Age Calculator — How Old Am I?
Calculate your exact age in years, months and days from your date of birth, plus a countdown to your next birthday.
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How old am I, exactly? A birth year alone only tells part of the story: two people born in the same year can be almost twelve months apart in age. This age calculator takes your full date of birth and returns your precise chronological age in years, months and days, calculated against today's date on your device.
Beyond the headline age, the tool breaks your life down into full calendar months, full weeks and total days lived. These counts are what official forms, insurance policies, fitness apps and medical questionnaires often ask for, and counting them by hand across leap years is error-prone — February 29 birthdays and month-length differences are handled for you automatically.
The calculator also looks ahead: it shows the exact date and weekday of your next birthday, how many days are left until it, and the age you will be turning. That makes it just as handy for planning a celebration as for filling in paperwork.
Everything runs locally in your browser. Your date of birth is never uploaded, stored or shared — close the tab and it is gone. Type a date, and the result updates instantly with no button to press.