Korean Age Calculator
Convert your international age to Korean age system. See both ages side by side instantly.
Understanding the Korean Age System
The Korean age system (λ§ λμ΄ vs μΈλ λμ΄) differs from the international system in two key ways: you start at age 1 (not 0) at birth, and everyone ages together on New Year's Day rather than on individual birthdays.
This means a baby born on December 31st would be considered 2 years old the very next day (January 1st) in the Korean system, despite being only 1 day old internationally.
Frequently Asked Questions
What is Korean age?
In the Korean age system, a baby is considered 1 year old at birth, and everyone gains one year on January 1st regardless of their actual birthday. This means your Korean age is always 1-2 years higher than your international age.
How do you calculate Korean age?
Korean age = Current year - Birth year + 1. For example, if you were born in 1990 and the current year is 2025, your Korean age would be 2025 - 1990 + 1 = 36.
Does South Korea still use Korean age?
In June 2023, South Korea officially adopted the international age system for legal and administrative purposes. However, many Koreans still use the traditional system in everyday conversation.
Why is Korean age different?
Korean age counts the time spent in the womb as the first year of life (starting at 1, not 0), and adds a year every New Year's Day rather than on individual birthdays.