Standards and Guidelines for Crochet and Knitting

The publishers, fiber, needle and hook manufacturers, and yarn members of the Craft Yarn Council have worked together to set up a series of guidelines and symbols to bring uniformity to yarn, needle and hook labeling, and to patterns, whether they appear in books, magazines, leaflets or on yarn labels. Our goal is to make it easier for industry manufacturers, publishers and designers to prepare consumer-friendly products and for consumers to select the right materials for a project and complete it successfully. We urge manufacturers, publishers, and designers to adopt these guidelines. Downloads of the graphic symbols are available at at no charge. We ask that if you use them in any publication that you advise us in an e-mail of your intention to use them and that the following credit line be given:

Source: Craft Yarn Council

We received valuable input from allied associations in the United States, such as The National NeedleArts Association, the Crochet Guild of America, and The Knitting Guild Association, as well as designers and consumers. Ultimately, our objective is to design global standards and guidelines that will be used by companies worldwide. To this end, we have reached out to individuals, manufacturers and trade associations in the United Kingdom, Germany, Italy, France, as well as in Australia and New Zealand to ask for their input.


Standard Yarn Weight System

Crochet Chart Symbols

Knit Chart Symbols

Crochet Abbreviations

Knitting Abbreviations

Project Levels

Standard Body Measurements/Sizing

Baby Size Chart

Child/Youth Size Chart

Woman Size Chart

Man Size Chart

Head Circumference Chart

Foot Size Chart

Hand Size Chart

Hooks & Needles Size Chart

Steel Crochet Hook & Crochet Thread Size Chart

Care Symbols

Yarn Standards FAQs

Downloadable Yarn Standards Guideline PDF