Royal Perks members can get a free slice of Hershey’s pie on Pi Day when they spend more than $3.14.

Pi day is Friday, March 14 and you can get special food deals on pizza and desserts from several national chains.

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.