Age Calculator

Find your exact age in years, months and days — plus total weeks, days, hours and a countdown to your next birthday.

Date of birth Age at date

How age is calculated

The calculator counts full calendar years first, then full months, then the remaining days — the same way ages are used on official forms, school admissions, job applications and insurance documents.

More date tools

Also try the Date Difference calculator, Workdays Calculator and Countdown tools for planning and scheduling.