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What are the Different Types of Knitting Needles?

Mary Elizabeth
Updated May 16, 2024
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Knitting needles, or knitting pins, as they are called in British English, come in three basic shapes: Single-point needles, double-point needles, and circular needles. In addition, there are two forms of cable stitch needles which are universally referred to as needles. Knitting needles are made with a variety of materials and available in a number of sizes. The needles required for a particular pattern are indicated in the instructions.

Single-point Needles. Single-point needles are the most common knitting needles, used for making flat knit pieces in a wide variety of patterns. They consist of a long, pointed shaft, with a cap on which their size is usually indicated. These knitting needles are straight, rigid, and made of aluminum, steel, plastic, or various woods such as bamboo, rosewood, ebony, or birch. Most are cylindrical, but at least one company offers a “square” version, which it claims are useful for people with stiff hands.

Double-point or Double-Pointed Needles. Made of similar materials to single-point needles, double-point knitting needles are used in sets of at least four to create seamless circular items, like tube socks, sleeves, or mittens. They can also be used for flat items. The number of needles required depends on the circumference of the item being made. In knitting instructions, these needles are often indicated as “dp.”

Circular Needles. Made of flexible nylon “cord” with metal, plastic, or wooden tips, circular needles are used for seamless circular items that are too large to work comfortably on double-point needles. They can also be used for very large flat items, such as afghans. Because the circumference of the piece being knit must be at least 2 inches (5.08 cm) larger than the length of circular needles, this will determine when to choose each needle type.

Cable Stitch Needles. Cable stitch needles are the only knitting needles with a built-in bend, specially designed to keep the cable from slipping off. There are two designs. One looks like a small hill in the middle of a long highway and is sometimes called a straight cable stitch needle or a cable stitch holder. The other type looks like a double-point needle with one end curved under, and always seems to be called a cable stitch needle. Each of these comes in a larger and smaller size, sometimes referred to as bulky and regular. They also often come in packs of three, with a bulky and regular needle and one “holder.”

Sizing. When buying knitting needles, it is important to consider both the length and the diameter. There are two completely different schemes used to size US and British knitting needles. Length is given in inches or mm, and diameter in a sizing scheme that runs from 0–50 for US sizing (~.08-1 inch) and from 2.1–25.4 mm for British sizing. The same size needles –- whether single-point, double-point, or circular -- are available in a variety of lengths in both systems. Sizes above US 17 are sometimes called jiffy needles because the large diameter and resulting loose weave mean that the work progresses quickly.

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Mary Elizabeth
By Mary Elizabeth
Passionate about reading, writing, and research, Mary Elizabeth is dedicated to correcting misinformation on the Internet. In addition to writing articles on art, literature, and music for HomeQuestionsAnswered, Mary works as a teacher, composer, and author who has written books, study guides, and teaching materials. Mary has also created music composition content for Sibelius Software. She earned her B.A. from University of Chicago's writing program and an M.A. from the University of Vermont.
Discussion Comments
By JessicaJean — On Jun 12, 2011

Because knitters rarely throw away old knitting patterns, there are new knitters very confused by references to older, no longer available new, sizes of knitting needles.

In Canada especially, the second hand stores abound in older, UK sized needles. Add to that, the fact that - over time - the US sizes have varied between manufacturers and some sizes have ceased to be made (Ever see a US size 12 needle? I have a US book printed in 1952 that suggests that size ~ Number Knitting by Virginia Woods Bellamy) and that the Chinese are now selling needles - some of which are using yet another sizing system.

By anon113145 — On Sep 23, 2010

Milward Knitting size 8 is a 4mm, so a 7 would be one

thicker than this.

By anon33441 — On Jun 06, 2009

what is machine dia & how does it very in fabric gsm?

By Dayton — On Oct 01, 2007

US size 7 needles is 4.5mm. I'm pretty sure the Canadian standard is to use mm.

By anon4014 — On Sep 28, 2007

I have an old knitting book, and it mentions #7 Milward Knitting Needles. Could you please tell me what size would equal this in Canadian measurements?

Thank You.

Mary Elizabeth
Mary Elizabeth
Passionate about reading, writing, and research, Mary Elizabeth is dedicated to correcting misinformation on the...
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