Age Calculator
Find your exact age from any birth date — in years, months and days, plus the total day count and how long until your next birthday.
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How to Use the Age Calculator
- Enter the date of birth.
- Press Calculate (or it updates automatically).
- Read your exact age and upcoming birthday countdown.
Popular Uses
- How old am I today?
- Age on a future date
- Days since birth
- Next birthday countdown
- Age in months for a baby
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Frequently Asked Questions
How is exact age calculated?
The calculator compares the birth date with today’s date, borrowing months and days like subtraction, so leap years and varying month lengths are handled correctly.
Does it account for leap years?
Yes. Because it works with real calendar dates, February 29 birthdays and leap years are handled accurately.
Can I calculate age on a specific past or future date?
This version calculates age as of today. For age on another date, use the Date Difference Calculator with the birth date and the target date.
Why does my age in days matter?
Total days lived is a fun milestone (10,000 days is about 27.4 years) and is sometimes needed for official forms or insurance calculations.