It’s Pi Day! And to celebrate, here’s the official formula for a pi shawl:
CO 9 sts and join to knit in the round.
Knit 1 rnd.
(YO, k1) around—18 sts.
Knit 3 rnds.
(YO, k1) around—36 sts.
Knit 6 rnds.
(YO, k1) around—72 sts.
Knit 12 rnds.
(YO, k1) around—144 sts.
Knit 24 rnds.
(YO, k1) around—288 sts.
Knit 48 rnds.
(YO, k1) around—576 sts.
Knit up to 96 rnds, then work a border.
Or, if your a knitting masochist like me, you can increase to 1152, work a few inches, and then work a border with twice as many sts as you would have if you’d ended with 576 sts in your main shawl.
You can work any lace pattern of your choice in each segment. Fudge by increasing or decreasing a few stitches if you need to for your stitch multiple to fit.
These photos are from my Diamond Rings Pi Shawl which is available on Ravelry.