What this tool does
Age is calculated using calendar boundaries, so months of different lengths and leap years are handled more accurately than a simple day count.
How to use it
- Enter the values or text requested in the fields above.
- Review the result, which updates instantly or after selecting Generate.
- Copy, share or download the result when that option is available.
Example
A birth date of January 10, 2000 measured on January 10, 2026 equals exactly 26 years.