Pi Day,” which is March 14, 3.14, is a day meant to recognize the special, infinite number that can also be recognized by its symbol π. Pi is an irrational number, which means it goes on ...

What is Pi Day? Whether you love math or you're just into some good dessert, this Saturday should be a sweet treat for you.

Explore the origins of Pi Day from San Francisco's Exploratorium to global recognition, blending math, culture, and pie in a ...

While most in New England may be anticipating March 17, Saint Patrick's Day, there's another more mathematical holiday to celebrate first. Pi Day is celebrated annually on March 14, because its ...

Today is Pi Day for 2026, the universal celebration of an amazing, mysterious, and irrational mathematical constant. What's ...

LOS ANGELES — Math nerds and dessert enthusiasts unite to celebrate Pi Day every March 14, the date that represents the first three digits of the mathematical constant pi. Representing the ratio of a ...

Whether using 3.141 or the record-holding 314 trillion–digit calculation announced in December 2025 by Storage Review Lab director Kevin O'Brien, every representation of π is still an approximation.