- It's Pi Day, an annual celebration of the mathematical constant, which is the ratio of a circle's circumference to its diameter.
To celebrate the number, and pie, restaurants and chains across the country offer deals for pie. The promotion runs both March 13 and March 14. Pi Day is observed on March 14 since 3, 1, and 4 are the first three significant digits of π.
Cantina Laredo - Take $3.14 off a Mexican Apple Pie.
You need to download or print a coupon and purchase one full-priced adult entree to get the free pie slice.
An apple pie for Pi Day. Just bring a coupon with you and enjoy.More news: Sanders Won't Say Whether Trump Really Thinks Democrats 'Hate' Jews
More news: Lori Loughlin Released on $1 Million Bail, Allowed to Travel for Work
More news: Trump blasts 'fake news' over Melania body double theory
Villa Italian Kitchen is offering one Neapolitan Cheese pizza at the special price of $3.14 with coupon.
Pieology Pizza: Buy one artisan thin crust pizza, get another for $3.14.
The 8-inch Margherita pizzas being offered for $3.14.
On Thursday, March 14, BJ's dine-in guests can order a mini one-topping pizza for only $3.14.
For Pi Day, Toast Kitchen + Bakery is offering all pie slices and Pice Cream sandwiches for $3.14.
And, if you're not in the mood for pizza, it's also National Potato Chip Day.
Get two slices for $3.14 at at all locations except 85th, Juanita and Valley. If that isn't enough, customers who purchase a whole pizza pie in-store will receive 314 7Rewards bonus points when they scan the 7-Eleven app at checkout-which you can use for more pizza, of course.