Conversion or convert may refer to:

Arts, entertainment, and media

* Conversion (Doctor Who audio), "Conversion" (''Doctor Who'' audio), an episode of the audio drama ''Cyberman'' * Conversion (Stargate Atlantis), "Conversion" (''Stargate Atlantis''), an episode of the television series * The Conversion (The Outer Limits), "The Conversion" (''The Outer Limits''), a 1995 episode of the television series

Business and marketing

* Conversion funnel, the path a consumer takes through the web toward or near a desired action or conversion * Conversion marketing, when a website's visitors take a desired action * Converting timber to commercial lumber

Computing, science, and technology

* Conversion of units, conversion between different units of measurement

Computing and telecommunication

* CHS conversion of data storage, mapping cylinder/head/sector tuples to linear base address * CPS conversion, in computer science, changing the form of continuation-passing * Code conversion, in telecommunication, converting from one code to another * convert (command), a command-line utility in the Windows NT operating system * Convert, a command-line (graphics) image manipulation utility that is part of ImageMagick * Data conversion, conversion of computer data from one format to another ** Transcoding, analog-to-analog or digital-to-digital conversion of one video encoding to another * Type conversion, in computer science, changing the data type of a value into another data type

Other sciences

* Conversion (chemistry), the ratio of selectivity to yield or the change of a molecule * Electric vehicle conversion, modification of a conventional vehicle to battery electric * Energy conversion, the process of changing one form of energy to another * Internal conversion, a radioactive decay process

Economics, finance, and property law

* Conversion (exchange), the rate at which one currency will be exchanged for another * Conversion (law), a voluntary act by one person inconsistent with the ownership rights of another * Conversion (options), an options-trading strategy in options arbitrage * Economic conversion, a technical, economic and political process for moving from military to civilian markets * Equitable conversion, a change in the nature of property so that real property is treated as personal property

Psychiatry

* Conversion disorder, a condition in which neurological symptoms arise without a definable organic cause * Conversion therapy, a pseudo-scientific treatment to turn a homo- or bisexual person into a heterosexual person

Religion

* Religious conversion, the adoption of a new religious identity ** Deathbed conversion, a form of religious conversion ** Forced conversion, forced adoption of a new religious identity ** Marital conversion, a form of religious conversion ** Secondary conversion, a form of religious conversion ** Psychology of religious conversion, psychological aspect of religious conversion * Conversion to Buddhism, religious conversion to Buddhism * Conversion to Christianity, religious conversion to Christianity ** Conversion of Paul the Apostle, personal conversion of Paul of Tarsus ** Conversion of Constantine, personal conversion of emperor Constantine ** Conversion to Catholicism, religious conversion to the Catholicism ** Conversion of non-Christian places of worship into churches, conversion into churches * Conversion to Hinduism, religious conversion to Hinduism * Conversion to Islam, religious conversion to Islam ** Safavid conversion of Iran to Shia Islam, conversion within Islam in Iran ** Conversion of non-Islamic places of worship into mosques, conversion into mosques * Conversion to Judaism, religious conversion to Judaism * Conversion of the Jews, religious conversion of the Jewish people * History of Jewish conversion to Christianity, conversion of the Jews to Christianity

Sports

* Conversion (gridiron football), in American or Canadian football an opportunity to score an additional point following a touchdown **Two-point conversion, a gridiron football conversion to score two points * Track and field athletics, an estimate of what a performance which has been measured in one system of measurements would have been if it had been measured in the other system * Try (rugby), Try#Conversion, in rugby, a kick at goal to convert a try into a larger set of points

Other uses

* Conversion (barn), conversion of old farming barns to commercial or residential use * Conversion (logic), reversing the two parts of a categorical or implicational statement * Conversion (word formation), the creation of a word from an existing word without any change in form * Miniature conversion, altering the appearance of a miniature or model from the standard version