Exact Age & Birthday Calculator
Calculate your exact age in years, months, days, and seconds. Find out exactly how many days remain until your next birthday.
Chronological Precision
Need to know exactly how old you are for a legal document, or just curious how many thousands of days you've been alive? This calculator uses precise chronological algorithms, accounting for leap years and irregular month lengths, to give you an exact breakdown of your age right down to the second.
Why Use Our Age Calculator?
- High Precision: Breaks age down into Years, Months, Weeks, and Days.
- Next Birthday: Includes a countdown to your next upcoming birthday.
- Total Privacy: Your Date of Birth is never logged or sent to a server.
- Historical Tracking: Can be used to find the age of historical figures.
How to Use the Age Calculator
Select your Date of Birth from the calendar picker.
The 'Target Date' is set to Today by default (you can change it).
Click 'Calculate Age'.
Review the granular breakdown of your life.
Frequently Asked Questions
Yes, the underlying JavaScript Date engine accurately accounts for the extra day in February during leap years.
Absolutely. Just enter the date of construction as the 'Date of Birth'.
All file processing is performed locally in your web browser. We do not upload, store, or view your data.