Leap Day birthday calculator
Count your actual February 29 birthdays
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What Is a Leap Birthday?
A Leap Day birthday is a birthday on February 29. Because February 29 only appears in leap years, someone born on that date has an exact calendar birthday about once every four years.
This calculator separates your normal calendar age from the number of February 29 anniversaries that have actually appeared since you were born.
What Happens in Non-Leap Years?
Many people born on February 29 celebrate on February 28 or March 1 in non-leap years. This calculator does not choose a celebration convention. It counts only exact February 29 anniversaries so the result stays clear and consistent.