Worsted weight yarn, also known as medium weight yarn or size 4 yarn, is the workhorse of the knitting and crochet world. Slightly thicker than DK weight and lighter than bulky yarn, worsted yarn weight is perfect for a wide range of projects from cozy sweaters and textured hats to afghans, blankets, scarves, and home décor.
Yarn weight number symbol: 4
Also known as: medium weight yarn, yarn weight 4, size 4 yarn
Knitting gauge: Approximately 4–5 stitches per inch (16–20 stitches per 4 inches)
Recommended knitting needles: US 7–9 (4.5–5.5 mm)
Crochet gauge: Approximately 2.75–3.5 single crochet per inch (11–14 stitches per 4 inches)
Recommended crochet hooks: US I/9–K/10.5 (5.5–6.5 mm)
Worsted weight yarn is beloved by knitters and crocheters of all skill levels for its perfect balance of warmth, drape, and stitch definition. It’s ideal for garments, cozy accessories, textured stitch patterns, afghans, blankets, and home décor items.
At Little Knits, you’ll find a wide selection of worsted weight yarns in soft wools, cotton blends, acrylics, and hand-dyed colors — all at amazing sale prices. Whether you’re crocheting a medium weight throw or knitting a classic worsted weight sweater, we have the right yarn for your next project.
💡Tip: For extra warmth and texture, try holding two strands of DK yarn together to match worsted weight gauge and experiment with color blending!