Knitters and small knitwear makers who size their own pieces or resize a bought pattern, and pattern writers who would rather ship counts that hold at more than one gauge.
How it works
- Count a blocked swatch over 10 cm - stitches and rows - and read your gauge.
- List the pieces with the width and length you want them to finish at.
- Weigh the blocked swatch and enter the ball size: the yarn estimate becomes arithmetic.
- Enter a pattern's gauge to see what its stitch counts come out as on yours, and spread any shaping evenly.
What you gain
- Converts your knitted swatch into the real stitch and row counts each piece needs, and works out how much yarn to buy by weight so you don't run short halfway through.
Screenshot

Technical details
How to set up & use
- Buy the license — your key (lic_...) appears on the order page and in your email.
- Sign in at app.synoriaai.com with your license key.
- No installation — the product runs in your browser, on your own isolated instance.
- 1. Enter your stitch and row counts from a 10 cm swatch, then save them.
- 2. Add each piece of your garment by name, width, and length in centimetres.
- 3. See the stitch and row counts per piece, calculated from your saved gauge.
- 4. If you weighed your swatch, enter its weight to get yarn estimates by piece.
- 5. Review the results, including any shaping spread and leftover counts.
Frequently asked questions
What data does this product store about my swatch or project?
All figures you enter are kept only in your browser session unless you save them locally. No gauges, yarns, or sizes are embedded or sent to a server.
Does this product calculate yarn amounts for any yarn brand or type?
No. It only estimates yarn by weight based on the grams per square centimetre of the swatch you weighed. It does not know specific yarn properties or dye lots.
What happens if my target stitch count cannot be reached with my gauge?
The product will clearly state that the target cannot be reached at that many stitches per shaping row and show the leftover count instead of hiding it.
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