Happy Pi Day 2025! Wohoo! That’s right, it’s March 14, which can be written as 3/14, which also happens to be the first three digits of pi (3.14!). And while there are plenty of ways to celebrate, some stores and restaurants and such are using it to give you good deals on Friday,

March 14 — a day you’re more likely than most others to eat — or throw — a pie and get a reduced price on your pizza. It’s all in celebration of pi (Greek letter π), the mathematical constant and infinite number whose first three digits are 3.14.