Enter a birth date for today's exact age, or any reference date such as an application deadline.
You are 0 at birth and gain a year on each birthday; the age shown is complete years and months as of the reference date. Since 28 June 2023 this international age is the legal age in Korea unless a law states otherwise.
In non-leap years the birthday is taken as 1 March. Some institutions use 28 February, so check when it matters.
Some Korean laws (military service, youth protection, school entry) use the current year minus the birth year, shown separately.
No. The birth date is used only in your browser and remembered only there for convenience.
Complete months since the last birthday; if today's day of month is before the birth day, one month is subtracted.
Set 'As of' to that date, for example an exam or application deadline.