Disclaimer

Crochet is handmade. Two people using the same pattern, yarn and hook routinely get different results, because tension differs from person to person and even from day to day.

That means:

• Yarn quantities are estimates. Real use is commonly 10 to 20 percent either side of any published figure, and more with textured stitches.
• Stitch and row counts depend on your gauge. Our gauge calculator uses the measurements you supply, so it is only as accurate as your swatch.
• Finished sizes depend on blocking and fibre. Many yarns relax and grow once washed.
• Time estimates depend on your pace, which changes as a pattern becomes familiar.

Each calculator says which of its outputs are estimates and lists the main factors that move them. For anything where fit or yarn budget matters, make a gauge swatch first.

We base our reference data on the Craft Yarn Council standards for yarn weights, hook sizes, head circumferences, abbreviations and chart symbols. The Craft Yarn Council itself describes these as guidelines rather than rules, and the gauge printed on your yarn label or in your pattern always takes priority.

Some things genuinely have no standard. Blanket dimensions are an example: common sizes vary between sources, so our charts are labelled as typical rather than official. Several older UK hook sizes also disagree between published charts, and we mark those "varies" instead of guessing.

Some crochet projects carry real safety considerations, and a calculator cannot assess them for you.

For anything intended for a baby or a child under 3:

• Use embroidered eyes and features rather than plastic safety eyes, buttons or beads, which are choking hazards.
• Work tightly enough that stuffing cannot be pulled out through the stitches.
• Sew all parts on very securely.
• Avoid long ties, loose ribbons and anything that could wrap around a neck.

For hot items such as pot holders, use 100 percent cotton. Acrylic can melt on contact with heat and cause burns.

Follow the care and safety information on your yarn label, and your own judgement about the person the item is for.

Our pricing calculator and business guides are general information to help you think about your costs. They are not financial, tax, accounting or legal advice.

Marketplace fees, tax rules and business registration requirements vary by country and region and change over time. Any fee figures quoted on this site are examples current at the time of writing; always check the current rates with the platform itself before setting prices.

If you need advice for your situation, speak to a qualified professional in your jurisdiction.

The AI tools on this site produce general informational suggestions and can be wrong. They are not a substitute for a pattern designer or an experienced instructor, and they do not provide professional advice of any kind.

Every AI answer carries a notice to that effect. Our AI content policy explains exactly where AI is and is not used, and confirms that calculator results never come from AI.

We link to outside websites, such as standards bodies, yarn information and photography credits, where they are genuinely useful.

We do not control those sites and are not responsible for their content, accuracy or privacy practices. A link is not an endorsement of everything on the linked site.

This website and its tools are provided "as is". We work hard to keep the formulas correct and the content accurate, and we publish our methodology and test our calculators, but we cannot guarantee that every result suits every project.

To the extent permitted by law, we are not liable for loss arising from use of this site, including wasted yarn, time, or a project that does not turn out as expected. You remain responsible for checking your own gauge and making your own decisions about your work.

If you believe something here is wrong, please tell us through our corrections policy. We would rather fix it than defend it.