About the Age Calculator
Enter a date of birth to get an exact age in years, months and days, along with the total number of months, weeks, days and hours, the day of the week you were born and a countdown to your next birthday. Change the second date to find someone’s age on any date — past or future.
How does the Age Calculator work?
Age is counted the way people count birthdays: full years first, then full months, then the remaining days. If the day of the month hasn’t been reached yet, a month is borrowed and the days of the previous month are added.
People born on 29 February celebrate on 28 February in common years for the purposes of this calculator.