Pi Day Knitting Patterns
To get the knitting patterns, scroll down the page to the individual pattern you want and click on the link to that pattern.
These patterns are not my designs but links to other designers who have generously shared their patterns. If you have questions about how to knit a specific pattern, please contact the designer directly.
All links on this site are for informational purposes, but please note that some links are to affiliate sellers that pay me a small commission on purchases.
Free Knitting Patterns
Pi Digits Scarf
Pi Party Illusion Knitting Face Cloth
Pi Beanie Hat
Pictured project by bleusheep
Irrational Pi Skirt
Designed by Jabak Designs, this skirt is worked flat and then seamed in a spiral. The number “Pi” starts at your right hip and you can make the skirt as long as you’d like, finishing so that the “end” of Pi stops in front of your right leg.
A pair or more of mittens featuring 3 irrational constants just in time for Pi-Day! Knit pi mittens – both left and right, add phi and e if you wish.
Math Pencil Case
This zippered bag is decorated with mathematical symbols including pi.
Pi Baby Sweater
Ode to Pi Toque Hat
Designed by Lisa Stockbrande, the top of the hat features the pi symbol while the pi digits circle the body of the hat.
These fingerless mitts designed by Rabbit Zielke are worked flat and seamed. Pictured project by singingstitcher
This sock design by Susan Gutperl uses the numbers from pi to determine the striping pattern.
Apple Pi Cozy/Bag
Apple-shaped bag with leaf drawstring and pi symbol … a quick and fun gift for kids’ teachers or anyone with a nerdy sense of humor.
The Irrational Scarf designed by Anne Bruvold is another approach to a pi digit scarf knitting pattern.
Pi Afghan Blanket Square
More FREE Patterns
Pi Dish Cloth
The pi motif designed by Shannon Shervesko can also be used on blanket squares, sweaters or other projects.
© BethAnn Photography
Easy as Pi(e) Blanket
Another pi beanie designed by TChemGrrl
Pi Fez Hat
Pi to 50 decimal places appears on the crown of this hat. The pattern makes a cozy beanie, or a fez if you felt it!
Patterns for Purchase
I liked this vest so much I wanted to include it though it is not free.
Sweet as Pi Baby Sweater (Not Free)
This baby cardigan by Susanne Visch is sized for Newborn (3 – 6 months, 12 – 18 months, 24 months).
Terry is a knitting late-bloomer, learning to knit as an adult from Internet tutorials, because she wanted a craft that was useful, fun, and portable. Knitting hats for cancer patients inspired her to design her own patterns—available for free at her blog, intheloopknitting.com. Terry met her husband Ken at a science fiction convention and moved to the Kansas City area to be with him more than 30 years ago. Terry supports her yarn stash by creating websites and other digital media. Terry firmly believes in Knitting in Public—it's a great conversation starter!