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Korean Age Calculator

Enter your date of birth to calculate your Korean age, international age, and year age.

Enter Date of Birth

Enter your date of birth for accurate age calculation

Date of Birth

Age Calculation Methods

Korean Age (Counting Age)

You are 1 year old at birth and gain 1 year on New Year's Day, regardless of your birthday. This is the traditional Korean age counting method.

Korean Age = Current Year - Birth Year + 1

International Age

You are 0 years old at birth and gain 1 year on each birthday. This is the standard age calculation method used worldwide.

International Age = Current Year - Birth Year (-1 if birthday hasn't passed this year)

Year Age

Simply the current year minus your birth year, regardless of your birthday. Often used for school grades or same-age groups.

Year Age = Current Year - Birth Year

📅 Legal Age Update (2023)

Starting from June 28, 2023, South Korea officially uses the international age system. All administrative and judicial age calculations now use the international age standard.