Age Calculator
Pick a date of birth and this tool returns the age in completed years as of today. It checks the month and day as well as the year, so someone whose birthday has not yet arrived this year is correctly shown as a year younger — the detail that trips up a manual year subtraction.
The calculation uses real calendar dates, so leap years are handled automatically. Everything happens in your browser and the date you enter is not stored or transmitted.
Your result will appear here.