Here are some of the best Pi Day deals on pizza and pie. Royal Perks members who spend a minimum of $3.14 at Burger King on Pi Day can receive a free slice of Hershey’s Sundae Pie, per Burger King. For the 12th consecutive year, Blaze Pizza guests who order one 11-inch pizza will get a second 11-inch pizza of equal or lesser value for $3.14.

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.