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Find your exact age in years, months and days, and the days until your next birthday.
How the calculation works
Enter a date of birth and, if you want, a different date to calculate the age on. The calculator counts whole years, then months, then days, and shows totals as well.
Formula used
Age = (age-on date) − (date of birth), counted in years, months and days
Example
Someone born on 15 March 1990 is 36 years, 6 months and 28 days old on 13 October 2026.
Frequently asked questions
Does it handle leap years?
Yes. It uses real calendar dates.
Can I find age on a past date?
Yes. Change the second date.
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Results are estimates for general information only and are not professional financial, medical or legal advice.