The Age Calculator is a free online tool that calculates your exact age — or anyone's age — from a given date of birth to today's date or any specified date. Unlike simple subtraction, this tool accounts for leap years, varying month lengths and timezone-independent date arithmetic to give you a precise result.

The result is displayed in years, months, weeks and days, making it useful for a wide range of applications — from calculating a person's age for a form, checking if someone meets an age requirement, to curiosity about how old a historical figure would be today.

How to Use the Age Calculator

• Enter the date of birth (day, month, year)
• Optionally enter a target date or leave it as today
• Click Calculate to see the exact age breakdown

Common Uses

• Calculating age for government or legal documents
• Verifying minimum age requirements for services or benefits
• Finding the exact age difference between two people
• Educational and genealogy research

The Age Calculator handles all edge cases including birthdays on February 29 (leap day) and works for any date between 1900 and 2100. It is completely free with no registration needed.