Yarn weights
0 Weight or Lace weight is the lightest weight of yarn. Lace weight produces an extremely fine gauge fabric. Lace weight yarns are often knit or crocheted on larger needles and hooks to create lacy, openwork patterns. Accordingly, gauge range is difficult to determine. Lace weight yarns are often used for delicate shawls and wraps.
Recommended Crochet Hook Size: 1.6mm-1.4mm or regular 2.2
Common Gauge over 4 inches:
Knitting Stockinette: 33-40 stitches/ Crochet Single: 32-42 stitches
Fingering or Sock
Recommended Knitting Needle Size: US 1-3 or 2.25- 3.25mm
Recommended Crochet Hook Size: B-1 to E-4 or 2.25mm – 3.5mm
Common Gauge over 4 inches:
Knitting Stockinette: 27-32 stitches Crochet Single Crochet: 21-32 stitches
Sport
Recommended Knitting Needle Size: US 3-5 or 3.25-3.75mm
Recommended Crochet Hook Size: E-4 to 7 or 3.5mm – 4.5mm
Common Gauge over 4 inches:
Knitting Stockinette: 23-26 stitches Crochet Single Crochet: 16-20 stitches
Light Weight - Double Knit (DK Yarn)
Recommended Knitting Needle Size: US 5-7 or 3.75mm-4.5mm
Recommended Crochet Hook Size: 7 to I-9 or 4.5mm – 5.5mm
Common Gauge over 4 inches:
Knitting Stockinette: 21-24 stitches Crochet Single Crochet: 12-17 stitches
Medium Weight - Worsted/Aran
Recommended Knitting Needle Size: US 7-9 or 4.5mm-5.5mm
Recommended Crochet Hook Size: I-9 to K-10 ½ or 5.5mm – 6.5mm
Common Gauge over 4 inches:
Knitting Stockinette: 16-20 stitches/Crochet Single Crochet: 11-14 stitches
Bulky Weight
Recommended Knitting Needle Size: US 9-11 or 5.5mm-8mm
Recommended Crochet Hook Size: K-10 ½ to M-13 or 6.5mm – 9mm
Common Gauge over 4 inches:
Knitting Stockinette: 12-15 stitches Crochet Single Crochet: 8-11 stitches
Super Bulky
Super Bulky or 6 weight yarn is a very thick yarn that works up quickly on large needles and hooks. Most often it is used for cowls, scarves, and hats.
Recommended Knitting Needle Size: US 11-17 or 8mm-12.75mm
Recommended Crochet Hook Size: M-13 to Q or 9mm – 15mm
Common Gauge over 4 inches:
Knitting Stockinette: 7-11 stitches Crochet Single Crochet: 7-9 stitches
Jumbo
The thickest yarn weight currently is Jumbo or 7 weight. These super thick yarns are used in any big stitch projects or for arm knit or crochet. Jumbo yarn works up super fast into big stitch cowls, scarves, hats, or blankets.
Recommended Knitting Needle Size: US 17 and larger or 15 mm and larger
Recommended Crochet Hook Size: Q and larger or 15mm and larger
Common Gauge over 4 inches:
Knitting Stockinette: 6 stitches and fewer Crochet Single Crochet: 6 stitches and fewer.