Crochet Tools
Hook size converter
Convert crochet hook sizes between metric (mm), US and vintage UK.
Open tool →Yarn weight chart
Names, recommended hooks and gauge for every weight, from lace to jumbo.
Open tool →Gauge calculator
Check your gauge against a pattern and work out starting stitch counts.
Open tool →Yardage calculator
Work out how many balls of yarn you need, and convert metres ↔ yards.
Open tool →Abbreviations
US and UK crochet terms and abbreviations, side by side.
Open tool →