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Yarn Calculator

Calculate exactly how much yarn you need for your knitting project. Enter your gauge and project dimensions below.

Project Details

Finished width of your project
Finished height/length of your project

Gauge Information

Number of stitches per inch from your gauge swatch
Leave blank to use stitch gauge for row calculations

Yarn Information

Total yards in each skein/ball of yarn
Accounts for seaming, weaving ends, and waste (85% is typical)

Advanced Options

From your swatch. Leave blank to use yarn weight heuristics.
Used only if yards per 1000 stitches is not provided
Enter to calculate total project cost

💡 Helpful Tips

  • Always knit a gauge swatch for accurate results
  • Measure your swatch after blocking
  • Add 10-15% extra yarn for larger projects
  • Consider buying an extra skein for repairs
  • Check dye lots when purchasing multiple skeins

Yarn Efficiency Guide

Project Type Efficiency
Simple rectangular 90-95%
Sweater/cardigan 80-85%
Complex shaping 75-80%
Colorwork 70-75%