Birthday Calculator

About

Birthday Calculator is a simple, fun Chrome extension that instantly
calculates everything about your birthday — no login, no permissions,
and completely free.
 
Just enter your date of birth and click "Light the candle":
 
- EXACT AGE: Get your precise age in years, months, and days
- TOTAL DAYS LIVED: See exactly how many days you've been alive
- NEXT BIRTHDAY COUNTDOWN: Find out how many days are left until your
  next birthday, along with the exact date
- DAY YOU WERE BORN: Discover which day of the week you were born on
- ZODIAC SIGN: Your zodiac sign is calculated automatically from your
  date of birth
- FUN ANIMATION: Enjoy a candle-lighting and confetti effect with every
  calculation
 
The extension is lightweight, requires no internet connection or account,
and collects no personal data — everything is calculated locally inside
your browser, on the spot.
 
Whether you want to check your own age, plan a friend's birthday, or
just find out your zodiac sign, Birthday Calculator is one click away.