List of United States standard crochet hook and knitting needle sizes

Accurate needle and hook sizing is important to knitting and crochet. Yet no uniform international standard exists for these tools.cite book|url=http://books.google.com/books?id=Ulv2kkxV2KYC&pg=PA10&dq=knitting+needle+sizes&ei=V97wSLvoF5KQzQSCqrngCg&sig=ACfU3U1cQlQKI9KTr-hrrRtHc9HatO6sZg#PPA11,M1|accessdate=2008-10-11|author=Janine Flew, Diana Crossing|title=Knit|publisher=Murdoch Books|date=2006|pages=10-11]

The Craft Yarn Council of America, and industry trade association, has formulated standard crochet hook and knitting needle sizes in order to regularize domestic United States sizing for these tools. Its goal is to encourage consistent manufacture and labeling of crochet and knitting tools around metric measurements.cite web|url=http://www.yarnstandards.com/hooks.html|title=Hooks & Needles|publisher=Craft Yarn Council of America|accessdate=2008-10-11]

Crochet hook sizing is measured by the thickness of the tool's shaft.cite book |accessdate=2008-10-11|author=Debbie Stoller|title=Stitch 'N Bitch Crochet: The Happy Hooker|publisher=Workman Publishing|date=2006|pages=13-15] Traditionally, North American crafters have used a hook gauge to double check knitting needle and crochet hook sizing.

United States standard crochet hook and knitting needle sizes

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