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

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.

For two days only, on March 13 and 14, CPK Rewards members can get an Original BBQ Chicken, Pepperoni, or Traditional Cheese pizza for $3.14 with any purchase of $25 or more. Non-members can enroll in CPK Rewards on CPK.com or on the CPK app anytime through March 14 to get the deal, which is available for dine-in, takeout or delivery.