Design Your Own Crochet Projects book cover

TheDesign Your Own
Crochet ProjectsCrochet Calculator


This online calculator does much of the math embedded in the formulas you see in the book, and it offers you a shortcut to your designs that we hope will get you crocheting your custom accessories more quickly and easily.

Many of the patterns in the book require you to round stitch and row/round counts up or down in order for the math to work out evenly. The online calculator doesn’t do that, so if a number seems too high or too low, you may want to fill in the complete formulas provided in the book and adjust accordingly.

We’ve also provided cross-references to the print book for tips on how to handle tricky shaping, such as hat crowns, glove fingertips, and sock heels.

Above all, experiment and have fun. We’d love to hear from you! Show us your custom designs using the hashtag #DYOcrochetprojects on social media.

The Calculators