Age Calculator

100% local v1.0.0

Your exact age from a birth date, with days lived and the next birthday.

Dates

Date of birth

As of

Result

Age —

—Days lived

—Weeks lived

—Months lived

Next birthday —

Day of the week born —

Born on 29 February? In a common year the birthday falls on 1 March: a period that would end on a day the month does not have ends with the month's last day, so the new age starts the day after.

Other age counts

Year age —

Counting age —

Since 28 June 2023, Korean law counts age in full years from birth unless a statute says otherwise (Framework Act on Public Administration, Article 7-2). Year age (current year minus birth year) and counting age (year age plus one) are for reference.

Counting age starts at 1 at birth and adds a year every 1 January. Ages under Japanese law are full ages, as in the result above.

About this tool

Work out an exact age in years, months and days, the days lived so far and the countdown to the next birthday. Runs in your browser.

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