Finance
- Currency conversion or exchange rate
- Conversion (options), one of the options strategies
Law
- Conversion (law), conversion by taking a chattel out of the possession of another with the intent of exercising a permanent or temporary dominion over it, despite the owner's entitlement to use it at all
- Criminal conversion, exerting unauthorised use or control of someone else's property
- Equitable conversion, A change in the nature of property so that real property is treated as personal property, or vice versa, in certain circumstances
Marketing
- Conversion (marketing), when a prospective customer takes the marketer's intended action
- Conversion funnel, in Internet marketing, the process of tracking website visitors conversion across a series of process steps
- Conversion rate, in Internet marketing, the percentage of unique visitors who take a desired action upon visiting the website
Religion
- Religious conversion, the adoption of a new religious identity
- Deathbed conversion, done just before death
- Forced conversion, done under duress
- Marital conversion, conversion upon marriage outside of the individual's original religious adherence (or non-adherence)
- Secondary conversion, done because of a personal relationship
- Conversion to Islam
- Conversion to Judaism
- Conversion to Christianity
\Sport
- Conversion, in the sports of Rugby league and Rugby union, a kick at goal to convert the try from one set of points into another larger set of points
- In 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
- In American football, a one-point conversion or a two-point conversion, an opportunity to score one or two extra points, respectively, following a touchdown
Science & technology
- Conversion of units, between different units of measurement
- See also: Units conversion by factor-label and Dimensional analysis
- Conversion (chemistry)
- Conversion (logic), a concept in traditional logic
- Electric vehicle conversion, modification of a conventional vehicle to battery electric
- Energy transformation or "energy conversion"
- Internal conversion, a radioactive decay process
Computing
- Convert (command), a shell command to convert volumes using the FAT file systems to NTFS
- CHS conversion, cylinder/head/sector to linear base address
- Code conversion, multiple meanings in telecommunication
- Data conversion, from one form of computer data to another
- ImageMagick, graphics manipulation program executed with the command:
convert - Transcoding (Video conversion):
- Upconversion of video to a higher definition
- Type conversion, in computer science, changing an entity of one data type into another
Entertainment
- "Conversion" (Stargate Atlantis), an episode of the television series
- "The Conversion" (The Outer Limits), an episode of the television series
Other meanings
- Conversion (linguistics), the creation of a word from an existing word without any change in form
- Conversion syndrome, a condition in which physical symptoms arise for which there is no clear explanation; cf. Conversion disorder
- Conversion therapy, attempts to eliminate or diminish same-sex desires and behaviors
- Conversion of scripts - procedure of replacing text written in one writing system with characters of another writing system
- Miniature conversion, altering the appearance of a model
