Age Calculator
Enter a date of birth to find the exact age in years, months and days.
Frequently asked questions
What's the difference between "Exact Age" and "Total Days Lived"?
Both describe the same span, just in different units — Exact Age breaks it into a calendar-style Years/Months/Days figure, while Total Days Lived is the plain day count. They're computed from the same date range, so they'll never disagree with each other.
What happens if the date of birth is February 29th?
In a non-leap year, the birthday resolves to March 1st — so on February 28th of a non-leap year the calculator will show the birthday as not yet arrived, and by March 1st it will show as just completed. This keeps the age figure and the "next birthday" figure consistent with each other.
Can I calculate age on a future date instead of today?
Yes — change the "Age as of" field to any date, past or future, to see the age as of that date. This is useful for planning ahead, such as checking someone's age on a specific upcoming event date.