Age Calculator
Math & EverydayFind exact age in years, months, days and total days lived.
Runs entirely in your browser — nothing is uploaded
Features
- Exact age broken into years, months and days.
- Totals in months, weeks, days, hours and minutes.
- Countdown to the next birthday and the weekday you were born on.
- Measure against any target date, not just today.
How to use the Age Calculator
- 1Pick your date of birth.
- 2Optionally change the "age at" date.
- 3Read the full breakdown and next-birthday countdown.
Frequently asked questions
How are leap years handled?
Calendar arithmetic counts real elapsed days, so 29 February and leap years are handled exactly.