Birthday Calculator

Calculate upcoming birthdays and milestones. Enter your date of birth to see your current age, the days until your next birthday, the day of the week you were born, and notable age milestones.

Enter your date of birth to calculate your exact current age, how many days until your next birthday, the day of the week you were born on, and a list of upcoming age milestones.

Current age
Days until next birthday
Day of week born

A birthday calculator reveals more than your age — it shows exactly how old you are to the day, how long until your next birthday, the weekday you were born on, and the milestone birthdays still to come.

How it works

  • Age = full years elapsed since birth, accounting for whether this year's birthday has passed
  • Next birthday = days to the next anniversary of your birth date
  • Day of week = computed from the calendar date of birth

Examples

  • Born 15 Jun 1995 on a Thursday
  • See exactly how many days until you turn the next age
  • Plan ahead for milestone birthdays like 18, 21, 50 and 100

Frequently asked questions

Is my age calculated precisely?

Yes — it counts full years since your birth date, so it only ticks over once your birthday has actually passed this year.

How are milestones shown?

Upcoming round-number birthdays (such as 18, 21, 30, 50, 100) are listed with the date they fall on, so you can plan celebrations in advance.

Just for the giggles, much love.
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