Age Calculator

Calculate your exact age in years, months and days — completely free.

Date of birth

Calculate age on

Your exact age

—

—Total years

—Total months

—Total weeks

—Total days

Day of birth—

Next birthday—

Days until next birthday—

Birth date—

About this Age Calculator

Enter your date of birth and a calculation date to find your exact age. The calculator accounts for different month lengths and leap years and also shows your next birthday.

This tool runs in your browser, so your date of birth does not need to be uploaded to a server.

Frequently Asked Questions

How is exact age calculated?

The calculator compares the birth date with the selected calculation date and works out the complete years, remaining months and remaining days.

Can I calculate age for a past date?

Yes. Change “Calculate age on” to any date on or after the date of birth.

Does it support leap years?

Yes. The calculation uses calendar dates and correctly handles leap years and varying month lengths.

Is this age calculator free?

Yes. All otoUP tools are free to use.