Age Calculator

Calculate your exact age in years, months and days.

Enter your birth date and get your exact age plus next birthday countdown.

Date of birth

Select your date of birth.

How to use Age Calculator

1
Enter your date of birth in the date field.
2
Your exact age appears instantly in years, months and days.
3
View additional stats: total days, weeks, months and hours lived.
4
See how many days until your next birthday.

Practical guide: Age Calculator

Why use this tool?

Knowing your exact age in years, months and days is useful for administrative forms, retirement calculations, birthdays and medical check-ups. This tool precisely calculates your age as of today, the total days and weeks lived, and shows how many days until your next birthday.

In certain legal contexts (retirement, legal majority, voter eligibility), age is calculated in completed years — precisely what this tool provides.

Privacy and limits

Your date of birth is processed locally in your browser. It is neither transmitted nor stored. You can use any date of birth without any privacy risk.

Age Calculator is designed to be free, fast and available without creating an account. It suits freelancers, students, marketing teams, developers and small businesses that need to handle a task efficiently.

Best practices

The tool accounts for leap years for accurate results.
To calculate age at a past or future date, adjust today's date manually.
Medical and administrative forms often ask for age in completed years — that is exactly what this tool provides.

Related searches: age calculator, how old am i, age calculator by date of birth, birthday calculator, age in days calculator.

Frequently asked questions

How is the age calculated exactly?⌄

Age is calculated by subtracting the birth date from today, accounting for leap years and varying month lengths. The result in years, months and days is accurate to the day.

Does the tool account for leap years?⌄

Yes. The calculation uses real Gregorian calendar dates, which automatically includes leap years.

Can I calculate someone else's age?⌄

Yes. Simply enter their date of birth. The tool stores no data.

Does it work offline?⌄

The calculation runs entirely in your browser. No internet connection is needed once the page loads.