Free tools for every fiber crafter

Calculate exactly how much yarn you need for any project — blankets, sweaters, scarves, and more.

Instantly convert knitting needle and crochet hook sizes between US, UK, metric, and Japanese systems.

Calculate your gauge from a swatch, resize patterns to a new gauge, and get exact stitch counts.

Interactive yarn weight chart with US, UK, and Australian names — plus a substitution compatibility checker.

Free online stitch counter with multiple counters, row reminders, and offline support. No login needed.

Find the right stitch count, row count, and yarn yardage for any blanket size from baby to king.

Get stitch-by-stitch instructions for distributing increases or decreases evenly across a row or round.

Generate random or structured stripe patterns with per-color yardage estimates for stash-busting projects.

Searchable glossary of knitting and crochet abbreviations with US/UK toggle and stitch descriptions.

Calculate drive ratios, twists per inch, and plying ratios for handspinning — the only online tool for spinners.