# Your question: How do you measure WPI yarn?

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To calculate the wraps per inch (WPI), simply wrap the yarn around a pencil or knitting needles. Don’t wrap too tightly, just provide the normal slack you would if you were knitting. Wrap the yarn for approximately 3-4” along the pencil/needle. Use a ruler and count the number of wrap per inch.

## How do you measure yarn size?

Count the wraps within the inch, and compare against these measurements below:

1. Lace or 2 ply: 35 or more.
2. Light fingering, sock, or 2 ply: 22 – 34.
3. Fingering or 4 ply: 19 – 22.
4. Sport: 15 – 18.
5. DK: 12 – 17.
6. Worsted or Aran: 9 – 11.
7. Bulky or Chunky: 8 – 10.
8. Super Bulky or Super Chunky: Anything that has 7 or less wraps per inch.

7.10.2015

## What is yarn WPI?

WPI or wraps per inch refers to a way of measuring the thickness of a yarn. And although this is a term that is fairly well known among spinners, it can also come in quite helpful for knitters and crocheters as well!

## What weight yarn is 12 WPI?

The number of wraps will act as a gauge to assess the thickness of unmarked yarn; for example 12 wraps per inch is 12 WPI, and is used to calculate how much yarn is required for various articles, so that 12 is equivalent to 8 ply (worsted weight, medium weight) yarn.

## How many WPI is DK yarn?

Yarn Weight Chart (or ‘how many WPI is that?’)

Yarn type Wraps per inch (wpi)
Double knit (DK) 11 wpi
Sport 12 wpi
Fingering or 4-ply 14 wpi
3-ply 16-18 wpi

## What are the sizes of yarn?

Yarn Weight (Thickness)

Yarn Weight US Needle Size Knitting Stitches Per Inch, in Stockinette Stitch
Fine or sport-weight 3–6 5–6
Light worsted or DK (double-knitting) 5–7 5–5 1/2
Medium- or worsted-weight, afghan, Aran 7–9 4–5
Bulky or chunky 10–11 3–3 1/2

## What is size 3 yarn called?

3—Light (DK, Light Worsted) Slightly heavier than a fine weight yarn, this weight is used for items such as garments and heavier baby items. 4—Medium (Worsted, Afghan, Aran) Worsted weight yarn is the most frequently used.

## How is WPI calculated?

To measure yarn in wraps per inch (or WPI) you need a ruler, and something to wrap the yarn around that has a consistent circumference, like a pencil. Begin by wrapping your yarn around the pencil for a few inches.

Wraps Per Inch (WPI) by yarn weight.

CYC weight WPI
2 Fine 12-18
3 Light 11-15
4 Medium 9-12
5 Bulky 6-9

## What is finger weight yarn?

Fingering weight yarn is a smaller diameter yarn that usually has 400–450 yards per 100 grams. Alternatively called “Sock Yarn” this is the most common weight used for making socks because of its light weight creating a fine texture”

## How do I know what size yarn needle to use?

A simple guideline: Add the measurements (in millimeters) of the suggested needle size for each yarn and then use the needle that is closest in size to that number. For example, for a swatch of two strands of Wool-Ease Chunky, we added 6.5 mm plus 6.5 mm to get 13 mm. The closest needle size is 12 mm, which is a US 17.

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## What size is 4 ply yarn?

In the U.S., 4 ply yarn typically means a medium weight yarn or double knitting (DK) yarn.

## What ply is yarn weight 4?

Two-ply yarn generally refers to super-fine yarn. Four-ply yarn is lightweight (also known as DK or double knitting yarn) Aran yarn is not usually specified by ply, but this means worsted or medium-weight yarn.

## What ply is 8 4 yarn?

8/2 is a 2 ply, 8/4 is a 4 ply and 8/8 is an 8 ply. They get progressively fatter and therefore have less yardage per pound. The 16/2 is half of the size of a #8……so that first number sort of gives you an idea of the size of the yarn.

## Is DK yarn 8 ply?

8-ply yarn, also known as DK or light worsted, is the most popular of all the yarn weights. It’s a versatile balance between lightness and texture, letting you create fine stitches where needed without taking forever to knit up.

## Can I use worsted instead of DK?

‘Can I substitute DK yarn for worsted?’

You can! But it’s worth bearing in mind that DK is a slightly thinner yarn to worsted, so the best way to substitute is by going up a needle or hook size so that the tension will be the same.