SAN FRANCISCO -- Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign Pi. That's because the date written numerically ...

Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or 3/14 — the first three digits of an infinite number with many practical ...

Pi is actually an irrational number that is most often approximated with the decimal 3.14. It's a special day for those who love mathematics and want to honour Albert Einstein. March 14 every year is ...

Pi Day 2026: March 14 is celebrated every year as Pi Day to commemorate the Mathematical constant Pi. The day also marks the birth anniversary of physicist Albert Einstein and is observed as a ...

A freshly decorated Key Lime pie rests on a counter in a busy bakery kitchen at Michele's Pies, Wednesday, March 13, 2024, in Norwalk, Conn. Math enthusiasts and bakers celebrate Pi Day on March 14 or ...