🎂 Age Calculator
Find your exact age in years, months and days — plus fun stats about your life so far.
Age Calculator — Find Your Exact Age in Years, Months & Days
How old are you, exactly? Our age calculator computes your precise chronological age from your date of birth — years, months, days, plus total months, weeks, and days lived. It even tells you which day of the week you were born and counts down to your next birthday.
What Is Chronological Age?
Chronological age is simply the exact time elapsed since your birth — the number used on official documents, for school admission, retirement eligibility, and legal age limits. Unlike "biological age" estimates, it is pure math: this age calculator by date of birth does that math down to the day.
Common Uses
- Official forms — get your age in years/months/days for applications.
- Parents — track a child's exact age for milestones and admissions.
- Fun facts — discover how many days, weeks, or hours you have lived.
- Birthdays — see exactly how long until the next one.
Frequently Asked Questions
How is age calculated?
By subtracting your birth date from today's date, borrowing months and days correctly (including leap years) — the same method official records use.
What does "how old am I in days" mean?
It is your total days lived since birth. The calculator shows this alongside weeks and total months.
Does it handle leap years?
Yes — the calculation uses real calendar math, so February 29 birthdays and leap years are handled correctly.
How to use
- Pick your date of birth.
- Click "Calculate My Age".
- See your exact age plus fun lifetime stats.