If you have only crocheted solid-color work, a color chart looks like a spreadsheet. This is how I read one, written while building a free chart maker for single-crochet colorwork.
One square, one stitch
Each square is one stitch. Each color is a yarn. Rows are worked bottom to top.
Direction alternates
In flat, back-and-forth work you usually read row 1 right to left, row 2 left to right, and so on. Some patterns differ, so check the notes of the pattern you follow.
Color runs
A run is a group of same-color squares in a row. If a row says 5 blue, 3 white, 5 blue, that is 13 stitches. Counting runs is faster than counting squares.
What makes a chart hard to work
- Lone single cells of a different color (an extra yarn change for one stitch)
- Many colors in one row
- Very long runs, which may need the unused yarn carried
Sizing from your swatch
Measure stitches and rows per 4 inches, then:
stitches = width_in * stitches_per_4in / 4
rows = height_in * rows_per_4in / 4
I wrote up worked examples here: https://crochet-graph-maker.netlify.app/crochet-graph-size-calculator.html and how to prepare a picture here: https://crochet-graph-maker.netlify.app/prepare-image-for-crochet-graph.html
The free tool (images stay in your browser): https://crochet-graph-maker.netlify.app/
Disclosure: I made the tool, and this post was written with AI assistance. Numbers above are examples, not a guarantee of finished size.
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