How Many Days Until My Birthday? Countdown
Enter your date of birth to count the days, weeks and months until your next birthday, see which weekday it falls on and how old you will turn. Leap-day birthdays are handled.
Born on 29 February? In years without a leap day the birthday is counted on 28 February.
Enter your date of birth to count down to your next birthday.
How many days until my birthday?
Enter your date of birth and this page tells you how many days are left until your next birthday, what day of the week it falls on and how old you will turn. It also breaks the wait down into weeks and days, calendar months and days and weekdays, and runs a live countdown to the hour, minute and second until midnight at the start of your birthday. If your birthday is today, the count shows zero and wishes you a happy birthday.
The tool always looks for the next birthday on or after today, so once your birthday has passed this year it counts to next year's. It works for anyone, from a baby born this year, whose first birthday is next year, to a great-grandparent turning 100.
How to use it
Steps
- Choose My birthday under Count down to; this page opens with it selected.
- Enter your date of birth with the date picker.
- Read the days to go, the date and weekday of your next birthday and the age you will turn.
Born on 29 February
A leap-day birthday only appears on the calendar once every four years. In the other years this calculator counts your birthday on 28 February, the last day of your birth month, which is the date most people celebrate and the one many legal systems use. In leap years such as 2028 it counts 29 February.
The formula
The next birthday is the first anniversary of your birth date that falls on or after today. The age you turn is simply the difference in years:
The days left are the day number of that birthday minus the day number of today, counted in whole calendar days so time zones and daylight saving never change the answer.
Worked examples
- Born on 20 March 1990 and checking on 6 November 2026: the next birthday is Saturday 20 March 2027, when you turn 37.
- Born on 6 November 2000 and checking on 6 November 2026: it is your birthday today and you turn 26.
- Born on 29 February 2000 and checking on 1 January 2027: the next birthday is counted on 28 February 2027, because 2027 is not a leap year.
Fun with the countdown
- Count the sleeps until a child's party; the number of sleeps equals the number of days.
- Plan a surprise by checking which weekday the birthday falls on this year.
- Find your exact age today in years, months and days with the Age Calculator.
Privacy
Nothing is uploaded; every calculation runs in your browser and never leaves your device. Your date of birth is not saved, logged or sent anywhere.
Related tools
The Age Calculator shows your exact age and the day of the week you were born. Count down to any other event with the Days Until Calculator, or add days to a date with the Date Calculator.
Frequently asked questions
How do I find out how many days until my birthday?
Enter your date of birth. The page finds your next birthday on or after today and shows the days to go, the date and weekday, the age you will turn and a live countdown.
What if my birthday is today?
The count shows zero days, tells you the age you turn today and wishes you a happy birthday. From tomorrow it counts to your birthday next year.
I was born on 29 February. When is my birthday counted?
In leap years it is counted on 29 February. In the other years it is counted on 28 February, the last day of February, which is the date most leap-day babies celebrate.
How is the age I turn worked out?
It is the year of your next birthday minus the year you were born. A baby born this year turns 1 on their first birthday next year.
Is my date of birth stored anywhere?
No. The calculation runs entirely in your browser. Your date of birth is not saved, logged or sent to any server, and it is gone when you close the page.
Can I see my exact age as well?
This page focuses on the next birthday. For your exact age in years, months and days, use the Age Calculator.