Converting gauge, make any pattern work
Your yarn has different values than the pattern? No problem, use this method to convert quickly.
When you use a substitute yarn or simply knit differently than the pattern assumes, you need to convert the gauge. It sounds complicated, but a simple formula makes it straightforward.
The Formula
Conversion factor = stitches in the pattern ÷ your own stitches
Multiply every stitch count in the pattern by this factor and your finished piece will come out the right size. The same logic applies to rows: row factor = rows in the pattern ÷ your own rows.
Two Examples
Your swatch is tighter than the pattern
Imagine this: the pattern calls for 22 stitches over 10 cm, but your swatch comes out at 25. That often happens when you switch to a finer yarn or simply tend to knit tightly.
Factor = 22 ÷ 25 = 0.88
Your factor is 0.88. Wherever the pattern says 100 stitches, you cast on 88 instead. It still works out because your stitches are smaller, so you need fewer of them.
Your swatch is looser than the pattern
This time your swatch shows only 18 stitches over 10 cm, but the pattern expects 22. Common reasons: a chunkier yarn, larger needles, or a naturally relaxed tension.
Factor = 22 ÷ 18 = 1.22
Your factor is 1.22. Every 100 stitches in the pattern becomes 122 for you. You knit looser, so you need more stitches to reach the same width.
Find a matching substitute yarn
Open the gauge calculator← Back to gauge swatch overview
Frequently Asked Questions
How do I convert a gauge swatch?
Divide the target stitches (from the pattern) by your actual stitches (from your swatch). The result is your conversion factor. Multiply all stitch counts in the pattern by this factor.
What is the conversion factor?
The conversion factor is the ratio of target stitches to actual stitches. If it's less than 1, you're knitting more tightly than the pattern. If it's greater than 1, you're knitting more loosely.
Do I also need to convert the row count?
For the width of a piece, stitches matter. For the length, rows matter. If your row gauge also differs, you should adjust row counts too, especially for decreases and increases. You should definitely convert when knitting for someone else and trying on isn't possible: there's no opportunity to measure as you go.
What if the conversion factor is very far from 1?
For a factor below 0.85 or above 1.15 we recommend either changing needle size or choosing a yarn with a more similar gauge. Large deviations make conversion error-prone.