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Choosing hooks

Choosing and understanding your crochet hooks is key to creating beautiful projects. Here’s what you need to know:

  • Follow the yarn label recommendation (usually listed in mm).
  • Use the hook size suggested in your pattern for correct gauge.
  • Adjust hook size to change fabric tension (larger hook = looser fabric).

Crochet hooks come in various sizes, affecting the size of your stitches and overall fabric.

  • Metric sizes (mm) refer to the diameter of the hook shaft.
  • Larger diameter = bigger stitches, looser fabric.
  • Smaller diameter = tighter stitches, denser fabric.
Size SystemSize RangeTypical Uses
US SizesB (2.25 mm) to S (19 mm)Smaller hooks for fine yarns to large hooks for bulky yarns
Metric Sizes2 mm to 25 mmPrecise measurement in millimeters
UK Sizes14 (small) to 000 (large)Different naming, less common globally

Beginners: Use a 5.0 mm (H-8) hook with worsted weight yarn.

MaterialCharacteristics
AluminumLightweight, smooth, good for most yarn types
SteelVery small hooks for lace and fine thread crochet
PlasticLightweight, sometimes less smooth, budget-friendly
Wood/BambooWarm, slightly textured grip, slows down stitching—good for slippery yarns

Choose a hook that feels comfortable in your hand and doesn’t tire your wrist.

PartDescription
HeadThe rounded tip that inserts into stitches
Throat/GorgeThe narrow part that pulls yarn through loops
ShaftThe straight part where loops form
Handle/GripThe part you hold (varies in shape/material)
  • Ergonomic hooks: Designed for comfort with cushioned grips.
  • Tunisian hooks: Longer hooks or double-ended hooks for Tunisian crochet.
  • Crochet hooks with built-in light: For working in low light.
Metric (mm)Imperial Steel (UK)US Steel HookUS Aluminum/Plastic HookImperial (UK Aluminum)
0.60 mm2414
0.75 mm2313
0.85 mm2212
1.00 mm2111
1.10 mm2010
1.25 mm199
1.50 mm188
1.65 mm177
1.75 mm166
2.00 mm14414
2.25 mm132B/113
2.50 mm1212
2.75 mm11C/211
3.00 mm1010
3.25 mmD/39
3.50 mmE/4
3.75 mmF/58
4.00 mmG/67
4.25 mm
4.50 mm76
5.00 mmH/85
5.50 mmI/94
6.00 mmJ/103
6.50 mmK/10.52
7.00 mm
8.00 mmL/110
9.00 mmM/N/1300
10.00 mmN/P/15000
  • Start with a medium size hook (5 mm/H-8) and medium weight yarn.
  • Try different materials to see what feels best in your hand.
  • Keep your hook clean and free of burrs for smooth stitching.

Always check the recommended hook size on the yarn label for best results.

  • Larger hook → looser fabric and more drape.
  • Smaller hook → tighter, firmer fabric.

Before starting a project (especially wearables), make a gauge swatch to ensure your stitches match the pattern. See Gauge and Tension for more information.