VitalisAge Calculator
Find your exact age in years, months and days from any date of birth, plus how long until your next birthday.
How this age calculator works
The calculator counts complete years, then complete months, then remaining days between your date of birth and today (or any date you choose) - the same way you'd count on a calendar by hand, just instantly. It also totals the days and weeks you've been alive and counts down to your next birthday.
Frequently asked questions
How do I calculate my exact age in years, months and days?
Subtract your date of birth from today's date. Count full years first, then the remaining full months, then the remaining days - the calculator above does this automatically and also shows total days and weeks lived.
Why does my age calculation differ by one day on some tools?
Small differences usually come from how a tool handles the current day or month-end dates (like calculating from January 31 to March 1). This calculator counts a birthday as reached on the calendar date itself.