Welcome to BirthdayCalculus.com! Discover fun facts about your birthday with our easy-to-use tools. Find your Age, calculate your Half Birthday, or count down to your next celebration with the Birthday Countdown. Learn cool stuff like how rare your birthday is (Birthday Rarity), your Angel Number, or your Birthday Star. Explore special days like Golden, Platinum, Diamond, or Galactic Birthdays. Curious about traditions? Try the Islamic or Korean Birthday Calculators. Check love matches with Twin Flame or Love Compatibility tools. Unlock secrets with Soul Urge Numbers or Tarot Card readings. Solve puzzles like the Birthday Problem or find your Pi Birthday.