Age Calculator — Exact Age in Years, Months & Days
Free age calculator. Find your exact age in years, months and days, total days lived, the weekday you were born and days to your next birthday.
Runs in your browser — your data is never uploaded.
Enter a date of birth and this calculator shows your exact age in years, months and days. It also gives the total months, weeks and days lived, the day of the week you were born, and a countdown to your next birthday. You can pick any “as of” date to find age at a past or future date.
How to use the Age Calculator
- Enter the date of birth.
- Optionally change the “age at” date.
- Read your age and birthday countdown.
Age Calculator — frequently asked questions
How is age calculated?
By counting complete years, then remaining months and days between the birth date and the chosen date.
Can I find age on a specific date?
Yes. Change the “age at” date to any past or future date.
Does it handle leap years?
Yes, the calculation uses real calendar dates.
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