Tools
Tools & Calculators
Quick calculators for the questions that come up mid-project — sizing, substitutions, and how much yarn to buy.
Hook & Needle Size Converter
Pick a metric size, see the US and UK equivalent instantly.
Yarn Weight & Substitution Finder
Gauge, tools, and realistic substitutes for any yarn weight.
Gauge Calculator
Scale a cast-on to your gauge, or adjust a pattern's stitch count.
Yarn Amount Estimator
A rough yardage estimate by project type, size, and weight.
Stitch Pattern Repeat Calculator
Find a cast-on that lands exactly on your stitch pattern's repeat.
Random Stitch Generator
Not sure what to practice? Shuffle for a random stitch to try.