Columns: Standard Yarn Weight System | Yarn Type (US) | Ply (UK, NZ, AU) | m/100g | Wraps Per Inch (WPI)
0 or Lace | Thread, Cobweb and Lace | 1 - 3 ply | 600-800 | 18+ wpi | 1 or Superfine | Fingering | 4 ply | 400-480 | 14 wpi | 2 or Fine | Sport | 5 ply | 300-400 | 12 wpi | 3 or Light | DK | 8 ply | 240-300 | 11 wpi | 4 or Medium | Worsted | 10 ply | 120-240 | 9 wpi | 5 or Bulky | Bulky | 12 ply | 100-130 | 7 wpi