About This Calculator
This Birthday Countdown Calculator shows how many days are left until your next birthday. Enter your birth date to see the countdown instantly.
How It Works
The calculator compares today’s date with your upcoming birthday. If your birthday has already passed this year, it counts the days until your birthday next year.
Days Remaining = Next Birthday − Today’s Date
Frequently Asked Questions
Is the countdown accurate?
Yes, it uses real-time date calculations to return the exact number of days remaining.
What if my birthday has already passed?
The calculator automatically shifts to your birthday in the next calendar year.
Does it handle leap years?
Yes, the logic fully supports leap years when calculating the next birthday.