Crochet Hook Size Chart
A practical reference for crochet hook size chart with context for choosing a starting value rather than treating conventions as fixed rules.
How to use this chart
Find the row closest to your material or intended size, then confirm it against the pattern, manufacturer guidance or a measured sample. Keep units consistent.
| Metric | Common US | Typical use |
|---|---|---|
| 2.25 mm | B-1 | Fine yarn |
| 3.5 mm | E-4 | Light yarn |
| 5 mm | H-8 | Medium yarn |
| 6.5 mm | K-10½ | Bulky yarn |
| 9 mm | M/N-13 | Super bulky |
Useful context
Published conventions differ by region, manufacturer and intended ease. Use the table as a starting reference and record the actual result from your own material.