birthdaycalculate

Another year, all yours

Here’s to a year
worth celebrating.

A cheerful little look at the years you have lived, the one on its way, and the milestones still to come.

Birthday calculator: how many days until my birthday?

Start with your birthday

Let’s see what’s
on your horizon.

Your date stays in this browser tab. No account and no server upload.

Private by design. The date math happens locally on this device.

Your next little milestone is waiting here.

Add your birth date to see your age today, the countdown to your next birthday, and a few future milestones.

Calculate how many days until your birthday

Wondering “how many days until my birthday?” Enter your full date of birth and select Count it up. This birthday calculator finds your next birthday, counts the calendar days from today, and shows your current age and the age you will turn.

Birthday calculator questions

Does the birthday countdown include today?

The countdown measures calendar days between today and your next birthday. If your birthday is today, it shows Today. If it is tomorrow, it shows one day to go.

How is my age calculated?

Your age is the number of birthdays you have already reached. Your upcoming age appears as number candles on a birthday cake. The results also list future milestone birthdays such as 18, 21, 30, and 40.

What if I was born on February 29?

Leap-day birthdays fall on February 29 in leap years. This calculator uses March 1 in non-leap years.

What is my zodiac sign?

Your results also show your Western sun sign, its usual birthday date range, and a short traditional description. Explore all 12 zodiac signs and their dates. Astrology is offered for entertainment, not as a scientific personality assessment.