Age Calculator
Calculate your exact age between two dates. Find out how many years, months, and days you have lived, plus total days, weeks, and your next birthday countdown.
Date of Birth
Your Age
How Age Is Calculated
The age calculator determines your chronological age by comparing your date of birth to the target date. Years, months, and days are calculated precisely, accounting for leap years and varying month lengths. Total days counts all days elapsed including leap days.
About this Calculator
The Age Calculator is a free, easy-to-use tool for birthday, years, months. Simply enter your values and get instant, accurate results — no signup required. All calculations run locally in your browser, so your data stays completely private.
Privacy Note: All calculations are performed locally in your browser. No data is ever sent to a server or third party.