What happens if I was born on February 29?

In years without a February 29, your birthday is shown on February 28, a widely used convention. The result notes this explicitly.

What if today is my birthday?

The calculator will tell you that your birthday is today rather than showing zero without explanation.

Age, Date & Calendar

Birthday Calculator

Enter your date of birth to find your current age and everything about your next birthday.

Your calculation is performed in your browser.

Enter your date of birth to find your next birthday.

How it works

The calculator finds your current age, then locates the next anniversary of your birth date on or after today, including the day of the week it falls on.

Formula & methodology

Next birthday = the soonest calendar date matching your birth month and day that falls on or after today. If today is your birthday, the countdown shows zero days.

Worked example

Born on July 4, 1995, checked on September 13, 2026: your next birthday is July 4, 2027 (a Sunday), 294 days away, when you turn 32.

Important notes

—People born on February 29 have their birthday shown on February 28 in non-leap years, a common convention noted directly in the result.