Korean Age Calculator (만 나이)
만 나이 · 만 나이 계산기 · korean age · 만나이 계산 · age in korea
Korean Age Calculator (만 나이)
Enter your birthdate to get your age in full years instantly.
In Korea, legal and official ages were standardized to 'man-nai' (full international age) in June 2023. Counting age = this year − birth year + 1; year age = this year − birth year.
How to use
- 1
Pick your birthdate.
- 2
Your age in full years appears instantly.
- 3
See the counting age, year age, and days to your next birthday too.
FAQ
Is this tool free?
Yes — it is completely free to use, with no account or sign-up required.
What is this tool?
Calculate your Korean 'man-nai' (full international age) instantly from your birthdate. Korea standardized legal and official ages to man-nai in June 2023; this tool shows that age along with the traditional counting age (this year − birth year + 1) and year age (this year − birth year), plus the days until your next birthday. Everything is processed in your browser, free with no install.