How to say "conversion" in Japanese

• 転換てんかんJLPT N1approx.Common
  suru verb, transitive verb, intransitive verb, no-adjectiveCovers conversion as a changeover or diversion: a turn from one course, system, or state to another. Think of a change of direction or course rather than changing a thing's form.
  工場こうじょうは石炭せきたんから、より清潔せいけつな燃料ねんりょうへの転換てんかんを強つよく要求ようきゅうされている。↗

  Factories have been urged to switch from coal to a cleaner fuel.
• 変換へんかんCommon
  noun, suru verb, transitive verbConversion or transformation: changing something from one form into another. The general-purpose choice, as when data or text is converted from one format to another.
  このファイルをウインドウズ９５対応たいおうのファイルに変換へんかんして再送さいそうしてくれますか。↗

  Could you convert this file into a Windows 95 compatible file and re-send it?
• 転向てんこうCommon
  noun, suru verb, intransitive verbConversion in the sense of an about-face: a shift in one's opinion, stance, or allegiance. It describes a person or group turning to a different position or belief, not the conversion of things.
  コンピューターの仕事しごとから金融きんゆう、会計かいけいなどの仕事しごとに転向てんこうすることは可能かのうである。↗

  It's possible to branch out from computing to jobs in banking, accountancy and so on.
• 換算かんさんJLPT N1approx.Common
  noun, suru verb, transitive verbConversion of numerical values: translating one quantity into another unit or currency, as in converting yen into dollars. Confined to numbers and measures, not to changing forms or stances.
  あなたは何なんでも金かねに換算かんさんして考かんがえない方ほうがよい。↗

  You had better not think of everything in terms of money.
• 切り替えきりかえCommon
  nounConversion as switching over: changing from one thing, mode, or system to another, or replacing one with the other. The emphasis is on the switch itself, not on transforming what is converted.

Use 変換 for converting something into a different form, 換算 for numerical conversions such as yen into dollars, 転換 for changeovers of course or system, 転向 for about-faces in stance or belief, and 「切り替え」 for switching over.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 転換てんかんconversion
• 変換へんかんchange
• 転向てんこうconversion
• 換算かんさんconversion (e.g. yen to dollars)
• 切り替えきりかえexchange
• 引き換えひきかえexchange
• 換金かんきんrealization (of goods into money)
• コンバートconversion (esp. of computer data)
• 借り換えかりかえconversion
• 改造かいぞうremodeling
• コンバージョンconversion
• 回心えしんconversion
• 兌換だかんconversion (of paper money, esp. into specie)
• 変字へんじconversion
• 宗旨替えしゅうしがえconversion (to a different religion, denomination, etc.)
• 換価かんかappraisal
• 帰依きえbecoming a devout believer
• 回心かいしん(religious) conversion (esp. to Christianity)
• 換位かんい(logical) conversion (transposition of subject and predicate to form a new proposition)
• 乗り換えのりかえswitch (to another ideology, party, system, method, etc.)
• 転成てんせいfunctional shift