Age
Exact Age Calculator
Your age in years, months and days, plus days lived and your next birthday.
Open tool →Age
Birth Date from Exact Age
Find birth dates consistent with an age in years, months and days.
1
Your dates
On this deviceYour dates are remembered here for 30 days. No account needed.
2
Your story in numbers
Every date has a story.
Enter your dates to discover your result and the next dates worth keeping.
Understanding your result
An exact calendar age can correspond to more than one birth date around month ends. All dates matching your years, months and days are listed; the tool does not invent a unique date when the information is ambiguous.
See a worked example
Illustrative example, as of September 13, 2026.
- Years
- 35
- Complete months
- 3
- Remaining days
- 28
May 16, 1991
Are my dates sent to a server?
Calculations run in your browser. Your dates stay on this device unless you choose to include them in a sharing link or image. “Clear my dates” removes them from local storage.