Enter date of birth
Enter your date of birth using the date picker.
CALCULATORS · FREE ONLINE TOOL
Age Calculator
Find your exact age in years, months and daysHow old are you, exactly? Not the rounded number you write on forms, but the real figure: years, months, days, and every hour since you were born. Pick your date of birth and this calculator answers in one click.
// AGE CALCULATOR · GET STARTED
Use Age Calculator
Find your exact age in years, months and days
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Defaults to today. Change it to find your age on any past or future date.
Pick your date of birth above and your exact age will appear here.
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How to use the Age Calculator
Pick the target date
Leave the "age at" date as today, or pick any other date you want to check.
See your exact age
Read your exact age, totals, birth weekday and next birthday countdown.
// AGE CALCULATOR · ABOUT THIS TOOL
About the Age Calculator
Knowing your exact age matters when a form asks for years and months or a school uses a cutoff date. This calculator counts age the way people do by hand, so the answer is exact.
You also get total days lived, your birth day of the week, and a countdown to your next birthday, all computed privately in your browser.
Where it helps most
Ages in the exact format the form demands.
School admissions
Eligibility often hinges on your age on a specific cutoff date, not your birthday, so get the exact figure instead of counting on your fingers.
Visa forms
Immigration paperwork asks for age in years and months, computed instantly and accurately without finger-counting any leap years, or second-guessing the math.
Milestone birthdays
The next-birthday countdown shows exactly how many days remain until the big day, handy when booking a venue or flight months ahead.
Retirement planning
Enter a birth date and a target age to find the exact date that age is reached, whether for retirement or a pension date.
Calculating well
More than one number.
Total breakdowns
See your age in total months, total weeks and total days, plus the day of the week you arrived on.
Any reference date
Check your age as of any past or future reference date, not just today, for forms that ask about a specific cutoff.
Leap years handled
Month lengths, year boundaries and leap years are all handled behind the scenes, which is exactly where manual counting always goes wrong.
Age Calculator: private by design
The math happens instantly in your browser, so your date of birth never leaves your device.
Age Calculator FAQs
Your exact age is the time between your date of birth and today's date, broken into years, months and days. The tool counts full years first, then the remaining months, then the leftover days, handling different month lengths and leap years automatically.