a unit of computer information storage capacity equal to 1,048,576 bytes

More from Merriam-Webster on megabyte

Nglish: Translation of megabyte for Spanish Speakers

Britannica English: Translation of megabyte for Arabic Speakers

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