Pi Day: Stop & Shop offers pies for $3.14 on Thursday

Boston Market: With a coupon, get a free Rotisserie Chicken Pot Pie with the purchase of another pot pie and drink at any location. Used in geometry, architecture, construction and other disciplines, Pi is used to calculate the circumference of circles as being 3.1415926535897932384626433832795 times larger than its diameter. 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. All numbers aside, Pi Day also happens to be a great day for foodies, with many restaurants offering discounts on pi (es) in all forms.

Blaze Fast-Fire'd Pizza, 2692 N. Greenwich: Download the new Blaze Pizza app to get a pizza for $3.14.

Whole Foods throughout Bay Area: Large pies will be selling for $3.14 less. You will need to this coupon cod, 19PI, in order to redeem it.

Guests can buy one thin crust pizza and get a second one for $3.14, and members of the Pie Life loyalty club get a $2 reward for their next visit.

The first Pi Day was organized in 1988 at the San Francisco Exploratorium when physicist Larry Shaw had the idea to celebrate the day by marching around a circle and then eating some pies.

On March 14, people across the globe will be celebrating Pi Day! The 2019 Pi Day deal is available for in-store orders only, while supplies last.

If you can't make it to Pizza Pizza or you don't have a location near you, no fear!

Cheddar's Scratch Kitchen: Order one of the restaurant's made-fresh-daily Homemade Chicken Pot Pie and get a second pie free of charge to take and bake at home.

California Pizza Kitchen: Get a slice of Key Lime Pie for $3.14.

Show this Marie Callender's coupon on Pi Day and you'll get a free slice of pie with the purchase of any adult entrée.

Certain pies will be $3, including apple, cherry, peach and pumpkin pies.