Free Crochet Tools and Calculators
Quick, honest crochet helpers you can use right in your browser. No signup, no app, no math. Pick the one you need and get a straight answer, whether you are converting a hook size from a foreign pattern or working out how many skeins to buy.
Crochet Hook Size Converter
Convert any hook size between millimeters, US letters and numbers, and old UK numbering. Based on the official Craft Yarn Council standard, with the steel-hook system covered too.
Open the hook converter →How Much Yarn Do I Need?
Pick your project and yarn weight and get an honest yardage estimate plus roughly how many skeins to buy. Real ranges from standard yarn charts, no false precision.
Open the yarn calculator →Crochet Gift Deadline Calculator
Tell it how many weeks you have and what you want to make, and it tells you honestly whether you can finish in time. Perfect for planning holiday gifts.
Open the deadline calculator →New to crochet?
Grab our free Crochet Starter Pack: the core stitches, yarn and hook basics, and a beginner-friendly pattern, sent straight to your inbox.
Looking for something to make? Browse all our free crochet patterns, or learn how to read a crochet pattern before you start.