Pattern resize calculator
Convert a pattern's stitch counts to your gauge without breaking its stitch repeat.
Change the finished size, or convert the row counts
Leave blank to keep the pattern's own finished width.
The rows you're converting.
Leave at 1 if there isn't one.
Leave blank to keep the pattern's own length.
Live gauge preview
5 stitches per inch, 7 rows per inch
Your result
Based on your blocked gauge. Unblocked swatches lie.
What this calculation does not account for
- Shaping. This converts a flat stitch count. It does not resize an armscye, a sleeve cap, or a raglan rate because those need real garment-construction judgment, and getting them wrong ruins a garment.
- Lace and openwork, which can open up dramatically after blocking and stop matching your swatch.
- Colourwork, where your tension differs from your plain-fabric gauge.
- Ease. The pattern's intended ease carries over unchanged. If the original ran loose on you, so will this.
- Two interacting repeats. If a pattern has both a stitch repeat and a separate colourwork repeat, reconcile them yourself before entering a multiple.
How to use this
- Copy the pattern's gauge exactly as printed: the stitch count and the span it was measured over.
- Enter the stitch multiple if the pattern gives one. "Multiple of 4 + 2" means 4 in the first box and 2 in the second. If there isn't one, leave 1 and 0.
- Enter your own gauge from a blocked swatch worked in the pattern's stitch. The result updates as you type.
A worked example
Priya has a cardigan pattern written at 18 stitches over 4 inches. She knits at 20 stitches over 4 inches, making a tighter fabric. The pattern says cast on 96, in a multiple of 6.
Pattern gauge 18 sts ÷ 4 in = 4.50 sts/in
Pattern width 96 sts ÷ 4.50 = 21.33 in
Her gauge 20 sts ÷ 4 in = 5.00 sts/in
Raw stitches 21.33 in × 5.00 = 106.7
Valid counts 102, 108, 114 (6n)
Cast on 108 stitches
Her cardigan comes out 21.6 inches wide against the pattern's 21.3, a third of an inch larger, because 108 was the nearest count her stitch repeat allows. Casting on the pattern's 96 at her gauge would have given her 19.2 inches: over two inches too small, and unwearable.
Why it rounds up on a tie
When the raw stitch count lands exactly halfway between two valid counts such as 110, between 108 and 112 for a multiple of 4, this roundsup, not to the nearest even number and not down. A piece slightly too large is still wearable. Slightly too small is not. If you check our arithmetic by hand and get the lower number, that is why.
Related calculators
Don't know your gauge yet? Measure a blocked swatch first. Every number here depends on it.