DOBcalc

Birthday Calculator

Everything about your birthday in one card: your exact age, the day of the week you were born, and your next birthday countdown.

Results update instantly — no button needed · Calculated in your local timezone

Select your date of birth to see results instantly

Your birthday, decoded

Enter your birth date and the birthday calculator tells you the weekday you were born on, your exact age in years, months and days, and how many days are left until your next birthday — including which weekday it will fall on.

The fun stats go further: how many leap years and how many full moons you have lived through. Great material for a birthday card or a party quiz.

Planning around a birthday?

The countdown ring shows the days remaining until the next birthday, so you know exactly how much time is left to plan. If your birthday is 29 February, the countdown targets 1 March in common years — your "real" anniversary only comes around every four years.

14

free date & age tools

0

clicks needed for a result

100%

local-timezone accurate

Frequently asked questions

＋What day of the week was I born on?

Enter your birth date and the result card shows the weekday immediately — from "You were born on a Monday" in the highlights to the exact date in the countdown section.

＋How many days until my next birthday?

The countdown shows the exact number of days plus the calendar date and weekday of your next birthday. It updates instantly when you pick your birth date.

＋How is my "half birthday" calculated?

A half birthday falls roughly 182–183 days after your birthday. The total-days stat card gives you the precision you need — half your days alive added to your birth date is the exact half-birthday moment.