Age Calculator
Calculate your exact age in years, months, and days — plus totals and next birthday.
Enter birth date
Results will appear below the button.
Frequently Asked Questions
How accurate is this age calculator?
It uses actual calendar month lengths and accounts for leap years when converting months and days. Totals like hours and seconds are derived from full days between dates.
Will my date of birth be stored?
No. All calculations run locally in your browser; nothing is uploaded.
Which weekday is my next birthday?
The calculator shows the exact weekday and the number of days remaining until your next birthday.
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