How to determine Yarn Weight using WPI, or Wraps Per Inch

How do you know what size the yarn you've bought online actually is?
Shop with confidence using WPI (or Wraps per Inch)!
WPI is a systematic way to determine the weight of your yarn, and it's one of the more fool-proof methods. It takes out a lot of the guesswork and interpretation that can cause yarn weight disparities from yarn vendor to yarn vendor.
Want to determine yarn weight for yourself?
Here is the Yarn Gauge Tool I recommend:
woolery.com/as...
Check out my website for gorgeous Hand Spun Yarns and Eco Friendly Recycled Yarns:
www.clarionfib...