Skip to content
EntityQ107205· pop 54· linked from 118 articles

Also known as M, mega prefix, mega SI prefix, M-, mega-

Mega is a unit prefix in metric systems of units denoting a factor of one million (106 or 1000000 (number)|). It has the unit symbol M. It was confirmed for use in the International System of Units (SI) in 1960. Mega comes from .

AI overview

Mega is a metric prefix meaning one million times, represented by the symbol "M" — so a megabyte is one million bytes, for example. It was officially adopted in 1960 as part of the International System of Units, making it a standard way to express large quantities across science, technology, and everyday measurements.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Show 5 more facts
unit symbol
М
numeric value
1000000
Commons category
Mega
time of discovery or invention
1873-00-00
NCI Thesaurus ID
C54653
Sources (4)

via Wikidata · CC0

~2 min read

Article

6 sections
Contents
  • Common examples of usage
  • Exponentiation
  • Computing
  • See also
  • References
  • External links

Mega is a unit prefix in metric systems of units denoting a factor of one million (106 or 1000000 (number)|). It has the unit symbol M. It was confirmed for use in the International System of Units (SI) in 1960. Mega comes from .

==Common examples of usage== Megapixel: 1 million pixels in a digital camera One megatonne of TNT equivalent amounts to approx. 4 petajoules and is the approximate energy released on igniting one million tonnes of TNT. The unit is often used in measuring the explosive power of nuclear weapons. Megahertz: frequency of electromagnetic radiation for radio and television broadcasting, GSM, etc. 1 MHz = 1,000,000 Hz. Megabyte: unit of information equal to one million bytes (SI standard). Megawatt: equal to one million watts of power. It is commonly used to measure the output of power plants, as well as the power consumption of electric locomotives, data centers, and other entities that heavily consume electricity. Megadeath: (or megacorpse) is one million human deaths, usually used in reference to projected number of deaths from a nuclear explosion. The term was used by scientists and thinkers who strategized likely outcomes of all-out nuclear warfare.

Connections

Categories