Yarn Weight Standards
Reading Time: 2 minutes
Yarn Weight Standards
Yarn Weight Standards

Yarn Weight Standards

Here in North America, the yarn companies come together as a collection to work together voluntarily with the Yarn Craft Council of America. You will see standard information that appears on the ball bands of companies who cooperate to make the labels easier for consumers to use.

Medium 4 Weight
Medium 4 Weight

Balls bands have logos on the ball to indicate the weight of the yarn. This allows consumers to be able to mix and match yarns together when the classification of weight is the same.

Keep in mind there is generally a tolerance of yarn that falls in weight classes and it can vary. In 2015, the Yarn Craft Council introduced Jumbo 7 as a new option due to the latest new yarns being extremely chunky.

Yarn Weight Classifications

0 – Lace

Lace is considered a fingering crochet thread type of yarn. In the United Kingdom, New Zealand and Australia, this yarn is considered be 1 – 3 ply. Hooks generally used for this weight ranges in the steel classifications of 6 – 8 or up to B.

1 – Super Fine

  • Generally sock yarns, fingering weights and some baby yarns are really thin for this classification. In the United Kingdom, New Zealand and Australia, this yarn is considered be 4 ply. Hook sizes for this range are generally B – E sizes.

2 – Fine

  • You will find some baby yarns and sport weights in this classification. In the United Kingdom, New Zealand and Australia, this yarn is considered be 5 ply. Hook sizes for this are generally E – G.

3 – Light

  • Baby yarns, Double Knit and light worsted yarns are in this classification. In the United Kingdom, New Zealand and Australia, this yarn is considered be 8 ply. Hook sizes for this are generally G – I.

4 – Medium

  • Most yarns in the general usage are in this weight class. In the United Kingdom, New Zealand and Australia, this yarn is considered be 10 ply. Hook sizes for this are generally I – K.

5 – Bulky

  • Chunky or craft yarns are in this weight class. In the United Kingdom, New Zealand and Australia, this yarn is considered be 12 ply. Hook sizes range from K – M.

6 – Super Bulky

  • This is even thicker than regular bulky and goes into roving yarns. Hook sizes range from M – Q.

7 – Jumbo

  • Extremely thick yarn. This is currently the highest level of thickness available. This is for mega thick yarns using really big hooks. Hook sizes range from Q – Z.

2 thoughts on “Yarn Weight Standards

  1. Hi Mikey, thank you for this article on yarn weights, but please, can I ask you to mention the weight of the yarns you use in your demonstrations? As a UK crocheter I don’t always recognise the yarn and have to guess the weight from the size of hook you’re using.
    I love the Crochet Crowd and constantly have something on the hook!
    Best wishes,
    Debbie.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.