Celebrate Pi Day on March 14 with lots of great $3.14 deals across the country.

Photo (cc) by J.Gabás Esteban

It’s the one day of the year when $3.14 can buy quite a bit. March 14, or 3/14, is National Pi Day, and businesses across the U.S. are hosting a variety of nerdy, Pi-themed promotions.

Drinks, baseball tickets, pizzas and, of course, pie! – all for $3.14. Check out these awesome Pi deals, shared by Time:

Boston . Enjoy a slice of $3.14 pie at the Beacon Hill Hotel or a $3.14 flatbread pizza at Salvatore’s.

. Enjoy a slice of $3.14 pie at the Beacon Hill Hotel or a $3.14 flatbread pizza at Salvatore’s. Chicago . Click here for a full list of Pi-themed promotions.

. Click here for a full list of Pi-themed promotions. Princeton, N.J. March 14 is a big day in Princeton, as the town also celebrates longtime resident and genius Albert Einstein’s birthday. Click here for a weekend full of Pi and Einstein events.

March 14 is a big day in Princeton, as the town also celebrates longtime resident and genius Albert Einstein’s birthday. Click here for a weekend full of Pi and Einstein events. St. Louis. Buy a regular-price pizza and get your second pizza for $3.14 at Pi Pizzeria, which has restaurants in Missouri and also owns the District of Pi restaurant in Washington, D.C.

The Gastonia Grizzlies in North Carolina are celebrating Pi Day with $3.14 game tickets and 31.4 percent off Grizzlies merchandise, plus a chance to pie Grizzlies staff in the face.

Pi is arguably the most widely known mathematical constant. The ratio of a circle’s circumference to its diameter, Pi comes out to be 3.141592653 … . I have to end there because Pi goes on forever.

Self-proclaimed math geek? While 3/14 may be fun, you’re probably even more excited for Pi Day 2015, a once-in-a-century thrill that will be over in the blink of an eye – 3/14/15 9:26:53 a.m.

I am definitely better with words than math, but I can recite 3.141592 from memory. I’m lost after that. Any big Pi Day plans? Share your comments below or on our Facebook page.

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