National Pi Day for the year 2023 is celebrated/observed on Tuesday, March 14th. There are until the next observance.

Pi Day is on March 14th, and any day that combines fun, education, and pie deserves to be celebrated! Pi, usually known as the Greek letter “,” is a mathematical constant that denotes the ratio of a circle’s circumference to its diameter, which is about 3.14….15….9265359… (and so on). Not only that, but March 14th is also Albert Einstein’s birthday, so it’s nothing short of a mathematician’s dream.

📆 When is National Pi Day?

This year, National Pi Day is on March 14th. It is the 2nd Tuesday in March; in 2024, it is on Thursday.

Countdown to National Pi Day

Did you know: At 70,000 decimal places, Rajveer Meena holds the record for memorizing the most decimal digits of pi.

You can also explore all cool things you didn’t know about and facts about March 14, 2023.

📜 History of National Pi Day

However, it was initially christened with the Greek letter as its name by William Oughtred in his writings going back to 1647, and it was later adopted by the scientific world when Leonhard Euler used the sign in 1737.

But how did Pi Day become a national phenomenon? To do so, we must travel to the Exploratorium in San Francisco in 1988, where it was invented by physicist Larry Shaw.

Shaw associated March 14 with the first three digits of pi (3.14), in order to create a special day to unite the Exploratorium workers, where he served fruit pies and tea to everyone beginning at 1:59 pm, the following three numbers of the value. After Larry’s daughter, Sara, pointed out that the auspicious day was also Albert Einstein’s birthday, they began commemorating the great scientist’s life.

Pi Day became an annual Exploratorium tradition that continues to this day, and it didn’t take long for the concept to spread rapidly, peaking on March 12, 2009, when the United States Congress designated it a national holiday.

Pi Day has now become a pop cultural phenomenon, celebrated by math geeks all over the world, with numerous locations participating in events, pranks, observations, and as much pie eating as they can.

National Pi Day Promotions:

Here are some of the National Pi Day Pi Day specials.

On National Pi Day, 7-Eleven locations are selling big pizzas for the amazing price of $3.14. You may get it in-store via the loyalty program, the 7-Eleven app, or the 7NOW delivery app.

Pizza Blaze

Blaze Pizza offers 11-inch pizzas for Yes, you guessed it… $3.14. To be eligible, you must download their app, create a rewards account, and choose your preferred Blaze Pizza restaurant. After that, you may pick up your pizza at any time between now and April 12.

Sandwich Shop Potbelly

Potbelly Sandwich Shop has adopted a somewhat different approach to Pi Day. They’re giving away free chicken pot pie soup to 314 Perks members. Check the app to discover whether you are a fortunate winner.

Spritz with Aperol.

This is one of the most unique Pi Day deals we’ve found. Aperol Spritz wants to be the drink you drink with your pie and is offering $3.14 off an Aperol Spritz kit. Those of legal drinking age may take advantage of the deal by going to Reserve Bar’s website and using the code APEROLSPRITZ. They are also donating $31,415 to the non-profit Another Round, Another Rally

Your Cake

Here’s another $3.14 deal for you. Your Pie is currently providing a $3.14 discount on a 10-inch pizza. The promotion will be available to Pie Rewards members from Sunday through Tuesday.

Pilot of the Flying JThe Flying J travel centers are joining in the fun. For $9.99, you can have an extra-large, homemade whole pizza pie. The offer is available through their app until March 14 and is valid at over 350 participating locations.

The Boston Public Market

On National Pi Day, get a pot pie for $3.14 at Boston Market. That’s more than 50% savings, so it’s excellent for your wallet as well as your r wallet as well

Check out Goldbelly if you’re searching for something a bit sweeter. They’re “nerding out” for Pi Day by offering up to 30% off some of their best-selling pies. Visit their website to see all of their current promotions.

☑️ National Pi Day facts

It’s used as stress tests for computers
Computing pi is the computer equivalent of a “digital cardiogram.”

A Givenchy men’s cologne is named pi
So if you’re the intelligent and imaginative kind, you may smell like pi as well.

It has other names
Pi is also known as “Archimedes’ constant” and “Ludolph’s number.”

Things to do on National Pi Day

Enjoy pie of course
Pi is a homophone of pie; the two words sound similar but are spelled differently and have different meanings. Eat a lot of pie to celebrate Pi Day! You name it: pizza, cherry or apple!

Throw a potluck party
Everyone enjoys bragging about their family pie recipe. Make it a potluck, and everyone will bring their favorite pie for Pi Day, whether it’s a pizza pie, a pot pie, a savory pie, or a sweet pie. Make a playlist with songs such as “I Like Pie, I Like Cake” and “American Pie.”

Try making a new pie
Have you ever attempted to cook a pie? This is your chance to make it your own. Not a fan of the sweet stuff? Don’t worry, there are plenty of savory pie recipes available so that everyone may experience the warm buttery flakiness of a freshly baked pie.

📅 National Pi Day Observances

2023 March 14 Tuesday
2024 March 14 Thursday
2025 March 14 Friday
2026 March 14 Saturday
2027 March 14 Sunday

See all March holidays, including Special Interest and other Activities holidays.

We will continue to update this page with new information and interesting facts about National Pi Day. So be sure to check back soon.