Yarn & hook guide for crochet
Choose a yarn and hook that create the fabric your project needs. A label gives you a starting point; a swatch shows how the combination actually behaves in your hands.
Read the yarn label first
- Fiber: check the material and care instructions.
- Length and ball weight: compare meters or yards, not only the number of balls.
- Yarn weight category: this describes thickness, not the physical weight of the ball.
- Suggested hook: use it as a starting point, then follow your pattern’s gauge.
- Dye lot: buy matching lots when a consistent color matters.
Understand yarn weight
Under the Craft Yarn Council system, categories run from 0 (lace) to 7 (jumbo). DK is commonly in category 3 (light), and worsted is commonly in category 4 (medium). Names vary between brands and countries. Compare the actual yarn specification and make a swatch before substituting.
Reference: Craft Yarn Council standard yarn weight system.
Match the fiber to the project
- Cotton: useful when stitch definition and low stretch matter. Test the weight and drape before using it for a long garment.
- Wool: often brings warmth and elasticity. Follow its washing instructions carefully.
- Acrylic: widely available in many colors. Check the label for care and heat guidance.
- Blends: consider how each fiber affects stretch, drape, and care rather than choosing by softness alone.
Choose a comfortable hook
Use the metric size in millimeters when comparing hooks; letter and number labels can differ. The shape of the hook head and handle is a personal preference. Try a few rows and notice whether the hook catches the yarn, splits it, or feels uncomfortable.
How to check gauge
- Use the pattern’s yarn, stitch pattern, and suggested hook to make a swatch larger than the area you will measure.
- Wash and dry it as you intend to care for the finished piece, following the fiber’s care instructions.
- Lay it flat without stretching. Count stitches and rows across the specified measurement, away from the edges.
- Compare with the pattern. Too many stitches in the same width? Try a larger hook. Too few? Try a smaller hook.
- Make another swatch after a change. Check both stitch and row gauge when the pattern depends on them.
Substitute yarn with a plan
Match the weight category, fiber behavior, length per gram, and washed gauge as closely as possible. A yarn can match stitch gauge but still make a heavier or less flexible fabric. For a garment, check whether you actually like the swatch’s drape before buying the full quantity.
Your first practice combination
For learning, choose a smooth, light-colored yarn and a hook within the label’s recommendation. Avoid fuzzy or very dark yarn until you can identify the stitches. Use our beginner practice rectangle to build consistency.
Next: read your pattern and review finishing and blocking before starting.