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

March 14 is celebrated as Pi Day because the date, when written as 3/14, matches the start of the decimal expansion 3.14159… of the most famous mathematical constant. By itself, pi is simply a number, ...

Pi Day is celebrated every year on March 14, honouring the significance of the mathematical constant π and its applications ...

Saturday's Google Doodle celebrates everyone's favorite math holiday, Pi Day.

Mar. 16—ROYERSFORD — More than 250 sixth-grade students at Spring-Ford Intermediate School put their memories to the test during this year's Pi Day competition, creating a record-setting celebration ...

WASHINGTON (7News) — It's Friday, March 14 —3/14, the day that every math nerd eagerly anticipates each year. Known around the world as "Pi Day," it’s a time to celebrate one of mathematics' most ...