![Yarn weight Lace, Size 0. Also known as fingering or crochet thread. Knit gauge range 33-40 stitches per 4 inches US needle size 000 to 1](https://s3.amazonaws.com/michellevuksic.com/img/Size+0.png)
Lace | Size 0
Yarn weight 0 is referred to as lace, fingering, or crochet thread. This is the lightest weight yarn and requires gentle handling as it breaks easily.
Size 0 yarn is used for dollies and lace designs.
![Yarn weight Superfine, Size 1. Also known as sock or baby. Knit gauge range 27-32 stitches per 4 inches. US needle size 1 to 3](https://s3.amazonaws.com/michellevuksic.com/img/Size+1.png)
Superfine | Size 1
Yarn weight 1 is referred to as superfine, or sock; also sometimes called baby or fingering.
Size 1 yarn is used in lightweight designs to make accessories & socks.
![Yarn weight fine, Size 2. Also known as sport or baby. Knit gauge range 23-36 stitches per 4 inches. US needle size 3 to 5](https://s3.amazonaws.com/michellevuksic.com/img/Size+2.png)
Fine | Size 2
Yarn weight 2 is referred to as fine, or sport; occasionally referred to as baby.
Size 2 yarn is excellent for small items like socks, gloves, hats, or garments for babies and children.
![Yarn weight light, Size 3. Also known as DK or 8 ply. Knit gauge range 21-24 stitches per 4 inches. US needle size 5 to 7](https://s3.amazonaws.com/michellevuksic.com/img/Size+3.png)
Light | Size 3
Yarn weight 3 is referred to as light or DK.
Size 3 yarn is commonly used to make lighter knit or crochet items such as sweaters & light weight scarves.
![Yarn weight medium, Size 4. Also known as worsted or aran. Knit gauge range 16-20 stitches per 4 inches. US needle size 7 to 9](https://s3.amazonaws.com/michellevuksic.com/img/Size+4.png)
Medium | Size 4
Yarn weight 4 is referred to as medium, worsted, or Aran.
Size 4 yarn is versatile for a variety of projects – sweaters, rugs, blankets, hats, mittens.
![Yarn weight bulky, Size 5. Also known as worsted or aran. Knit gauge range 12-15 stitches per 4 inches. US needle size 9 to 11](https://s3.amazonaws.com/michellevuksic.com/img/Size+5.png)
Bulky | Size 5
Yarn weight 5 is referred to as bulky or chunky.
Size 5 yarn is used to make thicker rugs, jackets, blankets, and sweaters.
![Yarn weight super bulky, Size 6. Also known as super chunk. Knit gauge range 17-11 stitches per 4 inches. US needle size 11 to 17](https://s3.amazonaws.com/michellevuksic.com/img/Size+6.png)
Super Bulky | Size 6
Yarn weight 6 is referred to as super bulky or super chunk.
Size 6 yarn is used to make heavy rugs, jackets, blankets, and thick sweaters
![Yarn weight bulky, Size 7. Also known as roving. Knit gauge range is less than 6 stitches per 4 inches. US needle size 17 and larger](https://s3.amazonaws.com/michellevuksic.com/img/Size+7.png)
Jumbo | Size 7
Yarn weight 7 is also referred to as jumbo or roving.
Size 7 yarn includes any yarn that is larger than Size 6 – Super Bulky.
This yarn is excellent for arm crochet/knitting & used to make blankets, rugs, baskets & other furnishings.