Age Calculator

How to use the Age Calculator

1. 01
   Enter your date of birth. Pick the birth date from the date picker.
2. 02
   Set the "age at" date. Defaults to today, but you can compute your age on any date.
3. 03
   Read the breakdown. Exact age in years, months and days, plus totals and your next birthday.

How is it calculated?

We compute the difference between the two dates calendar-aware: full years, then remaining months, then days, borrowing from the previous month's length when needed. Totals (months, weeks, days) come from the raw day count between the dates, and the next birthday counts forward to the next occurrence of your birth date.