Custom Ribbed Scarf & Infinity Cowl Pattern Generator

The stitch: post-stitch rib (even number of stitches)

Each row alternates a front-post and a back-post double crochet between two edge stitches. Because the stitch count is even, the same row repeated on both sides keeps the raised and recessed columns aligned, building vertical ribs. Post stitches wrap around the stitch below and use about 60 % more yarn than plain double crochet.

How this generator calculates the pattern

The generator converts your target size into stitches and rows with your gauge (stitches and rows per 10 cm). The foundation chain is then rounded to the nearest count that respects the stitch multiple of the pattern (Even number), so the repeat always ends exactly at the edge of the row. The number of rows is rounded to the nearest whole row, and the finished size shown in the schematic is recalculated from those whole numbers, so what you see is what you will crochet.

Construction

The scarf is worked in short rows across its width, so the ribs run along its length. For a cowl, the short ends are whip-stitched together; a half twist before seaming turns it into a Möbius cowl.

Why your gauge matters

Two crocheters using the same yarn and hook can easily differ by 10–15 % in tension. When you choose a yarn, the gauge is pre-filled with an estimate from the Craft Yarn Council standard for its weight category; it is only a starting point. Crochet a swatch of at least 12 × 12 cm in the pattern stitch, block it as you will block the finished piece, count the stitches and rows in the central 10 cm and type them in: every number in the pattern follows.

How much yarn you need

Yarn length is estimated with our calibrated model: metres = area ÷ 100 × 0.82 × √(metres per 100 g) × stitch factor, plus a 10 % safety margin. The stitch factor comes from our stitch database (for example, single crochet 1.30, double crochet 1.00, waffle stitch 1.85). Buying all the balls from the same dye lot avoids visible colour bands.