Knitting Needle Size Cross-Reference Chart

My knitting needles range in diameter from 1.2 mm to 12.0 mm, comprising straight needles (Aero, Redditch England) from 2.25 mm through 8 mm, double-pointed needles, DPNs (Aero, Knit Picks and Susan Bates), from 1.5 mm through 7.0 mm and circular needles from 1.2 mm up to size 8.0 mm (Knit Picks and HiyaHiya). (See related article, "My Needle Choices," if you are interested in how I select needles for specific tasks.)

NEEDLE MATERIALS
From size 6.00 mm and larger, the Aero straight needles are made of stiff plastic. Most of my circular needles are nickel-plated from Knit Picks (fixed circular for the smaller diameters and interchangeable needle tips for the larger sizes). My very small, stainless steel circular needles (<= 1.75 mm) are from HiyaHiya. I use small, anodized aluminum DPNs (1.5 mm - 2.25 mm) from Susan Bates. These are conveniently colored to make it easy to distinguish among the small needles. Other than the small diameter needles, any DPNs I have purchased recently to satisfy a project need are nickel-plated needles from Knit Picks.

I inherited a set of long, straight, plastic needles in sizes up to 6.0 mm (unknown manufacturer) that I find too flexible (hence too slow) for most knitting purposes, other than for casting on or for holding stitches. These are not included in the attached cross-reference table.

Related Articles
Knitting with Circular Needles
My Knitting Needles
My Sock Needle Choices

KNITTING NEEDLE SIZES
Metric (mm) US English
1.5 000  
1.75 00  
2.0 0 14
2.25 1 13
2.5  
2.75 2 12
3.0 11
3.25 3 10
3.5 4  
3.75 5 9
4.0 6 8
4.5 7 7
5.0 8 6
5.5 9 5
6.0 10 4
6.5 10.5 3
7.0 10.75 2
7.5   1
8.0 11 0
9.0 13 00
10.0 15 000
12.0 17  

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