National Pi Day is March 14 (3.14) and restaurants across the country are celebrating with pizza deals, dessert specials, and limited-time discounts. If you love pizza and sweet treats, this is one of the best food deal days of the year.

Many popular chains are offering $3.14 specials, BOGO pizza offers, and discounted desserts for one day only.

Here are some popular Pi Day deals available nationwide:

Pizza & Food Deals

7-Eleven – Whole pizzas for $3.14 in the app

Taco Bell – Mexican Pizza for $3.14 for rewards members

Blaze Pizza – BOGO 11-inch pizza for $3.14

BJ’s Restaurant & Brewhouse – $3.14 Pizookie with purchase of a shareable pizza

Papa John’s – $3.14 pizza with purchase for rewards members

Marco’s Pizza – Medium 1-topping pizza for $3.14 with large pizza purchase

Cicis Pizza – Buy a medium or large pizza and get a second pizza for $3.14.

Mountain Mike’s Pizza – Rewards members can get a BOGO medium 1-topping pizza for $3.14.

California Pizza Kitchen – Rewards members can get select pizzas for $3.14 with a $25 purchase.

Boston Market – $3.14 pot pies at participating locations.

Dessert Deals

Burger King – Hershey’s Sundae Pie for $3.14 with purchase

Voodoo Doughnuts– Two Banana Cream Pie donuts for $3.14 for rewards members.

Village Inn – Get a free slice of pie with the purchase of an entrée and drink.

Famous Dave’s – Get a free slice of pie with a $10 purchase.

Many of these deals are available in-app or for rewards members, so be sure to check your favorite restaurant’s app before ordering.

Since Pi Day only happens once a year, these offers tend to sell out quickly.

Tip: Download restaurant apps ahead of time to unlock rewards deals and special pricing.