Age Calculator
Work out an exact age in years, months and days, and how long until the next birthday.
Runs entirely in your browser.
Calculate Age from Date of Birth
About Age Calculator
Age is counted the way people say it: whole years first, then leftover months, then leftover days. That is not the same as dividing the total day count by 365 - months differ in length and leap years add a day, so the calendar method is the one that matches a birth certificate.
The total-days figure is also shown, because it is what you want for anything measured in days rather than birthdays.
Other Date Tools
- Date Calculator — difference, arithmetic and age on one page
- Date Difference — the span between two dates
- Add or Subtract Days — date arithmetic
- Leap Year Checker — is a year a leap year, and why
- Day of the Week — weekday, day of year and ISO week
- Unix Timestamp — epoch seconds to and from a date
- Time Converter — seconds, minutes, hours, days, weeks
