Korean Age Calculator

Korean age (만 나이) only increases after your birthday has passed, and has been the official standard for most Korean laws since June 2023. Year age (연 나이) is simply the current year minus your birth year regardless of whether your birthday has passed, and is still used in laws like the Military Service Act. Counting age (세는 나이) is the traditional system where you're already 1 at birth.

Korean age is the official standard for everyday life and most laws, but some laws — like the Military Service Act and Juvenile Protection Act — still use year age, so it depends on the context.

No. All calculations happen entirely in your browser and nothing is sent to or stored on a server.

No result is shown for a date later than today. Please enter your actual birth date.

It's the current year minus your birth year, minus 1 if your birthday hasn't happened yet this year.