Yarn Classifications
These are the generally accepted yarn classifications
in the United States. In the United Kingdom and
other countries, yarn names may be different.

weight

needle size
US (mm)

gauge in
stockinette stitch

cobweb

1 or smaller
(2.25 or smaller)

7 or more sts = 1 inch

fingering/lace

0-3
(2-3.25)

7 sts = 1 inch

sport

4-6
(3.5-4)

6 sts = 1 inch

double knitting

5-7
(3.75-4.5)

5 1/2 sts = 1 inch

worsted

7-9
(4.5-5.5)

5 sts = 1 inch

heavy worsted

8-10
(5-6)

4 1/2 sts = 1 inch

bulky/chunky

9-11
(5.5-8)

4 sts = 1 inch

extra-bulky/chunky

10 1/2 and up
(6.5 and up)

4 sts or fewer sts = 1 inch