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Age CalculatorBeta

Enter your date of birth and a reference date to get your exact age broken down into years, months and days, plus the countdown to your next birthday.

Result

Enter your date of birth to see the result.

How to use

Pick your date of birth and your exact age as of today appears. If you need your age on another day, change the reference date. The result also breaks your age down into years, months and days, shows the days until your next birthday, and which day of your life it is.

How exact age is calculated

Subtract your birth year from the current year, then subtract one more if your birthday has not come yet this year. Your age goes up on the birthday itself. For example, someone born on September 21, 2000 is 25 on September 20, 2026 and 26 from September 21. Anyone born on February 29 is treated as turning a year older on March 1 in years that have no February 29.

Frequently asked questions

How is exact age calculated?

Subtract your birth year from the current year, then subtract one more if your birthday has not happened yet this year. Your age goes up on the birthday itself. For example, someone born on September 21, 2000 is 25 on September 20, 2026 and 26 from September 21.

If I was born on February 29, when do I get older in a common year?

Common years have no February 29, so this calculator adds a year on March 1. In leap years your age goes up on February 29 itself.

Can I change the reference date?

Yes. Enter any date as the reference date to see your exact age on that day, for example on a school entry date, a start date at work or a contract date.

Is my date of birth sent to a server?

No. Your date of birth is not collected, and the calculation itself runs in your browser.