Pi Day 2022: Where to get $3.14 pizza and other deals around metro Phoenix

Monday, March 14, is Pi Day, not to be confused with National Pie Day held in January or National Pizza Day in February. The day is usually a smorgasbord of deals, including pizza for $3.14.

The annual celebration is of the mathematical constant π (pi), which is the ratio of a circle's circumference to its diameter. The trillion-digit ratio is rounded to 3.14.

Albert Einstein was born on Pi Day, and noted astrophysicist Stephen Hawking died on the made-up holiday in 2018.

But you don't have to be a math scholar to be acutely aware that Pi Day equals deals on circular food, including pies and pastries.

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Pi Day freebies, deals and $3.14 pizza in metro Phoenix

Here are the deals available at participating locations Monday, unless otherwise noted. To be on the safe side, always check with your closest location before heading out. Many deals require you to have a restaurant's app or be signed up for emails.

7-Eleven Pi Day pizza deal

7-Eleven will have a $3.14 pizza deal Monday for members of its 7Rewards loyalty program. Get any whole pizza for $3.14, including cheese, pepperoni or 7-Meat at participating 7-Eleven and Speedway stores. At participating Speedway stores, get the deal with the Speedy Rewards loyalty program.

The Pi Day pizza deal also is available for $3.14 through the 7NOW delivery app.

There's a limit of two pizzas per rewards member in-store and two pizza deals for delivery. Fees and delivery charges apply.

BJ’s Pi Day $3.14 pizza deal

BJ’s Restaurant & Brewhouse has a dine-in pizza deal for Pi Day. Get a mini one-topping pizza for $3.14 Monday.

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Blaze Pi Day deal: Pizza for $3.14

Blaze Pizza is giving new and existing Blaze Rewards members any 11-inch pizza for $3.14 with a one-time reward on the chain's app. To get the deal you need to sign up for the loyalty program on the app by the end of the day Monday. The reward can be redeemed Monday through March 31.

Crust upgrades are extra and there is a limit of one Pi Day reward per user.

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Chuck E. Cheese Pi Day and spring deal

Chuck E. Cheese said its Spring-tastic Family Fun Pack is available for Pi Day and through April 24 for delivery or carryout. For $34.99, get two large pizzas, Unicorn Cotton Candy, a goody bag and spring activity sheet, and 250 e-tickets for your next Chuck E. Cheese visit.

Domino's Pi Day: $3 coupon for carryout orders

For a limited time, Domino's will give you a $3 "tip" to order your pizza online and pick it up yourself instead of choosing delivery.

Make a carryout order through May 22 and get a $3 coupon code to redeem the following week on a carryout order of $5 or more before tax and gratuity.

Also, earn points to redeem for free pizza with the chain's Piece of the Pie rewards program that you can sign up for at Dominos.com.

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Hungry Howie’s Pi Day deal

Hungry Howie’s is offering 40% off any pizza from Sunday through March 20 with promo code FORTY. The deal is for online carryout orders at participating locations.

Pieology Pi Day double rewards points

Pieology has a “Free Pizza Friday” promotion on social media on Fridays in March. It will give away 14 free pizzas Monday. To enter, guests must comment how many toppings they like on their pizza and Pieology will pick the 14 winners on Monday at 5 p.m. PST.

Also on Monday, Pieology will be celebrating with double the points for Pie Life Reward members who download the app and join the chain's "circle of family, friends and community."

Round Table Pizza Pi Day deal

Round Table Pizza is celebrating Pi Day with an offer for a $3.14 Personal Cheese Pizza Monday. The deal is available to new and existing loyalty members. Access the deal on the Round Table Pizza Royal Reward App.

Slice Pi Day deal

Slice, the pizza delivery app with over 17,000 local pizza shops nationwide, is offering $5 off pizza orders $15 or more for first-time Slice users with promo code PIDAY2022.

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This article originally appeared on USA TODAY: Pi Day pizza deals 2022: Blaze, Domino's and more metro Phoenix deals