# What is WPI for yarn?

Contents

## What is WPI in yarn weight?

Wraps per inch is commonly used by weavers, but it can be helpful for all yarn users to identify the weight of yarn if its label is missing. 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.

## How do I know if my yarn is WPI?

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.

## 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.

## What ply is number 3 yarn?

Yarn conversion chart

Meters per 100gm UK Yarn Type Suggested Needle Size
460 4 Ply 2.25 – 3.25 mm
480
500 3 Ply
520

## What is a 4 ply yarn?

Basic 4 ply yarn is yarn consisting of four separate plies twisted together. Traditionally, ply was used as a measure of the thickness of yarn, sometimes corresponding directly to the size of knitting needles. … 4 ply yarn, then, is simply yarn with four plies twisted together, just as 2 ply yarn is yarn with two plies.

THIS IS AMAZING:  What is needed to make a blanket?

## How do I know what type of yarn I have?

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.