Pi Day Princeton

Pi Day Princeton & Einstein’s Birthday Celebration  2025 will be more fun than ever!

Einstein was born on March 14 — 3.14 — the numeric equivalent of Pi! Every year, the town of Princeton celebrates with an irrational number of events, including an Einstein Look-a-Like & Pi Recitation contest and pie sampling experience!

• Pi Recitation Winner receives $314.15!  (10yrs and younger)
• Look A Like Winner receive $314.15!  (10yrs and younger)
• Pie Eating Contest
• Meet & Greet with Benyamin Cohen, author of The Einstein Effect & social media manager for the official Einstein accounts with over 20 million followers
• LiLLiPies Pie Flight Tasting Experience 
• Pi Day & Einstein Pub Crawl (21yrs and older)
• Dinky Train Rides with Albert Einstein!
• Book the Einstein Suite at the Nassau Inn

There’s even a Pi-Rade, story time and book signings, and more! 

Princeton is honored to host the world to celebrate our most beloved Princeton genius!

Follow us on social media or email us for locations for each official event!

Event Partners

Princeton Tour Company, Princeton Public Library, Historical Society of Princeton, Princeton University, Benyamin Cohen, Bill Agress, Jeff Bross, LilliPies, McCaffrey’s, the bent spoon, Princeton Shopping Center, Conte’s Pizza, Jules, D’Angelo, Ivy Inn, Nomad Pizza, PJ’s Pancake House, McCarter Theatre, Nassau Inn, The Graduate Hotel, The Hampton Inn by Hilton & Princeton-Mercer Visitor Convention & Visitors Bureau

Pi Recitation & Einstein Look A Like Registrations – $3.14 per contestant | Guarantees participation in Pi Recitation competition (10yrs and younger) | Guarantees participation in the Einstein Look A Like competition (10yrs and younger) |Winner of Pi Recitation contest receives $314.15 | Winner of Einstein Look A Like competition receives $314.15

Most events are free and located in downtown Princeton or Princeton Shopping Center. We recommend arriving early to guarantee participation; however, the purchase of contestant registration guarantees participation to compete in contests.

2025 Pi Day Celebration Schedule 

Tuesday – 3.11.25 

•  7:00p.m. –  McCarter Live at the Library:  What is the Science of Love – Princeton Public Library Community Room  

Friday – 3.14.25 – PI DAY

•  All Day –  PSGC Fundraiser – LiLLiPiE a la bent spoon sundaes –   the bent spoon  
•  All Day –   Pizza Pie Lunch in Princeton with complimentary self guided tour – Conte’s , D’Angelo, Ivy Inn, Jules, Nomad Pizza – Dine in and receive a copy of our complimentary Self Guided Einstein Tour Map
•   1:59 p.m.  Pi Day Matinee  – Einstein and Eddington –  Princeton Public Library 
•   3:14 p.m.  Einstein Open Archive with Historical Society of Princeton  – Princeton Public Library – 2nd Floor
•   7:00 p.m.   Pi Day & Einstein Birthday Party Pub Crawl (21yrs and older – register at princetonmimi@gmail.com)

Saturday – 3.15.25

• All Day    PSGC Fundraiser – LiLLiPiE a la bent spoon sundaes – the bent spoon
• All Day –   Pizza Pie Lunch in Princeton with complimentary self guided tour – Conte’s , D’Angelo, Ivy Inn, Jules, Proof, Nomad Pizza – Dine in and receive our Self Guided Einstein Tour Map
•  8:00  a.m.  LiLLiPIES Pie Flight Experience – Princeton Shopping Center (Pi priced thru 2:00 p.m.) 
•  9:00 a.m.   Pie Eating Contest – McCaffrey’s at Princeton Shopping Center (limited to first 40 folks)
• 10:30a.m.   Einstein Story Time – Princeton Public Library – 3rd Floor
• 11:00 a.m.   Einstein Look-A-Like Contest – Princeton Public Library  – Community Room
• 12:00 p.m.  Pi Recitation Contest – Princeton Public Library (Pi-Rade immediately follows)
•   1:00 p.m.   Math Circle celebrating Pi Day – Princeton Public Library – 3rd Floor CoLab Space
•   2:00 p.m.  Hands On Einstein Exploration Station – Princeton Public Library – 3rd Floor
•   2:30 p.m.  Einstein Facts and Fun with Historical Society of Princeton – Princeton Public Library – 3rd Floor
•   3:14 p.m.   Dinky Train Rides with Albert Einstein (meet at Wawa Station – Bill Agress is our famous reenactor)
•   4:00p.m.   Presentation by Benyamin Cohen, author of The Einstein Effect –Princeton Public Library  – Community Room

Join us on Facebook and Instagram to follow along in a day’s worth of online irrational fun, including previous years’ contests, tours, video lectures, & more!  

#princetonpiday2025