Yarn%20Weights%20and%20Measures. Yarn Weight Chart (or 'how many WPI is that?') Yarn Size Demystified. About Yarn I'm not going to bother repeating a lot of yarn facts because I believe they've been explained well enough by The Craft Yarn Council of America and Fabric University. If you really want to understand your stash better, you'll want to bookmark these sites. As you read the rest of this article, you may need to refer to these sites for terms you're unfamiliar with. Yarn Phobia If you have a reasonably large yarn stash, chances are pretty good that you'll find all sorts of labels with different information on each skein, ball or cone. The fact is that while the systems may appear to be very different on the surface, they all accomplish the same thing and that is to identify yarn in terms of size and weight. Yarn Weight In recent years, some manufacturers have begun using standard symbols to categorize yarns in terms of its size.
Yarn Count Yarn count, sometimes referred to as thread count, is the number of yards required to make one pound of size 1 cotton, linen or wool: Useful Tools. Wraps per inch method | Wool Festival. How to buy enough yarn using the Wraps Per Inch method Ahhh, you're looking at a fine skein of yarn, and don't yet have a pattern or design. It's on sale, it's calling your name. You've got to buy it. How much to buy? Wrap your yarn around a pencil, or ruler or any other similar object and count the number of wraps per inch. Wrap somoothly, with the yarn touching but not too tight. Refer to this handy chart A (or print and keep in your wallet!). You'll notice that the yardage is equal to the WPI X100 (12 wpi for worsted weight X 100 is 1200 yards you'll need to buy). To adjust the yardage for other sizes, add or subtract the % according to chart B *See this link for determining gauge Chart A: Yardage using WPI Chart B: Calculating other sizes Keep in mind for other sweater styles you'll need to add or subtract.
Yarn: Wraps Per Inch (WPI) | Craft World. The concept of "wraps per inch" is a handy one to have on hand. If you are a knitter or crocheter, this isn't the sort of critical knowledge that you encounter early in the learning process. But it can be tremendously helpful when you need it. Spinners are all very familiar with WPI. It is a way to measure yarn which tells you what the yarn's weight is. I recently busted out my WPI knowledge in order to tackle a skein of mystery yarn that I unearthed when I was shifting some boxes around. What thickness was it, exactly? Measuring the WPI can help answer these questions.
To actually measure the number of wraps per inch, all you need is a ruler and something to wrap the yarn around. My general rule of thumb is to place each wrap beside its neighbor, sliding it into place just once. Obviously, the thinner the yarn, the higher the WPI. This yarn fell in at around 12 WPI. Divide the skein's weight by the number of grams in 10 yards of yarn. Photo credit: Flickr/jek in the box. Titrages des fils. Titrage_des_fils.