Use this free birthday calculator to find the weekday you were born, your next birthday date, and how many days are left until it.
How to use this birthday calculator
Enter your date of birth and press Find My Next Birthday. The result shows the weekday you were born, your next birthday date and weekday, the days remaining, and the age you will turn.
Common uses
Plan birthday parties, track milestone birthdays like 18, 21, 30, 40, and 50, or count down to a family member birthday.
Example
If you were born on 15 January 2000, you were born on a Saturday.
Frequently asked questions
What about February 29 birthdays?
For leap day birthdays, the next birthday is shown on the date your browser calculates for non-leap years.
Is my data stored?
No. The calculation runs in your browser.