Needle and crochet hook selector
Choose a yarn category to find trial metric tool sizes, then use your measured gauge to adjust.
Your calculation
Category 4: trial needles 4.5–5.5 mm, crochet hooks 5.5–6.5 mm.
- Gauge adjustment
- Try a larger tool
Use your measurements
Trial ranges refer to ordinary yarn, not steel thread hooks. More stitches than required means try a larger tool; fewer means try a smaller one.