A multiple of 8 plus two edges
At 22 stitches per 10 cm, a 30 cm target suggests 66 stitches. Eight repeats of 8 plus 1 edge stitch on each side give exactly 66 stitches and a 30 cm width.
Find the closest cast-on count that fits a stitch multiple plus equal edge stitches. See the width that count will make.
Cast-on = full repeats × stitches per repeat + 2 × stitches per edge. At least one repeat.
Stitches to cast on
66stitches
8 × 8 + 2 × 1 = 66
Blocks show the structure; their widths are not proportional to stitch counts.
At 22 stitches per 10 cm, a 30 cm target suggests 66 stitches. Eight repeats of 8 plus 1 edge stitch on each side give exactly 66 stitches and a 30 cm width.
Enter the measured horizontal gauge and the wanted finished width. Set the full repeat size and the stitches outside the repeat on each side.
The calculator selects the nearest valid count: one or more full repeats plus two equal edges. If two counts are equally close it chooses the larger.
Use the actual width to decide whether the difference is acceptable. This horizontal count does not balance motifs, center a cable, or calculate row repeats.
Measure a swatch, set your dimensions, and see the stitches and rows.
Open calculator02Evenly distribute a row of increases or decreases without losing count.
Open calculator04Scale your real swatch weight into a rectangular project estimate.
Open calculatorNo. It means the number of extra stitches on each side, so the cast-on formula is repeats × repeat size + 2 × edge stitches.
The smallest supported count is one full repeat plus the two edges. It is shown even when wider than your target, with the size difference highlighted.
Only the multiple and equal outside edges are checked. Motif centering and any special starting or ending sequence remain your pattern decisions.