Saturday, March 14 is Pi Day (3.14) and the quirky, mathematical holiday means one thing—tons of pie-themed events and dining deals in Chicago!
From $3.14 slices of pie to family-friendly fun here’s your guide to Pi Day in Chicago 2026!
Pi Day Celebration at the Museum of Ice Cream

The Museum of Ice Cream is celebrating Pi Day with a week-long celebration of themed activations and limited-edition sweets!
In partnership with Mathnasium Learning Centers, guests can explore hands-on math activities and trivia all about Pi.
Visitors can also enjoy the MoIC’s signature Sprinkle Pool and Banana Room, along with fun photo ops, and a special “Ice Cream à la Pi” treat.
Discounts at First Slice Pie Café

Head to any First Slice Pie Café location in Chicago this Pi Day for steep discounts on all your favorite slices!
First Slice is offering $3.14 pie slices and $6.28 mini pies.
Choose from fruit pies, cream pies, cheesecakes, and seasonal selections.
Pi Day Specials from Bang Bang Pie & Biscuits

Pi(e) Day is one of the biggest days of the year at Bang Bang Pie & Biscuits—but there’s still time to get your order in!
The Logan Square sweets shop is offering tons of specials, including the “frankenpie” featuring an assortment of chef-selected slices all in one pie.
Place your order here.
Pi Day treats at Roeser’s Bakery

There’s no better spot to treat yourself this Pi Day than Roeser’s Bakery in Humboldt Park.
Chicago’s oldest family-owned bakery, Roeser’s is offering all the your favorite classic pies on March 14.