Tools
Free calculators built for the specific questions foreigners actually ask about Korea. No sign-up, no fluff — an answer in seconds.
Korean Age Calculator
Enter a birth date and get your Korean international age instantly, with the exact rule explained.
Open calculator →Live nowHangul Name Converter
Convert any name into accurate Hangul spelling, syllable by syllable, using Korea's official loanword rules.
Open converter →Live nowKorean Name Pronunciation
Hear a Korean name and see how to say it — respelling, IPA, and the sound changes the romanisation hides.
Open pronouncer →Live nowKorean Size Converter
Convert Korean shoe sizes to US, UK and EU, and decode clothing sizes 44/55/66 and 90/95/100 — with what each number measures.
Open converter →How these are built
Each tool exists because Korea does something differently from the rest of the world, and the conversion charts floating around the web get that difference wrong. Shoe sizes are a real measurement in millimetres; the women's clothing scale is the residue of a national standard withdrawn in 1999; Korean names change sound at syllable boundaries in ways their romanisation never shows; and three separate legal definitions of age still operate side by side.
So the tools show their working. Where a number is a measurement, it converts exactly and says so. Where it is only convention, it is labelled as convention rather than presented as a fact. Where the standard itself is unsettled — as it is for the pronunciation of a Korean surname followed by a given name — the tool says that too instead of inventing certainty.
Everything runs in your browser. Nothing you type is sent anywhere, there is no sign-up, and no tool needs an account.