Free crochet tools

Which tool do I need?

• How much yarn do I need?
• What weight is my yarn?
• Which hook is a size H?
• How do I increase evenly across a row?
• Is my pattern in US or UK terms?
• What should I make next?

Yarn & hooks

What your yarn label means, which hook to use, and how much yarn to buy.

• Yarn calculator Work out how much yarn a crochet blanket, scarf or hat needs, in yards, metres and skeins, for any yarn weight and stitch. Open →
• Yarn weights Find any yarn weight by the name on its label (DK, 8 ply, worsted, aran, chunky), by wraps per inch, or by number, with the hook size and gauge to use. Open →
• Hook size converter Convert crochet hook sizes between millimetres, US letters, old UK numbers, steel hooks and Japanese sizes, and see which yarn weight each hook suits. Open →

Pattern helpers

For the moment a pattern says one thing and you need another.

• Increase & decrease evenly Tell it how many stitches you have and how many to add or take away: it writes the row or round, with increases or decreases spread evenly. Open →
• US ↔ UK terms Paste a crochet pattern to switch it between US and UK terms (US single crochet is a UK double crochet), with a side-by-side chart of every stitch name. Open →

Ideas

When you know you want to crochet, but not what.

• most used Random pattern generator Can’t decide what to make? Get a random free crochet pattern from our hand-picked roundups, filtered by the categories on this site (holidays, seasons, things to make). Open →