How to use & example
- Enter a date of birth.
- Choose the date you want to calculate age on.
- View complete years, months, remaining days, and total days.
Example
A person born on June 15, 2000 is exactly 26 years old on June 15, 2026.
Calendar months have different lengths, so age is not calculated by dividing total days by a fixed month length. This utility does not determine legal age or eligibility.
Questions
How are month-end birthdays handled?
For a comparison month without the birth day, the anniversary is clamped to that month’s final day. For example, a January 31 birthday reaches one month on February 28 in a non-leap year.
Does this calculate a legal age?
This is a calendar arithmetic tool. Legal age rules, including rules for leap-day birthdays, may differ by jurisdiction.