Pi — there’s no way around it. This famous irrational number is encountered every day in all things circular, from the pipes bringing water to your house to the soccer ball being kicked around the field. No need to stress about the mathematics involved, with the ratio of a circle’s circumference to diameter, but use it as an excuse to celebrate on March 14! Make the party planning easy by checking out these fun ideas that range from eating pie to running in the name of pi.

Bennisons Cakes Pi Dayphoto: Bennison’s Bakery Pi

Eat a pi(e). It’s a celebration, so why settle for just a slice of pie? Bennison’s Bakery in Evanston and Swedish Bakery in Andersonville are offering mini-pies for just $3.14. Choose your favorite flavor and dig right in!

Mar. 14; 6 a.m.-7 p.m.
Bennison’s Bakery
1000 Davis St.
Online: bennisonscakes.com


Pi Day Pi K croppedphoto: Illinois Science Council Pi Day Pi K

Go for a Stroll. Work off that pi(e) by signing up for the Pi Day Pi K Fun Run/Walk. On the evening of March 14, get the family moving for 3.14 miles at one of the 4 locations (Old Town, South Loop, Lincoln Park and Elmhurst) and then celebrate your exercise with a party at the finish! There is a $10 registration discount for students under 17 and you’ll be supporting the Illinois Science Council while having fun.

Mar. 14; 6 p.m.-8 p.m.
Pi Day Pi K Fun Run
Fleet Feet Sports in Old Town, Lincoln Square & Oak Park
Online: PiDayRun.org

Eat a pizza pi(e). Simplify meal time by dialing up your local Lou Malnati’s for a some of that buttery, deep-dish goodness.

Online: loumalnatis.com

Lucky for you we have a list of America’s best pizza by state, just in case you’re on the road 3.14.


Museum of Science and Industry Brick by Brickphoto: Museum of Science and Industry

Test Your Engineering Skills. LEGOS may not be round, but the whole family will be amazed by the creations of all shapes and sizes on display in the Brick by Brick exhibit at the Museum of Science and Industry. Admire the round shapes of the Hoover Dam and Roman Coliseum recreations. Kids can use their engineering knowledge to build structures to withstand earthquakes or get creative in the open build area.

Mar. 14; 9:30 a.m.-4 p.m.
Museum of Science and Industry
5700 S. Lake Shore Drive
Hyde Park
Online: msichicago.org

Play a Game. If you prefer to keep the celebration at home, pick up the Pie Face game for the whole family to enjoy. Siblings will wait in anticipation to see who will end up covered in cream and you might even have fun getting in on the action. Visit Building Blocks Toys or Cat & Mouse Games to pick up the game and get ready for a night of family fun! If you’re short on time, call ahead and the store will have your order waiting.

Mar. 14; 10 a.m.-7 p.m.
Cat & Mouse Games
2212 W. Armitage
1112 W. Madison St.
West Loop
Online: Cat-n-mouse.com

Mar. 14; 10 a.m.-7 p.m.
Building Blocks Toys
3306 N. Lincoln Ave.
2130 W. Division St.
Wicker Park
Online: buildingblockstoys.com

Do you have any fun Pi Day plans? Throw them at us in the Comments below!

—Maria Chambers & Lisa Snart