Grab 12 free printable Pi Day coloring pages! Cute designs with pi symbols, pies, pizza, and math tools. Perfect for March 14th fun at home or in the classroom.
What’s a math teacher’s favorite dessert? Pi.
Why should you never talk to pi? Because it goes on forever.
What do you call a snake that is 3.14 meters long? A pi-thon.
As a math nerd, I get a kick out of pi jokes. And Pi Day (March 14th… 3/14, get it?) is the perfect time to have a pizza party, eat some yummy fruit pies, and tell hilarious pi jokes.
But my kids? They need more than jokes to get excited about math. So I put together 12 free Pi Day coloring pages packed with cute pie characters, pi symbols, pizza (because circles!), and even a geometry diagram that sneaks in real formulas. They work for preschoolers all the way up through elementary, and the only supplies you need are crayons and a printer.
Print a few for a quick afternoon activity, or use the whole set for a Pi Day celebration at home or in your classroom. Either way, it takes about 30 seconds to set up.
What’s Inside the Printable
This free download includes 12 Pi Day coloring sheets, all designed to print on standard 8.5″ x 11″ paper. Here’s what your kids will find:
Happy Pi Day Pie with Cherry: A kawaii-style pie with a cute face, surrounded by the pi symbol and 3.14. Great for younger kids thanks to the bold, simple outlines.
Happy Pi Day Math Doodles: The big pi symbol takes center stage here, surrounded by math tools like a calculator, ruler, protractor, compass, pencil, and light bulb. Older kids who love all things math will gravitate toward this one.
Pi Symbol with Digits: This one is really cool. The pi symbol is filled with the actual digits of pi (3.14159265…) running along the inside of the letter. Older elementary kids can color each digit a different color and see how far pi goes. It doubles as a sneaky memorization tool.
Circle Math Diagram: A classroom-ready coloring page showing a circle divided into sections with the formulas for radius, diameter, circumference, and area. There’s a bookshelf, compass, and triangle ruler around the edges. This one is perfect for 3rd-5th graders who are starting to learn about circles, and it makes a great companion to a hands-on pi discovery activity.
Pi Character with Sneakers: A round, happy pi character wearing sneakers and giving a thumbs up. Simple design, bold lines, and pure fun. Preschoolers and kindergarteners will love this one.
Happy Pi Day Pie (Simple): Another cute pie face, this time with a simpler design and bigger text. Perfect for the youngest colorers who need bold lines and fewer small details.
Pi Day Party Pie: A pie wearing a party hat, surrounded by balloons and confetti with pi symbols scattered throughout. It has a celebration feel that makes it ideal for a Pi Day party or classroom event.
Pi Day Pizza: Because what’s Pi Day without pizza? A whole pepperoni pizza with the pi symbol in the center, framed by “Happy Pi Day.” Kids who couldn’t care less about math will still want to color a giant pizza, and you can sneak in a quick lesson about how pizza is a circle.
Pi Mandala: A detailed mandala pattern with the pi symbol in the center, surrounded by concentric circles of geometric patterns. This one is designed for older kids (and, honestly, adults too) who want a bit more of a challenge. It’s calming, detailed, and looks gorgeous when it’s finished.
Pi Day Brain Character: The letters “Pi Day” with a cartoon brain character peeking around the P. A fun one for kids who love science and want to celebrate being “brainy.”
I Love Pi Day Puppy: An adorable puppy sitting in a classroom holding the pi symbol, with books, pencils, and a chalkboard with math doodles in the background. This is the crowd favorite in our house. Animal lovers, this one’s for you.
Happy Pi Day Classroom: A classroom scene with kids celebrating Pi Day around a chalkboard showing the pi symbol. There are books, stars, and a banner. This is the most detailed page in the set and works beautifully for kids who like to spend a long time on one coloring project.
Fun Ways to Use These Coloring Pages
Coloring these pages is fun on its own, but you can stretch the learning (and the activity time) with a few simple add-ons:
Make it a Pi Day party favor. Print a few pages, staple them into a mini coloring book, and toss in a small pack of crayons. Instant party activity for a classroom celebration or playdate.
Turn it into a measuring activity. Hand your kids the Circle Math Diagram page and a piece of string. Before they color it, have them find circular objects around the house (cans, bowls, jar lids) and measure the circumference. Then see if they can figure out pi by dividing the circumference by the diameter.
Color by digits. For the Pi Symbol with Digits page, assign a color to each number (0 = red, 1 = blue, 2 = green, etc.) and let your kids color each digit accordingly. It creates a cool visual pattern and helps them see the randomness of pi’s digits.
Pair with pie baking. Color the pages while a pie is in the oven. When the pie comes out, measure its diameter and circumference before slicing. Coloring + baking + math = a perfect Pi Day trifecta.
Create a Pi Day display. If you’re a teacher or homeschool parent, hang the finished coloring pages on a bulletin board or fridge. Add a banner that says “We love Pi Day!” and you’ve got an instant math-themed display.
What Is Pi Day?
Pi Day is celebrated every year on March 14th because the date, 3/14, matches the first three digits of pi (π = 3.14159…). Pi is the ratio of a circle’s circumference to its diameter, and it’s the same for every circle, no matter how big or small. The digits go on forever without repeating, which is what makes it so fascinating to mathematicians (and kind of fun for kids to try memorizing).
Pi Day started at the San Francisco Exploratorium in 1988 and became an official national holiday in 2009. And here’s a fun fact your kids might enjoy: Albert Einstein was born on March 14, 1879 – Pi Day!
Most families celebrate by eating pie (the edible kind), doing circle-related math activities, and seeing how many digits of pi they can recite. These coloring pages are the low-effort, high-fun way to join in.
More Pi Day and Math Activities
If your kids are on a math kick after Pi Day coloring, here are a few more activities they’ll love:
- Build geometric shapes with marshmallows and toothpicks – perfect for hands-on geometry learning
- Try the marshmallow and toothpick tower challenge – see who can build the tallest freestanding structure
- Check out our marshmallow and toothpick STEM activities for 10 more building challenges
- Build a marshmallow bridge and test how much weight it can hold
And if you want to take the geometry further, our Marshmallow & Toothpick Geometry Task Cards include 13 different 2D shapes and 11 different 3D shapes. They’re a great next step after your kids discover circles and pi.
Download Your Free Pi Day Coloring Pages
Ready to print? Click the image below to get all 12 Pi Day coloring pages delivered straight to your inbox as a single PDF file.
These printables are free for personal and classroom use. Print as many copies as you need! If friends or family want a set, please send them to this post so they can download their own.
I’d love to see your kids’ finished Pi Day coloring pages! Tag me @mombrite on Instagram and let me know which design was your favorite. And if you need more coloring fun, check out our Dr. Seuss coloring pages – they’re perfect for Read Across America Day, which is right around the same time.