Age Calculator
Calculate your exact age in years, months and days from your date of birth.
About this tool
The Age Calculator determines a person's exact age from a given birth date, calculating complete years, months, and days up to today. The result updates automatically and correctly accounts for leap years.
To use it, select or enter the birth date in the date field. The calculated age appears instantly, with no need to confirm. The tool displays the result in years and can also detail months and days for those who need greater precision — useful in contexts where weeks or individual days matter.
Use cases include: quickly verifying an age to fill out forms, checking whether a child has reached the minimum age for a school or sports activity, calculating a patient's age for medical records, finding out how many days remain until a milestone birthday, determining eligibility for benefits that require a specific minimum age, or simply satisfying the curiosity of "exactly how many years and months old am I today."
All processing happens in the browser. The date you enter is not stored or transmitted — everything stays on your device. The tool is free and works on phones, tablets, and desktops.
Frequently asked questions
Is the age calculator free?
Yes, completely free.
Is the date I enter sent to any server?
No. The calculation is done locally in your browser. No data is transmitted.
Does it work on mobile?
Yes. The interface is responsive and works in any modern browser.
Does the tool account for leap years?
Yes. The calculation uses JavaScript's native date APIs, which handle leap years correctly.
Can I calculate the age of any person, not just myself?
Yes. Simply enter any birth date you want.