How to Choose the Right Crochet Hook: Size, Material and Shape Explained

Walk into any craft shop and you'll be faced with an entire wall of crochet hooks. Different sizes, different materials, different handles — it can be overwhelming. But choosing the right hook is one of the most important decisions you'll make for any project, directly affecting your tension, comfort, and finished fabric. Here's everything you need to know.

Understanding Hook Sizes: UK vs US vs Metric

Hook sizing is where crocheters often get confused — especially when following patterns from different countries. The metric system (measured in millimetres) is the most universal and reliable. UK patterns traditionally used letter codes (B, C, D…) that differ from US letter codes for the same size, which is a constant source of mix-ups. Always look for the millimetre size printed on the hook itself.

As a rough guide: hooks from 2mm–3.5mm are considered fine/lace weight, 4mm–5mm are standard for DK and worsted yarn, and 6mm and above are chunky to super-chunky territory.

Hook Materials: Which Is Best?

Aluminium: The most common choice. Smooth, lightweight, and affordable, aluminium hooks glide through yarn easily and are great all-rounders. Perfect for beginners.

Bamboo and Wood: Slightly more grip than metal, which is useful for slippery yarns like silk or bamboo. They're warm to the touch and beautifully tactile, though they can be more fragile.

Plastic/Resin: Lightweight and inexpensive, great for large hooks (10mm+) where aluminium would feel heavy.

Ergonomic (Soft-Grip) Hooks: These have a widened, cushioned handle and are a game-changer for anyone who crochets for long stretches or has joint issues. Highly recommended if you're a frequent crocheter.

Hook Shape: Inline vs Tapered

Look closely at the throat (the curved part below the hook tip) and you'll notice two styles. Inline hooks have a deeper, more defined throat and a flat thumb rest — they're precise and popular with amigurumi makers. Tapered hooks have a gentler slope and rounder head, which many crocheters find faster to work with. Again, try both and see what clicks for you.

Matching Hook to Yarn

Every ball of yarn has a recommended hook size printed on the label. This is your starting point, not a rigid rule — your tension may mean you need to go up or down a size to hit the correct gauge for a pattern. Always swatch before starting a large project, especially garments.

Browse our curated selection of crochet patterns — many include full hook and yarn recommendations to get you started on the right foot.