The table below reflects the most commonly used gauges and needle or hook sizes for specific yarn categories. So, before you start that next yarn project refer to the yarn weight standards guide to make it perfect!

Knit

Crochet

Yarn Weight

Yarn Type

Needle Size Range*

Hook Size Range*

Gauge Range

Symbol

Category

U.S.

Metric

Stockinette stitch to 4"

Single crochet to 4"

Lace

Fingering 10-count crochet thread

000 - 1

Steel Hook 6, 7, 8 Regular Hook B-1

1.5 - 2.25 mm

Steel Hook 1.6 - 1.4 mm Regular Hook 2.25 mm

33 - 40 sts

Single 32 - 42 double crochets

Super Fine

Sock, Fingering, Baby

1 to 3

B–1 to E–4

2.25 - 3.25 mm

2.25 - 3.5 mm

27 - 32 sts

21 - 32 sts

Fine

Sport, Baby

3 to 5

E-4 to 7

3.25 - 3.75 mm

3.5 - 4.5 mm

23 - 26 sts

16 - 20 sts

Light

DK, Light Worsted

5 to 7

7 to I-9

3.75 - 4.5 mm

4.5 - 5.5 mm

21 - 24 sts

12 - 17 sts

Medium

Worsted, Afgan, Aran

7 to 9

1-9 to
K-10½

4.5 - 5.5 mm

5.5 - 6.5 mm

16 - 20 sts

11 - 14 sts

Bulky

Chunky, Craft, Rug

9 to 11

K-10½ to
M-13

5.5 - 8 mm

6.5 - 9 mm

12 - 15 sts

8 - 11 sts

Super Bulky

Super Bulky, Roving

11 to 17

M-13 to Q

8 - 12.75 mm

9 - 15 mm

7 - 11 sts

7 - 9 sts

Jumbo

Jumbo Roving

17 and larger

Q and larger

12.75 mm and larger

15 mm and larger

6 sts and fewer

6 sts and fewer

* GUIDELINES ONLY: The above reflect the most commonly used gauges and needle or hook sizes for specific yarn categories.

Lace weight yarns are usually knitted or crocheted on larger needles and 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.