Knitting Needle Conversions

Knitting Needle Conversion Chart UK-Metric-US

Here in the United Kingdom knitting needles are now sold using metric sizes but some knitters still use the old UK sizes in their patterns and the boom in vintage knitting patterns sees new knitters getting a bit confused over which needles to use!  I have created this simple chart to help new knitters and old hands alike to find the correct knitting needles for your project.

UK (old) Metric US
14 2mm 0
13 2.25mm 1
n/a 2.5mm n/a
12 2.75mm 2
11 3mm n/a
10 3.25mm 3
n/a 3.5mm 4
9 3.75mm 5
8 4mm 6
7 4.5mm 7
6 5mm 8
5 5.5mm 9
4 6mm 10
3 6.5mm 10 1/2
2 7mm n/a
1 7.5mm n/a
0 8mm 11
00 9mm 13
000 10mm 15
n/a 12mm 17
n/a 15mm 19
n/a 20mm 36
n/a 25mm 50

A slice of knitting needle info:

“The size of a needle is described first by its diameter and secondarily by its length. The size of the new stitch is determined in large part by the diameter of the knitting needle used to form it, because that affects the length of the yarn-loop drawn through the previous stitch. Thus, large stitches can be made with large needles, whereas fine knitting requires fine needles. The length of a needle determines how many stitches it can hold at once; for example, very large projects such as a shawl with hundreds of stitches might require a longer needle than a small project such as a scarf or bootie.”

Source: Knitting needle, (As of – Apr. 27, 2011).

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