Marie Callender’s Pi Day deal is a free slice of pie with meal purchase.

Tenzo Matcha Tea Pie is a Pi Day special at The Pie Hole.

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Tenzo Tea Company is partnering with The Pie Hole on Pi Day specials.

B.J.’s Pi Day deal is a mini pizza.

Blaze Pizza is selling whole pizzas for $3.14 on Pi day.



Villa Italian Kitchen’s Pi Day deal costs $3.14 and a little personal information.

You don’t need to be a mathematician to understand what Pi Day means to your pocketbook.

Pi is a Greek letter and also a symbol used in geometry for the ratio of the circumference of a circle to its diameter. The number 3.14159, which according to experts will “continue infinitely without repetition or pattern.”

March 14 is Pi Day because the date can be written 3.14. It has been picked up by pie bakers and pizza chains as an excuse for promotions.

Here are some of the deals to watch for, but be aware that although pi is infinite, Pi Day deals are only good on Wednesday.

Pie

Coco’s Bakery Restaurant: Members of Coco’s email club can get a coupon for a $3.14 slice of pie, according to representatives. www.cocosbakery.com

Marie Callender’s Restaurant & Bakery: Visit the chain’s website to print a coupon good for a free slice of pie with the purchase of a full-price adult entree. www.mariecallenders.com

Polly’s Pies Restaurant & Bakery: The local chain of casual restaurants that started in Fullerton shaves off $3.14 from the price of whole pies. It has locations throughout Southern California. www.pollyspies.com

The Pie Hole: This growing Los Angeles chain will be serving three special pies for the occasion. They include the Lonely Pie (chocolate and peanut butter filling topped with potato chips); Thai Tea Pie; Tenzo Matcha Green Tea Pie, through a partnership with organic supplier Tenzo Teas.

But only slices of the Matcha will sell for $3.14 in-store, but so will small Tenzo Matcha Lattes. www.thepieholela.com

Pizza

B.J.’s Restaurant & Brewhouse: The Huntington Beach-based chain is offering one-topping mini pizzas for $3.14. www.bjsrestaurants.com

Blaze Pizza: The quick-bake chain backed by LeBron James is offering whole pizzas for $3.14 at participating locations. Orders must be made in-store. blazepizza.com

Cici’s Pizza Buffet: Participating locations have a coupon for a $3.14 dine-in buffet with the purchase of an adult buffet. Download it from Cici’s Facebook page. www.cicis.com

Pieology: People who join the chain’s Pie Life e-club can get a coupon for an 11-inch custom or Chef Inspired pizza for $3.14 at participating locations. www.pieology.com

Villa Italian Kitchen: The quick-service chain, often located in shopping malls, is offering full-size Neapolitan Cheese Pizzas for $3.14 with coupon you can download by supplying your name and an email address. Get it and choose your store location at www.villaitaliankitchen.com/piday