Pi Day is Wednesday, March 14, marking the ratio of the circumference of a circle to its diameter, or 3.14.
Port City Daily has compiled a list of special deals and activities on National Pi Day.
Pi Day started 30 years ago at San Francisco's Exploratorium.
Your Pie, at 4403 Oleander Drive, will host its 10th annual Pi (e) Day event on March 14 to celebrate.
Get one build-your-own-pie pizza for $3.14 at Blaze Pizza (all Las Vegas locations).
Norma's Cafe: The Dallas-area diner mini-chain is known for its pies, and on National Pi Day, it will donate a percentage of its sales to the Dallas Millennial Club's nonprofit Millennials for STEM, according to the Norma's Facebook page.
Order an artisanal pie ($35) online and have it ready for pick-up at the store on Pi Day from 8am to 6pm. If you're not a math enthusiast, don't worry, plenty of businesses will offer discounts in honor of the day.
30th anniversary of Pi Day celebrated with a tasty pie Google doodle
Mathematician Archimedes used polygons with many sides to approximate circles and determined that Pi was approximately "22/7". The challenge is in its fifth year, and features mathematical problems that can be solved using Pi.
Papa Murphy's (Multiple locations): Large thin crust one-topping pizza for $3.14.
Take home a savory or sweet pie from Cupitol Coffee + Eatery for $3.14. The chain's apple hand pie will also be available for $3.14, plus it is hosting a giveaway where three classrooms in Chicago will receive free Nutella hand pies.
Happy Jack's Pie n' Burger (1800 20th St.): Free slice of pie with purchase of entree for dine-in guests.
Be sure to check your favorite pizza spot for Pi Day promotions.
Pizza Hut (Multiple locations): Get a large two-topping pizza for $7.99, or two medium two-topping pizzas for $5.99 each.
The Elsen sisters will be serving up a variety of their popular pies including Salted Caramel Apple, Salty Honey, Matcha Custard, and Bittersweet Chocolate Pecan, as well as seasonal combinations like Apple Rose, Black Sesame and Turmeric Tonic.