Yarn weight #1

Super Fine weight yarn (#1)

Super fine yarn is category 1 in the Craft Yarn Council system, also sold as sock, fingering or baby yarn. Crocheters use a 2.25–3.5 mm hook, US B-1 to E-4, and get 21–32 single crochet per 4 inches. Super fine yarn suits socks, light shawls and delicate baby garments.

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Super Fine weight yarn with a matching hook and swatch
Super Fine yarn at a glance
DetailValue
CYC number#1
Also calledSock, Fingering, Baby
Crochet gauge21–32 sc per 4 in / 10 cm
Hook size (mm)2.25–3.5 mm
Hook size (US)B-1 to E-4
Yards per 100 gabout 350–500 yd
Best forSocks, Lightweight shawls, Baby garments, Small detailed amigurumi

What is super fine weight yarn called in the US and UK?

Super Fine yarn is category 1 in the Craft Yarn Council system. You will also see it sold as sock, fingering, baby. It typically runs about 350–500 yd per 100 g, though the exact length depends on the fibre.

How does super fine yarn compare with the weights either side?

Lace (#0) is one step finer and works up at 32–42 dc per 4 in / 10 cm. Fine (#2) is one step thicker at 16–20 sc per 4 in / 10 cm. Moving one weight up usually means going up about one to two hook sizes.

Super Fine yarn and neighbouring weights
WeightCrochet gauge (4 in)Hook (mm)Hook (US)Yards per 100 g
#0 Lace32–42 dc per 4 in / 10 cm1.6–1.4 mm steel; up to 2.25 mm regularSteel 6, 7, 8; regular B-1about 600–900 yd
#1 Super Fine21–32 sc per 4 in / 10 cm2.25–3.5 mmB-1 to E-4about 350–500 yd
#2 Fine16–20 sc per 4 in / 10 cm3.5–4.5 mmE-4 to 7about 250–350 yd

What hook size should you use for super fine yarn?

Start with a hook between 2.25–3.5 mm (B-1 to E-4). Standard hooks in that range are 2.25 mm (US B-1), 2.75 mm (US C-2), 3.25 mm (US D-3), 3.5 mm (US E-4). Go down a size for tighter fabric such as amigurumi, and up a size for drape.

What is super fine yarn best for?

Super Fine yarn is a good choice for socks, lightweight shawls, baby garments, small detailed amigurumi. Our library has 3 patterns in this weight, such as sugar ’n spice afghan (1952), gold coast hairpin lace scarf (1951), lyric scalloped strip stole (1960).

Patterns using super fine yarn