Yarn Group

The Yarn Group classification system is one of the internationally recognized standards for categorizing yarn by thickness. It is typically determined based on factors like yarn count, ply, weight, and recommended needle sizes. While there may be slight variations between brands and manufacturers, most follow similar grouping standards. Below is an overview of the common Yarn Group categories, along with recommended needle sizes and other details. We hope you find it helpful.

Yarn Thickness Classification Table

Yarn ThicknessNumberGroupNe/NM (Yarn Count)Recommended Needle SizeSuitable Project TypesTension (Gauge)Length per 50gLength per 100g
Fingering Weight / Sock Weight1A30+ NM / 10+ Ne2mm-3mmIdeal for socks, lightweight garments, and delicate accessories28-32 stitches and 40-44 rows for a 10x10cm square using 2.5mm-3mm needles160-200 meters320-400 meters
Sport Weight2B22-30 NM / 8-11 Ne3mm-3.5mmSuitable for lightweight sweaters and shawls24-26 stitches and 32-34 rows for a 10x10cm square using 3mm-3.5mm needles120-150 meters240-300 meters
DK Weight3C13-19 NM / 5-7 Ne3mm-4mmPerfect for medium-thickness sweaters, scarves, and shawls22-24 stitches and 30-32 rows for a 10x10cm square using 3mm-4mm needles100-125 meters200-250 meters
Worsted Weight4D9-12 NM / 4-5 Ne4mm-5mmGreat for regular sweaters, coats, and blankets20-22 stitches and 28-30 rows for a 10x10cm square using 4mm-5mm needles80-100 meters160-200 meters
Aran Weight4D6-8 NM / 3-4 Ne5mm-6mmBest for thick sweaters, jackets, and shawls18-20 stitches and 24-26 rows for a 10x10cm square using 5mm-6mm needles60-80 meters120-160 meters
Bulky Weight5E3-5 NM / 2-3 Ne6mm-9mmIdeal for heavy coats, blankets, and hats14-16 stitches and 20-22 rows for a 10x10cm square using 6mm-9mm needles40-60 meters80-120 meters
Super Bulky Weight6F1.5-2.5 NM / 1-2 Ne9mm-12mmPerfect for ultra-thick coats, rugs, and cushions10-12 stitches and 14-16 rows for a 10x10cm square using 9mm-12mm needles30-40 meters60-80 meters

This classification of yarn thickness is based on common industry standards, compiled from various resources in the fields of knitting, crochet, and textiles. Many crafting books, websites, and guidelines from major yarn brands follow similar categorization methods. Below are some notable sources:

  • The Knitter’s Handy Book of Patterns by Ann Budd
  • The Knitter’s Guide to Yarn Weight and Gauge by Clara Parkes
  • Knitting Rules! by Stephanie Pearl-McPhee

These books provide an in-depth exploration of yarn weight, needle size selection, and foundational standards for yarn classification, making them invaluable for hand-knit enthusiasts.

If you notice any errors or would like to contribute suggestions for improvement, please feel free to contact us!

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