Estimate how much yarn a project needs from the project type, size, needle size and gauge. Enter the details and see an approximate length in yards and meters, plus a weight in grams and ounces. This is a rough planning estimate for shopping, not a guarantee — different yarns, stitch patterns and tension change the real amount, so always buy a little extra and check the yarn label. All processing runs locally in your browser. Your data is not uploaded to any server. 100% Local
How to Use the Yarn Calculator
Choose the project type and size, pick your needle size, then enter your gauge in stitches per 10 cm. Press Calculate yarn to see an approximate length in yards and meters and a weight in grams and ounces.
What it accounts for
Base yardage per project type, scaled for small, medium and large.
Your gauge and needle size, which change how much yarn the same project uses.
Weight converted from length using a typical yarn weight for that gauge.
Getting a better number
Knit a swatch and measure your own gauge first — it is the single biggest factor. Cables, colourwork and loose tension all use more yarn, so round up and buy one extra ball. Always treat the result as an approximate estimate, not a quote.
Features
Estimated yarn length in yards and meters, and weight in grams and ounces
Project types for scarves, hats, sweaters, blankets, socks and shawls
Adjusts for size, needle size and gauge
Copy or download the estimate as a text file
All processing runs locally in your browser. Your data is not uploaded to any server.
Results are approximate estimates only — not a quote. Yarn is sold by weight and length varies by fibre, so check the yarn label and your own swatch, and buy extra for safety.