How does the age calculator work?

Enter your date of birth and it calculates your exact age down to the second using the current date.

Does it show days until my next birthday?

Yes, it shows exactly how many days are left until your next birthday.

Yes, completely free with no sign-up or data storage.

Date of Birth

Years

Months

Weeks

Days

Hours

Minutes

Seconds

Days Until Your Next Birthday

Select your date of birth using the date picker.
Your exact age is calculated instantly in years, months, weeks, days, hours, minutes, and seconds.
Check the days until your next birthday to start planning your celebration.

Age is calculated by finding the difference between the current date and your date of birth, accounting for leap years and month lengths.

Yes, the calculator uses JavaScript's Date object which correctly handles leap years and varying month lengths.

No. Everything runs in your browser. Once you leave the page, your data is gone.