4 min read

Guide

Knitting Gauge: How to Knit and Measure a Gauge Swatch (and Why It Matters)

Short answer

Gauge is the number of stitches and rows in 4 in of knitting. To measure it, knit a square of at least 6 × 6 in with the pattern's yarn and needles, wash and dry it the way you'll treat the finished piece, and count the stitches across the middle 4 in. More stitches than the pattern? Go up a needle size. Fewer? Go down.

Why gauge matters

With chunky yarn, a single stitch makes a big difference to the size. For example: a 42½ in sweater at a gauge of 6 stitches to 4 in takes 64 stitches. If you get 7 stitches to 4 in, those 64 stitches measure only about 36½ in: 6 in smaller than planned. A swatch also shows whether you like the fabric: neither stiff nor too loose.

How to knit a gauge swatch, step by step

  1. Use the same yarn and needles you'll use for the project, and the stitch the pattern gives (usually stockinette).
  2. Cast on enough stitches for a swatch at least 6 in wide: the pattern gauge × 1.5, plus 4 edge stitches. With FACES at 6 stitches to 4 in, about 13 stitches.
  3. Knit at least 6 in high. If the pattern is knitted in the round, swatch in the round too: gauge changes.
  4. Bind off loosely, wash and dry flat, exactly as you'll treat the garment. Wool relaxes when wet and the measurement changes. See how to wash and block chunky wool.
  5. Measure in the middle, away from the edges, with a rigid ruler. Count the stitches across 4 in and the rows over 4 in, including half stitches.

What to do if your swatch doesn't match

Your swatchMeansWhat to do
More stitches per 4 in than the patternYou knit tightly: the garment will come out smallerBigger needles (one US size; with super bulky yarn, two or three)
Fewer stitches per 4 in than the patternYou knit loosely: the garment will come out biggerSmaller needles
Stitches match, rows don'tCommon for many knittersIf the pattern gives lengths in inches, it's fine: knit to the measurement

Change your needle size, not the way you knit: it's far more reliable.

Gauge of our yarns

YarnNeedlesStitchGauge in 4 in
FACES (7 oz / 109 yd)US 19 (15 mm)Stockinette6–6.5 sts × 9–10 rows
FACESUS 17 (12 mm)Garter stitch8.5 sts × 12 rows
FACESUS 15 (10 mm)2×2 rib8 sts × 13 rows
BeMe (3.5 oz / 131 yd)US 11 (8 mm)Stockinette12 sts × 16 rows
NOVA (1.75 oz / 164 yd)US 17 (12 mm)Stockinette6 sts × 11 rows
CROCHET CRUSH (raffia)US E-4 (3.5 mm) hookSingle crochet16 sts × 18 rows

These are the gauges from our patterns; yours may be half a stitch either way. To switch to another yarn, see how to substitute yarn in a pattern.

Tips for chunky yarn

  • Measure the whole swatch and divide. At 6 stitches to 4 in, half a stitch is about ⅓ in: measure the full width of, say, 12 stitches and work it out.
  • Count the Vs, not the gaps. In stockinette, each "V" is one stitch.
  • Don't stretch the swatch while measuring. Lay it on the table without pressing it flat.

Free US shipping on orders over $99, duties and taxes included.

FAQ

Do I really need a gauge swatch?
For hats and scarves you can skip it. For sweaters and fitted pieces, yes: it's the only way to get the size right.

How big should a gauge swatch be?
At least 6 × 6 in, so you can measure 4 in in the middle without the edges.

Do I have to wash it?
Yes. Wool changes size when washed; if you measure it unwashed, the garment may change later.

Which matters more, stitches or rows?
Stitches: they decide the width. Rows can be adjusted by knitting to the length in inches.

The Journal in your inbox

New lessons, as soon as they’re out