US, English and metric needle sizes do not line up neatly, and the English numbering runs in the opposite direction to the US one – a larger English number means a smaller needle. The metric measurement is the reliable one.

As with hooks, needle diameters vary a little between manufacturers. Use the chart to find the right ballpark, then swatch and change needle size until your gauge matches the pattern.

US English Metric (mm)
15 000 10
13 00 9
11 0 8
– 1 7 1/2
– 2 7
10 1/2 3 6 1/2
10 4 6
9 5 5 1/2
8 6 5
7 7 4 1/2
6 8 4
5 9 3 3/4
4 - 3 1/2
3 10 3 1/4
– 11 3
2 12 2 3/4
1 13 2 1/4
0 14 2

A dash means there is no equivalent size in that system.

Knitting Abbreviations

Abbreviation Meaning
beg beginning
bet between
CC Contrast Color
CO cast on
dec decrease
dpn double pointed needles
eor every other row
inc increase
K2tog knit 2 together
K knit
MC Main Color
KB knit through back of st (loop)
P purl
PB purl through back of st (loop)
psso pass slipped st over
PW purl wise (or as if to purl)
rem remaining
sk skip
sl slip
sp space
st stitch
tbl through back of loop (st)
tog together
won wool on needle
wrn wool round needle
yo yarn over
yon yarn over needle
yrn yarn round needle