Age Calculator
How to Use Age Calculator
1
Enter Your Date of Birth
Pick your date of birth from the calendar. You can also choose a different "as of" date to calculate age at any point in time.
2
View Your Exact Age
Instantly see your age in years, months, days, weeks, hours, minutes, and total seconds.
3
Check Your Next Birthday
See exactly how many days are left until your next birthday with a handy countdown.
Key Features
Precise Age Breakdown
Get your age in years, months, days, weeks, hours, minutes, and total seconds all at once.
Flexible "As of" Date
Calculate your age as of today or any custom date in the past.
Birthday Countdown
Know exactly how many days remain until your next birthday celebration.
Birthday Celebration Alert
A special birthday message appears when today is your birthday.
100% Client-Side Calculation
Everything runs locally in your browser. No data is stored or transmitted.
Frequently Asked Questions about Age Calculator
We calculate the exact difference between your date of birth and the "as of" date, accounting for calendar months and leap years.