This page is a work in progress. I’ll be adding to it as I get time and more information. This is my interpretation of WPI. You may have different results because of the tension used. This is only a guide.
WPI (Wraps Per Inch)
Bernat Super Value (4/Worsted Weight) – 11 wpi
Sirdar Crofter Fair Isle Effect (Chunky) – 10 wpi
Bernat Handicrafter – 12 wpi
Briggs&Little Regal (2 ply) – 12 wpi