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List of United States standard crochet hook and knitting needle sizes

Accurate knitting needle and crochet hook sizing is important for both crafts. There are, however, no uniform procedures for indicating these measurements.[1]

The Craft Yarn Council of America (CYCA), an industry trade association, has collated a table of crochet hook and knitting needle sizes from de facto industrial standards and elicited the cooperation of its member organizations in adopting them to regularize sizing in the United States. The listed gauge systems are also widely used internationally. Their broader applicability is further highlighted by their normalization with the metric system,[2] which the CYCA members have agreed to have appear prominently on their packaging.

A hook gauge is used for measuring both knitting needles and crochet hooks. The size of a crochet hook is determined by the diameter of its shaft.[3]

  1. ^ Janine Flew, Diana Crossing (2006). Knit. Murdoch Books. pp. 10–11. ISBN 978-1-74045-759-0. Retrieved 2008-10-11.
  2. ^ "Hooks & Needles". Craft Yarn Council of America. Retrieved 2018-08-14.
  3. ^ Debbie Stoller (2006). Stitch 'N Bitch Crochet: The Happy Hooker. Workman Publishing. pp. 13–15.