Standard Yarn Weights and Recommended Hook Sizes
Standard Yarn Weights
| Weight | Weight Name | WPI | Typical Hook Size |
|---|---|---|---|
| 0 | Lace | 30+ | 1.5–2.25 mm |
| 1 | Super Fine | 14–30 | 2.25–3.5 mm |
| 2 | Fine | 12–18 | 3.5–4.5 mm |
| 3 | Light | 11–15 | 4.0–5.0 mm |
| 4 | Medium | 9–12 | 5.0–6.0 mm |
| 5 | Bulky | 6–9 | 6.5–9.0 mm |
| 6 | Super Bulky | 5–6 | 9.0–15.0 mm |
| 7 | Jumbo | <5 | 15.0 mm+ |
WPI means wraps per inch.
Yarn weight is measured by how many times the yarn wraps around a ruler
within one inch.
Common Yarn Names and Uses
| Weight | Also Referred to As | Typical Uses |
|---|---|---|
| Weight 0 – Lace |
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| Weight 1 – Super Fine |
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| Weight 2 – Fine |
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| Weight 3 – Light |
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| Weight 4 – Medium |
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| Weight 5 – Bulky |
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| Weight 6 – Super Bulky |
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| Weight 7 – Jumbo |
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