Worsted vs DK Yarn: What's the Difference and Can You Swap Them?
These two yarn weights get confused a lot, and I get it. They look similar. They feel similar. But they're not the same, and swapping them without adjusting will change your finished size.
Quick Answer
Worsted (Category 4) is heavier than DK (Category 3). Worsted knits at about 16-20 stitches per 4 inches. DK knits at about 21-24 stitches per 4 inches. You can substitute one for the other, but you'll need to adjust needle size and stitch count.
| Feature | Worsted (Category 4) | DK (Category 3) |
|---|---|---|
| Weight class | Medium | Light |
| WPI | 9-12 | 12-14 |
| Knitting gauge | 16-20 sts / 4 inches | 21-24 sts / 4 inches |
| Hook size (crochet) | 5-6mm (H-I) | 4-5mm (G-H) |
| Needle size | 4.5-5.5mm (US 7-9) | 3.25-4.5mm (US 3-6) |
| Yards per 100g | 180-250 | 200-300 |
| Common uses | Afghans, sweaters, scarves | Baby clothes, lightweight garments |
Worsted Weight
- ✓Blankets and afghans
- ✓Warm winter sweaters
- ✓Thick scarves and hats
- ✓Beginner projects (easier to see stitches)
DK Weight
- ✓Baby garments
- ✓Lightweight sweaters
- ✓Spring and summer projects
- ✓Colorwork that needs finer detail
Frequently Asked Questions
Can I use two strands of DK to make worsted?+
Yes, approximately. Two strands of DK held together approximate worsted weight. But always swatch. The gauge might not match exactly, and you'll need twice as many skeins.
What happens if I use worsted instead of DK in a pattern?+
Your finished piece will be bigger. The fabric will be thicker and denser. You'll use fewer stitches but more yarn per stitch. Swatch and adjust needle size to match gauge.
Is aran the same as worsted?+
They're very close. Aran is slightly heavier than worsted but they're often used interchangeably. Aran knits at about 16-18 sts per 4 inches. Worsted is 16-20. In most patterns, you can swap them.