AUSTIN, Texas — Grab your calculators because March 14 marks Pi Day.

Pi is represented by the Greek letter “π” and is the symbol used in math to represent a constant, the ratio of the circumference of a circle to its diameter, which is approximately 3.14159.

In honor of the the infinite digits, there are several celebrations, freebies and discounts around the city.


Happy Pie Day at Round Rock Library - The Mathnasium is partnering with the Round Rock Library and hosting several pi-themed activities.

Pi Day show at The Liberty presented by AFHC & FXFY - No Cover but must be 21 to enter. No wristband required.

Pi² Day - The Austin Public Library is celebrating all things pi and pie. Come take part in a pie tasting and discussions about the mysteries of pi.

Pi Day Pizza Party - Little Woodrow's on Burnet is hosting a pizza eating contest and deals on pizza all day.

Pi Day Movie at Yarborough Branch - Austin Public Library Yarborough branch is hosting a screening of the Phantom Tollbooth. Free pie will also be available.

Pi Day Dash & Pizza Party - Run or walk to empower young women during Gixo’s Pi Day Dash. For every mile completed, Gixo will donate $10 to Girls Who Code.


Boston Market – Use this printable coupon to get this deal: Buy one Pot Pie and a drink, and get one Pot Pie free. March 14 only.

Cici’s PizzaBuy 1 Regular Price Buffet, Get a Second Buffet for $3.14. At participating locations on March 14.

Papa Murphy’s – Pi Day Special: Large Thin Crust 1 Topping Pizza $3.14 March 14 only at participating locations. Online only.

Pizza Hut – Get a large two-topping pizza for $7.99, or two medium two-topping pizzas for $5.99 each. These deals are good for online orders only.

Urban Bricks Pizza — Urban Bricks is offering all pizzas for $3.14 on Pi Day. The offer is good for dine-in orders only.

Whole Foods – Get large bakery pies for a $3.14 discount on March 14, while supplies last. See more details.