Use the Yarn Calculator to determine how much yarn you need for your next project. Whether you’re knitting a scarf, hat, blanket, or sweater, this calculator can help you plan your yarn requirements accurately.

Yarn Calculation Formula

The following formula can be used to estimate the amount of yarn needed for your project.

Yarn Needed = (Project Size * Yarn Weight Factor) / Gauge Factor

Variables:

  • Yarn Needed is the total length of yarn required (yards)
  • Project Size is the size of your project (e.g., length of a scarf in inches)
  • Yarn Weight Factor is a multiplier based on the weight of the yarn used
  • Gauge Factor is the number of stitches per inch

To calculate the yarn needed, multiply the project size by the yarn weight factor and divide by the gauge factor.

What is Yarn Calculation?

Yarn