Age Calculator — Exact Years, Months, Days & Total Days

Enter a birth date and get your exact age in years, months, days, and total days lived. Calculate age as of any date. Accounts for leap years automatically.

Keywords: age calculator, date of birth, how old am i, age in days, age in months, birthday calculator

Frequently Asked Questions

How is age calculated?

We calculate the difference between your birth date and the selected "as of" date.

Can I calculate age for a past date?

Yes, choose any "as of" date to calculate age at that time.

Does it account for leap years?

Yes, date calculations consider leap years automatically.