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Yarn weight guide

Find yarn by weight

The number on a yarn label tells you how thick it is. Match it to your pattern for the right size, drape and feel.

Weight 2

Fine

Soft, light yarns for baby wear, amigurumi, doilies and airy summer tops. Neat stitches with fine detail.

Also called
Sport · baby
Crochet hook
3.5–4.5 mm
Knitting needles
3.25–3.75 mm
Shop all Weight 2
Weight 3

Light

The everyday all-rounder: tops, cardigans, bags and blankets that are light but quick to make.

Also called
DK · light worsted
Crochet hook
4.5–5.5 mm
Knitting needles
3.75–4.5 mm
Shop all Weight 3
Weight 4

Medium

Warm, easy-to-see stitches. Great for beginners, sweaters, caps, mufflers and cosy throws.

Also called
Worsted · aran
Crochet hook
5.5–6.5 mm
Knitting needles
4.5–5.5 mm
Shop all Weight 4
Weight 5

Bulky

Thick yarns that work up fast: T-shirt yarn for bags and baskets, plush for toys and cushions.

Also called
Chunky · craft
Crochet hook
6.5–9 mm
Knitting needles
5.5–8 mm
Shop all Weight 5
Weight 6

Super bulky

Big, squishy chenille for blankets, throws and pet beds that grow in an evening.

Also called
Super chunky
Crochet hook
9–15 mm
Knitting needles
8–12.75 mm
Shop all Weight 6
Weight 7

Jumbo

Extra-thick yarn for arm knitting, finger knitting and chunky décor — no hook needed.

Also called
Jumbo · arm knit
Crochet hook
15 mm and up
Knitting needles
12.75 mm and up
Shop all Weight 7
Good to know

How to choose a yarn weight

Match your pattern

Patterns name a weight number or a word like DK or worsted. Pick the row with the same number or name.

Make a test swatch

Work a 10 cm square first. More stitches than the pattern asks for? Go up a hook size; fewer, go down.

Label first

The hook and needle ranges here are the standard guide. The size printed on the yarn label comes first.

Not sure which weight?

Send us a photo of your pattern and we'll suggest the yarn.

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