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Knitting gauge calculator
Count the stitches and rows in your swatch, and this turns them into a cast-on number for any size. It also converts a pattern's stitch count when your gauge doesn't match.
How it works
Stitches to cast on = stitches in your swatch × the width you want ÷ the swatch width. Rows work the same way with the length. With 22 stitches in 10 cm, a 50 cm width needs 22 × 50 ÷ 10 = 110 stitches.
To keep a pattern's size at a different gauge, multiply its stitch count by your gauge and divide by the pattern's gauge.
Questions people ask
What is gauge?
Gauge (called tension in the UK) is how many stitches and rows you get in a set size, usually 10 cm or 4 inches, with your yarn and needles.
How do I adjust a pattern if my gauge is different?
Multiply the pattern's stitch count by your gauge and divide by the pattern gauge. For a pattern of 100 stitches at 20 stitches per 10 cm, with your gauge at 22, you need 100 × 22 ÷ 20 = 110 stitches for the same width.
Why is the result an estimate?
Gauge changes a little across a piece and between swatch and garment, and stitch counts are rounded to whole stitches. Patterns often need a multiple of a stitch repeat, so round to the nearest count that fits the pattern.