Pi Day is celebrated every year on March 14 (3/14), matching the first digits of π = 3.14.

Since you seem to want a quick scoop, here’s the fast context:

  • Date: March 14, every year.
  • Why that date: In month/day format, 3/14 lines up with the first three digits of pi, 3.14.
  • Extra nerdy note: It’s also Albert Einstein’s birthday, which lots of math and science fans like to point out.

So, if you’re planning ahead: next Pi Day is on March 14 this year, and people typically celebrate with circular desserts, pi-digit contests, and other mathy fun.