WPI measuring tool

How do you find out how thick yarn you have spun? Or has the yarn label band been lost?

The WPI measuring tool will help you. WPI stands for wraps per inch. Wrap the yarn around an inch wide loop so that the yarn is side by side, not on top of each other. Then count how many threads you can fit in an inch and look at the table to see what gauge the thread is. If you have really thin yarn and can't reel it in an inch wide, use a centimeter-wide loop. Do a multiplication, the number of threads * 2.54 and check the table for the thickness corresponding to the number of inches.

The most common definitions of yarn thickness are here:

0 – 4 wpi = Jumbo

5 – 6 wpi = Super Bulky

7 wpi = Bulky

8 wpi = Aran

9 – 11 wpi = Worsted

11 – 15 wpi = DK (Double Knitting)

12 – 18 wpi = Sport

14 – 24 wpi = Fingering

20 – 30 wpi  = Light Fingering

30 -40 wpi = Lace

40+ wpi = cobweb

Source: talvi knits

Unlike the picture, there is a small hole in the gauge, which makes it easy to hang the gauge on a spinning wheel for safe keep.

The product is printed on either a black or white background, depending on the surface colour you choose. The pattern on the base also varies. If you want a plain colour, or a base without pattern, please mention this when ordering.

The product is 3D printed in Finland, from plant-based, biodegradable plastic. The product must not be heated or left in direct sunlight, for example in a car. The product starts to soften at around 60 degrees Celsius.