|Yarn Weight Symbol & Category Names||Type of Yarns in Category||Crochet Gauge* Ranges in sc to 4 inch||Recommended Hook in Metric Size Range||Recommended Hook in US Size Range|
|Fingering 10-count crochet thread||32-42 dc sts**||Steel*** 1.6-1.4 mm||Steel*** 6,7,8
Regular hook B/1
|Sock, Fingering, Baby||21-32 sts||2.25-3.5 mm||B/1 to E/4|
|Sport, Baby||16-20 sts||3.5-4.5 mm||E/4 to 7|
|DK, Light Worsted||12-17 sts||4.5-5.5 mm||7 to I/9|
|Worsted, Afghan, Aran||11-14 sts||5.5-6.5 mm||I/9 to K/10½|
|Chunky, Craft, Rug||8-11 sts||6.5-9 mm||K/10½ to M/13|
|Bulky, Roving||5-9 sts||9 mm and larger||M/13 and larger|
* GUIDELINES ONLY: The above reflect the most commonly used gauges and hook sizes for specific yarn categories.
** Lace weight yarns are usually knitted or crocheted on larger hooks to create lacy, openwork patterns. Accordingly, a gauge range is difficult to determine. Always follow the gauge stated in your pattern.
*** Steel crochet hooks are sized differently from regular hooks—the higher the number, the smaller the hook, which is the reverse of regular hook sizing.