Get calendar age plus total elapsed months, weeks, and days without averaging month lengths.
Exact age-
Method
Calendar arithmetic method
Date-only calculations use Gregorian calendar boundaries instead of averaging months into a fixed number of seconds. Month and year additions clamp to the last valid day when necessary.
Business-day results exclude Saturday and Sunday. Public holidays are not excluded because they depend on country, region, employer, and year.
Questions
Age Calculator FAQ
How is exact age calculated?
The calculator counts completed calendar years, then completed months, then remaining days.
How are February 29 birthdays handled?
Calendar age follows actual dates. In non-leap years, legal birthday conventions can vary by jurisdiction.
