Crochet Gauge Calculator for Stitches and Rows

Divide the stitches in your swatch by the width you measured to get stitches per inch, multiply that by the finished width you want, and round to the nearest whole stitch. With 16 stitches over 4 inches you get 4 per inch, so a 20 inch piece starts with 80 stitches.

Yes. Switch the toggle to cm and the length fields convert, keeping your stitch and row counts. Gauge is then quoted per 10 cm, the span most metric patterns use, while the underlying math still works in inches.

The arithmetic is identical, stitches per inch times target width, and rows per inch times target height. Only the vocabulary differs, since crochet counts stitches and rows worked with a hook rather than cast-on stitches on a needle.

In this on-page tool every field is required, so you enter rows and height along with stitches and width. The underlying engine can skip the row calculation, but the form asks for all six values so it can also give you a total row count.

Stitches and rows are rounded half up to whole numbers, since you cannot work a fraction of a stitch. A gauge of 3.5 stitches per inch across 15 inches gives 52.5, which becomes 53 starting stitches.

Measure over 4 inches or more and let the tool divide. Counting across a wider span averages out small irregularities in tension and gives a far more reliable stitches-per-inch figure than a single-inch count.

The tool returns the raw count for your width and does not know your stitch pattern. Round its number up or down to a multiple of your repeat, and add any border, selvedge or turning stitches your pattern calls for.

It is an estimate built from your swatch. Real fabric shifts with hook size, yarn, and how tightly you work, so treat the result as a strong starting point and check it against a small test before committing to a big project.

No. The calculator runs in your browser, so the counts and measurements you type stay local. Only the separate JSON API sends values to a server.