Knitting gauge and yarn calculators
Gauge decides the size of everything you knit, and yarn is sold by length, not by the skein count a pattern prints. These calculators turn your swatch and your yarn label into the numbers you need before casting on.
Calculators in this section
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Knitting gauge calculator
From a swatch to the stitches to cast on and the rows to knit.
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Knitting gauge conversion calculator
What a pattern's stitch count measures at your gauge, and how to correct it.
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Yarn substitution calculator
How many skeins of a different yarn a pattern needs.
Which calculator do I need?
Are you designing your own piece or resizing one? Use the knitting gauge calculator for the stitches to cast on and the rows to work.
Does your swatch not match the pattern? Use the knitting gauge conversion calculator to see the size you would get and which size to follow instead.
Are you using another yarn than the pattern names? Use the yarn substitution calculator for the number of skeins.