Age Calculator
Enter your date of birth to calculate your exact age in years, months, and days. Also see how many total days you've been alive and when your next birthday is.
Your Age
Total Days
Total Weeks
Total Hours
Next Birthday
This calculator provides estimates and is for informational purposes only.
How Age Is Calculated
Your age is calculated by finding the difference between your birthdate and today's date (or a custom date). The calculator considers variable month lengths and leap years for accurate results.
Frequently Asked Questions
Does this account for leap years?
Yes. The calculator uses JavaScript's Date object which handles leap years automatically. If you were born on Feb 29, your birthday is calculated correctly.
Can I calculate age at a specific date?
Yes. Use the "Calculate Age On" field to enter any date, and the calculator will show your age as of that date instead of today.