About AgeCalculatoor
AgeCalculatoor is a free website for age and date calculations. It offers 13 tools, including an age calculator, birthday calculator, age difference calculator, date calculator and business days calculator.
Every calculation runs entirely in your browser. Your dates are never sent to a server, and the site needs no sign-up. The homepage offers optional family profiles, which are stored only in your own browser's local storage and can be deleted at any time.
Results use exact Gregorian calendar arithmetic, with February 29 birthdays counted on February 28 in non-leap years. Last updated: 21 October 2026.