Pi T-Shirts

The number pi, or π, is a mathematical constant used to calculate measurements in circles. The number represents the ratio of the circumference to the diameter. The name PI has has been used in puns and math geek jokes for years, and these sayings make fun novelty t-shirt designs. Find silly pi-themed t-shirts here for celebrating PI day or for spreading math geek joy any time of the year.

Funny Irrational Pi Math Geek T-Shirt

This is a great text Pi Day t-shirt with a funny slogan for math nerds. The full slogan reads "They Call Me PI Because I'm Irrational and I Don't Know When To Stop". The arrangement of the different mashup fonts is fun and playful. The white text...

Funny Pi Password Star Wars Mashup Shirt for Password Day

The first Thursday in May is designated as World Password Day, a day meant to promote password best practices for a safer online experience. Using a secure password management program is a great way to get your passwords under control, keep them safe, and ensure you are doing...

Love Is Like PI Funny Math Geek T-Shirt

This is a fun graphic t-shirt that mashes up a sentiment of love with the mathematical constant PI. The design includes symbolic elements along with artfully arranged text. The main element of this t-shirt design is the text, which is arranged around a heart that surrounds the symbol...

Pumpkin Pi Pie Costume Teacher Halloween T-Shirt – Pumpkin Pi Pie Costume Teacher Halloween. View on Zazzle
Wear Pink Breast Cancer Awareness Warrior Women Pi T-Shirt – Wear Pink Breast Cancer Awareness Warrior Women Pink Ribbon View on Zazzle
Tax Consultant Cpa Will Give Tax Advice For Pi T-Shirt – Tax Consultant Cpa Will Give Tax Advice For Pizza . View on Zazzle
Funny Pi Day Shirt Spiral Pi Math Tee for Pi Day 3.14 T-Shirt – Cool pi day 3,14 mathematical ratio 3,14159 greek letters irrational number geek nerd math mathematic mathematician algebra science symbol geometry pun school student apparel; THIS IS... View on Amazon
Pi T-Shirt 3,14 = Pie Coincidence ? I Think Not Math Pun – If you love mathematics this sarcastic funny geek 3,14 tee is the one for you! Perfect for a birthday Pi day March 14 or Christmas present... View on Amazon
Pumpkin Pi Pie Funny Math Pun Thanksgiving Halloween Costume T-Shirt – Pumpkin Pie Funny Pi Pun Joke Thanksgiving Fall Autumn Pi Day Halloween Fancy Dress Up Cosplay Simple Easy Last Minute Costume Gifts Gift Idea; Lightweight, Classic fit, Double-needle sleeve and bottom hem. View on Amazon
Halloween Shirts For Teachers Pumpkin Pi Coffee Mug – Halloween Shirts For Teachers Pumpkin Pi View on Zazzle
Brother of the Sweet Sixteen Birthday Girl 16th Pi T-Shirt – Brother of the Sweet Sixteen Birthday Girl 16th Pink Crown View on Zazzle
Pi T-Shirt 3,14 Pi Number Symbol Math Science Gift T-Shirt T-Shirt – If you love mathematics this sarcastic funny geek 3,14 tee is the one for you! Perfect for a birthday Pi day March 14 or Christmas present... View on Amazon
Halloween Shirts For Teachers Pumpkin Pi – Halloween Shirts For Teachers Pumpkin Pi View on Zazzle
I Steal Hearts Autism Awareness Elephant Puzzle Pi T-Shirt – I Steal Hearts Autism Awareness Elephant Puzzle Piece. View on Zazzle
Thanksgiving Thick Thighs and Pumpkin Pies T-Shirt – Fall Thanksgiving Thick Thighs and Pumpkin Pies t-shirt. View on Zazzle
Pi Day T-Shirt 3.14 Cool Funny Nerd Math Geek 2017 Rainbow – Great Stuff For Math lover or it could be a gift for your family, dad, mom, son, daughter, brother, sister, grandpa, grandma, uncle, aunt, grandkid, grandchild,... View on Amazon
Baseball Player Pitches Be Crazy Funny Baseball Pi T-Shirt – Baseball Player Pitches Be Crazy Funny Baseball Pitcher View on Zazzle
Pumpkin Pi Tshirt Funny Math Shirt Pie Tee Thanksgiving Fall Autumn Tshirt (Heather Black) - XL – SUPERIOR DESIGN: Crazy Dog T-shirt branded tees are designed and printed in the USA. We screen print our graphic tees with state of the art equipment... View on Amazon
Pi T-Shirt 3,14 Pi Number Symbol Math Science Gift T-Shirt – If you love mathematics this sarcastic funny geek 3,14 tee is the one for you! Perfect for a birthday Pi day March 14 or Christmas present... View on Amazon
Pies de Gato (no words) Coffee Mug T-Shirt – Pies de Gato (no words) Coffee Mug View on Zazzle
Math Vintage My Password Is Last Digits Of Pi Happ T-Shirt – Math Vintage My Password Is Last Digits Of Pi Happy Pi Day. View on Zazzle
Tax Consultant Cpa Will Give Tax Advice For Pi T-Shirt – Tax Consultant Cpa Will Give Tax Advice For Pizza. View on Zazzle
Halloween Shirts For Teachers Pumpkin Pi – Halloween Shirts For Teachers Pumpkin Pi View on Zazzle
Can't Stop Pi Won't Stop Math Pi Day Funny Maths Club Gifts T-Shirt – Celebrate a happy Pi Day with this funny mathematics pun tee featuring the greek letter pi used as the mathematical symbol for the irrational number that... View on Amazon
Pies de Gato (no words) Coffee Mug T-Shirt – Pies de Gato (no words) Coffee Mug View on Zazzle
Funny Pi Day Vintage Nerd Geek Pie 3.14 Cute Sunset Diy Tee T-Shirt – fun cute 2020 diy school design, mathematics teacher student engineer clothing, love pi algebra symbol clothes, pie lover nerd geek apparel nerdy geeky party celebrate pi... View on Amazon
Brother of the Sweet Sixteen Birthday Girl 16th Pi T-Shirt – Brother of the Sweet Sixteen Birthday Girl 16th Pink Crown View on Zazzle
Pumpkin Pi Pie Funny Math Pun Thanksgiving Halloween Costume T-Shirt – Pumpkin Pie Funny Pi Pun Joke Thanksgiving Fall Autumn Pi Day Halloween Fancy Dress Up Cosplay Simple Easy Last Minute Costume Gifts Gift Idea; Lightweight, Classic fit, Double-needle sleeve and bottom hem. View on Amazon