Free Yarn Substitution Calculator for Knitting & Crochet

Need to calculate yardage from grams?

Choose the grams-to-yards calculator if you know how much yarn your project uses by weight. Enter the weight of one skein, the total yarn weight needed, and the meters listed on the yarn label. The calculator will estimate your total yardage and how many skeins you’ll need.

Need to figure out how many skeins to buy?

Choose the yards-to-skeins calculator if you know the total yardage required for your project. Enter the weight and yardage of one skein, along with the total yardage your project requires. The calculator will estimate the number of skeins to purchase.

How Much Yarn Should You Buy?

Your calculator result is an estimate based on the numbers you enter. Your actual yarn usage may vary depending on your gauge, stitch pattern, project size, and individual technique.

If your calculation gives you a fraction of a skein, round up to the next whole skein when purchasing full skeins. For projects that require a specific color or dye lot, buying all the yarn you need at once can also help you maintain a more consistent look.

When substituting yarn, remember that two skeins with the same weight can contain different amounts of yarn. Always compare the yardage per skein as well as the yarn weight.