How to make a gauge swatch, step-by-step guide
A clear guide for beginners and experienced knitters alike.
A good gauge swatch takes a little time, but it saves you frustration and wasted materials. Follow this guide and you'll get it right from the very first try.
- 1
Cast on
Cast on at least 10 more stitches than you need for 10 cm.
- 2
Knit
Work at least 15 cm in the stitch pattern specified by the pattern.
- 3
Measure
Lay the swatch flat (don't stretch). Measure 10 cm in the centre, not at the edge.
- 4
Evaluate
Compare your stitch count with the pattern. If it differs, change needle size or convert.
Find a matching substitute yarn
Find a yarn alternative← Back to gauge swatch overview
Frequently Asked Questions
How many stitches do I need for a gauge swatch?
Cast on at least 10 more stitches than you need for 10 cm, for DK yarn (22 stitches per 10 cm) that's at least 32 stitches. This way you can measure away from the edge, where tension isn't distorted.
How large should the gauge swatch be?
At least 15 × 15 cm, ideally 20 × 20 cm. Measure in the centre of the swatch, not at the edge, for a more accurate result.
Do I need to wash and block the gauge swatch?
Yes, especially for wool and natural fibres! Wool shrinks slightly when washed; cotton and viscose stretch. Wash and block your swatch the same way as the finished piece, only then is the measurement accurate.
Can I use the gauge swatch as a yarn remnant later?
Yes! Gauge swatches are valuable samples. Keep them: they help you compare future projects and remind you of needle size and tension. Many knitters collect them as a reference library.