Age Calculator
Calculate your exact age in years, months and days, plus total weeks and days lived and the days until your next birthday.
Runs in your browser Free · No sign-up
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How to use the Age Calculator
- Enter the date of birth.
- Optionally change the “Age on” date (today by default).
- Read the age in years, months and days and the extra statistics.
About this tool
Enter a date of birth to see the exact age today or on any other date – useful for forms, eligibility checks or just curiosity. Leap years and different month lengths are handled correctly.
- Private: your data is processed on your device and never uploaded.
- Free with no account, limits or watermarks.
- Fast: results appear instantly, even offline once the page has loaded.
Frequently asked questions
How are people born on February 29 handled?
In years without February 29, the next birthday is counted on February 28.
Why can the number of months and days differ from other calculators?
Months have different lengths. This calculator counts full calendar months first and then the remaining days, which is the most common method.
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