There are many categories for yarn and types of yarn that fall into each category. Yarn weights are labeled from 0 to 6 with 0 being the thinnest of yarns and 6 being the most bulky. There are many different types of yarn in each category. The table below shows a general gauge for each of the yarn weights along with some recommended crochet hooks to use with that type of yarn. The information in the chart is the most commonly used gauges and crochet hook sizes for each yarn category. You can always use a crochet hook or create a gauge that is not listed on the chart.

Yarn Weight Symbol
Types of Yarn In Category	Fingering, 10-count crochet thread	Sock, Fingering, Baby	Sport, Baby	DK, Light Worsted	Worsted, Afghan, Aran	Chunky, Craft, Rug	Bulky, Roving
Gauge in Single Crochet 4″ (10 cm)	32-42 double crochets	21-32 sts	16-20 sts	12-17 sts	11-14 sts	8-11 sts	5-9 sts
Recommended Hook Sizes (metric)	Steel 1.6-1.4 mm	2.25-3.5 mm	3.5-4.5 mm	4.5-5.5 mm	5.5-6.5 mm	6.5-9 mm	9 mm and up
Recommended Hook Sizes (U.S.)	Steel 6, 7, 8 or B-1	B-1 to E-4	E-4 to 7	7 to I-9	I-9 to K-10 1/2	K-10 1/2 to M-13	M-13 and up

When you buy yarn a recommended crochet hook size and gauge may be listed on the packaging. If you are following a crochet pattern, it may also have the recommended crochet hook size and gauge in it.

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This entry was posted on Wednesday, April 8th, 2009 at 8:48 PM and is filed under Tutorials and Help. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.