How do I calculate my exact age?

Enter your date of birth in the calculator above and click Calculate Age. The tool will show your exact age in years, months, and days, along with your total days lived and a countdown to your next birthday.

How are leap years handled in the age calculation?

Leap years are handled automatically. If you were born on February 29, the calculator uses March 1 as your birthday in non-leap years when counting age milestones.

Can I calculate how old I will be on a future date?

Yes. Use the 'Age on a specific date' section to enter any future or past date and see how old you were or will be on that day.

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🎂 Age Calculator

Calculate your exact age in years, months, and days — plus next birthday countdown.

🎂

Enter Birthday

DATE OF BIRTH

CALCULATE AGE AS OF

Leave as today or enter any date

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Result

Enter your date of birth above and click Calculate Age.

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About This Calculator

This calculator determines your exact age using your browser's date engine. It correctly handles leap years, month-length variations, and daylight saving time. You can also calculate how old you were or will be on any specific past or future date using the "As of" field.

🎂 Handles leap years

📅 Past & future dates

✓ Zero server transmission