Handy tools for yarn projects – work out how much yarn a pattern needs, match your gauge, convert hook sizes, and substitute one yarn for another. Each calculator runs instantly in your browser. New tools are being added to this category.
Crochet Yarn Calculator
How much yarn a crochet project needs
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Yarn Yardage Calculator
Convert grams and skeins to yardage
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Crochet Gauge Calculator
Turn your swatch into stitch counts
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Knitting Gauge Calculator
Match a pattern gauge for knitting
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Yarn Substitution Calculator
Swap one yarn for another safely
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Crochet Blanket Size Calculator
Stitches and rows for any blanket size
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Amigurumi Yarn Calculator
Yarn needed for amigurumi projects
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Crochet Hook Size Conversion
US, UK and metric hook sizes
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WPI Yarn Weight Calculator
Find yarn weight from wraps per inch
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How Much Yarn Do I Need
Quick estimate for any project
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