About the Age Calculator
Find your exact age in years, months and days, with totals in weeks, days and hours, and a countdown to your next birthday.
How to use
- Pick your date of birth. The "Age on" date defaults to today.
Frequently asked questions
How do I calculate my exact age?
Enter your date of birth. The calculator counts full years, then remaining months and days up to today or any date you choose.
Can I calculate age on a specific date?
Yes. Change the "Age on" date to any past or future date.
How are leap years handled?
The calculator uses real calendar dates, so leap years and different month lengths are counted correctly.