National Pi Day on March 14 Serves Up Deals on Pizzas, Pies

National Pi Day on March 14 celebrates the mathematical constant pi (π). It's a day to score deals on pies, pizza pies, and other food treats.

Pi Day deals include $3.14 pizzas, slices, breadsticks, and side dishes at restaurants like 7-Eleven, Anthony's Coal Fired Pizza, BJ's, Blaze Pizza, Burger King, and more.

Get a free slice of pie or money off pie purchases at businesses including Goldbelly, Grand Traverse Pie Company, Marie Callender's, Papa Murphy's, Tiny Pies, and Village Inn.

Enter contests for a chance to win pie-related prizes from Keebler and Tombstone Pizza and New Belgium's limited-edition Voodoo Ranger pizza beer made for National Pi Day.

Pi Day deals last just for March 14 at some places, through the March 14-17 weekend at others, and extend weeks or even months longer at a few businesses.