Pi Day — March 14, or 3.14 — is here, and for Californians, the math-themed holiday comes with extra local flavor.
The celebration was born in California in 1988 at San Francisco’s Exploratorium, and today it’s marked across the state with deep discounts on pizza, dessert pies, and other circular comfort foods.
From statewide chains like Round Table and Mountain Mike’s to national brands with a major California presence, Pi Day deals are stacking up for Saturday.
Here’s what to know about Pi Day — and where Californians can score the best food deals.
What is Pi?
Pi is an irrational number, according to NASA. That means it goes on forever and it never repeats its sequence of numbers. Pi has been calculated to more than one trillion digits. Usually, the approximation of 3.14 is precise enough.
Pi is the circumference of a circle divided by the circle’s diameter. Pi is the same for any circle, no matter how big or small. It is a mathematical constant. It’s fundamental for calculating anything that involves circles, curves, or spheres. It’s used in geometry, physics, engineering, and even computer science.
More Pi Day deals at California-based favorite chains
Several chains with a strong California presence are also rolling out Pi Day discounts Saturday:
Most offers are valid only at participating locations and may require app-based or loyalty membership sign-ups.
Below are some national chains with PI deals.
Discover surprise pie flavor at Crumbl
Crumbl will feature a bonus pie flavor on March 14 for Pi Day, with flavors varying by location.
DoorDash offers Pi Day deals
DoorDash is offering customers Pi Day offers from Pizza Hut and Blaze Pizza, according to Food Network.
When you order one medium or large “Create Your Own” pizza from participating Pizza Hut locations on March 14, you can get one free.
At Blaze Pizza, from March 14 through April 6, 2026, when you buy one ‘Simple Pie’ 11-inch cheese pizza, you get one free from participating locations.
From March 14 through April 6, 2026, you can get $4 off eligible Sbarro orders of $20 or more from all participating locations, and DashPass members can enjoy $5 off eligible orders of $25 or more.
Indulge with a sweet treat at Burger King
At Burger King, Royal Perks members can get a free Hershey’s Sundae Pie or Cinnamon Apple Pie with any $3.14 purchase online or via the Burger King app on March 14 for Pi Day, according to The Food Network.
7-11 embraces Pi Day with 3-14 deals
At 7-11 for Pi Day, 7Rewards and Speedy Rewards members can get a whole pizza for $3.14 in stores and via the 7NOW Delivery app and at Speedy Cafe locations, a large one-topping pizza is $3.14, March 13-14. 7-Select Snack Pies are $1 through April 28.
Grab a BOGO 3-14 Blaze Pizza
Blaze Pizza will offer a buy one, get one deal for Pi Day, March 14, according to Food Network. At participating locations, you can buy one 11-inch pizza and get a second or lesser or equal value for $3.14. You can also get a BOGO code to buy one 11-inch pizza and get one free on a future purchase.
Is Pi Day a national holiday?
Yes, Pi Day is a national holiday, as it was designated by the U.S. House of Representatives when the governing body passed a 2009 resolution recognizing March 14 as National Pi Day.
Who started Pi day?
The late physicist Larry Shaw started celebrating Pi Day in 1988 at the San Francisco science museum, the Exploratorium, to bring his coworkers together and have fun, according to the museum’s website.
He created cute traditions like bringing in a table laden with fruit pies and staging boombox parades while reciting the digits of Pi and singing “Happy Birthday” to Albert Einstein, who was born on March 14.
This article originally appeared on Palm Springs Desert Sun: Where to find $3.14 pizza and pie deals in California on Pi Day
Reporting by Jenna Prestininzi and James Ward, USA TODAY NETWORK / Palm Springs Desert Sun
USA TODAY Network via Reuters Connect
