Age Calculator
Find your exact age in years, months and days — plus a countdown to your next birthday.
Your Details
0 years
0 months, 0 days
Born On—
Total Days Lived0
Total Weeks Lived0
Total Months Lived0
Next Birthday—
Days Until Next Birthday0
How Age Is Calculated
This calculator counts the exact number of full years, months and days between your date of birth and today (or any date you choose), the same way age is counted on official U.S. forms.
Frequently Asked Questions
Does this account for leap years?+
Yes. The calculator uses actual calendar dates, so leap years (like February 29) are automatically accounted for.
Can I calculate age as of a future or past date?+
Yes — use the optional "Calculate Age As Of" field to see age as of any date, not just today.