Age Calculator
Exact age in years, months and days — leap years included.
Enter a date of birth to calculate an exact age.
About this tool
Calculate exact age in years, months and days from any birth date, with totals and the next birthday countdown. Leap years handled correctly.
How to use it
- Enter the birth date.
- Set the reference date — today is filled in for you but you can pick any date.
- Read the exact age plus the totals and the countdown to the next birthday.
Frequently asked questions
How are February 29 birthdays handled?
In non-leap years the anniversary is marked on February 28. The exact day count is always based on real calendar days.
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