Conversion
Change
noun, verbal noun
If you change something then exchange it, you are making a conversion or a change.
変換 generally refers to converting something from one form to another, like data conversion, energy transformation, or even converting hiragana to kanji.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
太陽エネルギーを電気に変換する技術を開発した人に会ってみたいです。
I'd love to meet the person who developed the technology to convert solar energy into electricity.
海外でもパソコンを使えるように変換プラグを買ってきました。
I bought a conversion plug so that I can use my computer overseas.
平仮名がうまく漢字に変換できない時は、大体タイプミスが原因です。
If you can't convert your hiragana to kanji properly, it's probably because there's a typo.