Free Online Tool
Age Calculator
Select your date of birth to calculate your exact age instantly.
Your exact age
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How the Age Calculator Works
The calculator compares your date of birth with today's date. It counts completed years first, then completed months, and finally the remaining days.
It also estimates your total number of months, weeks, and days lived, along with the number of days remaining until your next birthday.
Common Uses for an Age Calculator
You can use an age calculator when completing forms, checking eligibility requirements, planning birthdays, calculating school ages, or confirming retirement and insurance dates.
It is also useful whenever you need a more exact result than simply subtracting one birth year from another year.
Frequently Asked Questions
How is exact age calculated?+
Exact age is calculated by counting completed years, months, and days between the birth date and the current date.
Why is my age not just the difference between the years?+
Subtracting the birth year from the current year can be inaccurate if your birthday has not happened yet this year.
Can I enter a future date?+
No. The calculator only accepts birth dates that are today or earlier.
Is the calculation private?+
Yes. The calculation runs directly in your browser, and the entered birth date is not submitted through this calculator.