Age Calculator
Exact age in years, months, days — plus total days lived.
How your age is calculated
Enter your date of birth and the tool computes your exact chronological age in years, months and days, your total days lived, and the countdown to your next birthday — correctly handling leap years and month lengths.
Common uses
Exact age matters for school admissions, visa and job applications, insurance quotes and eligibility cut-offs, where "age on a specific date" is required rather than just the birth year.
Frequently asked questions
How are leap years handled?
The calculation walks real calendar dates, so February 29 birthdays and leap years are handled exactly.
Can I calculate age at a past or future date?
Yes — change the "as of" date to any date you need.