Birthday Calculator
Next Birthday In
--Days
--
Born On
--
Next Birthday Day
--
Current Age
--
Half Birthday
--
Did You Know?
Your next birthday is calculated by keeping the month and day constant and finding the next occurrence in the future.
$$ \text{Next Age} = \lfloor \frac{\text{Today} - \text{DOB}}{365.25} \rfloor + 1 $$
Leap Year Babies
If you were born on Feb 29, in non-leap years your birthday is typically celebrated on Feb 28 or Mar 1 (this calculator uses Feb 28).