The Best National Pi Day 2018 Deals

National Pi Day is here, which means what exactly?

The holiday celebrates the number Pi, which can be used to figure out the circumference of any circle, no matter its size. National Pi Day is celebrated on March 14 because it's the same first three numerals as the number Pi — 3.14.

Luckily, if you aren't a mathematician, you can still appreciate National Pi Day 2018 with a number of pizzas and pie deals. Companies around the country are giving customers a variety of discounts, many of which cost $3.14, for National Pi Day 2018. Who said you would never use math after high school?

Here are some of the best deals available for National Pi Day 2018:

Whole Foods

Whole Foods is hooking customers up with a $3.14 discount off of large size pies at participating locations all day while supplies last.

Blaze Pizza

For National Pi Day 2018 Blaze Pizza is selling pizzas for $3.14 each, with a one per customer limit at participating locations.

Boston Market

Buy one pot pie and a drink, and get another pot pie free for on National Pi Day at Boston Market. Simply print out the coupon available on their website and use it anytime on Wednesday.

Pieology

For National Pi Day 2018, Pieology (which is actually a pizza company) is offering a buy one get one deal: You can get one pizza for just $3.14 if you buy any regular priced 11 inch chef inspired or custom pizza.

Pi Pizza

Born on Pi day? Pi Pizza's got you covered. Anyone born on National Pi Day gets a free pizza Wednesday. Everyone else can buy one large pizza and get another of equal or lesser value for, you guessed it — $3.14

Bojangles

Customers can buy up to three pies each for $3.14 while supplies last at participating locations. You can also go on Twitter and be entered to win a gift card for correctly answering any math and Pi-related questions the Bojangles account puts out into the Twitter-verse.

&Pizza

This pizza joint is making it possible for Pi lovers to get married on National Pi Day. You can stop by locations that will be revamped as pop-up wedding chapels on March 14 and marry your sweetheart while eating pizza. The pop-up chapels will be open at their Boston, New York, Washington, D.C., and Philadelphia locations. Why, you ask? &Pizza wants to celebrate both National Pi Day and its brand values, one of which is "oneness."

Marie Callender's Restaurant & Bakery

You can get one free slice of pie with one full-priced adult entreé using this coupon on National Pi Day 2018.

ThinkGeek

If you want to wear your affection for National Pi Day 2018 on your sleeve, ThinkGeek's got you covered. You can buy a "Sir Cumference" shirt for just $19.99 if you buy $50 worth of merchandise and use the code "ROUNDTABLE." Sadly, it looks like the shirt is out of stock, but check back if you want to be ready for National Pi Day 2019.

Hungry Howie's

Hungry Howie's is offering two days of discounts both online and in-store on March 13 and 14 at locations across the U.S. Buy a regular-priced "Howie Bread" and you can order a medium one-topping pizza for just $3.14. Use code "PI18" online.