Cross stitch fabric size calculator
Start with the width and height in stitches printed on your chart. The stitched width is stitch count divided by stitches per inch. Add your chosen border twice: once for each side. For evenweave worked over two threads, divide the fabric count by two first.
Example: 140 stitches on 14-count Aida make a 10-inch-wide design. A 3-inch border on each side requires 16 inches of usable fabric width. This does not estimate thread quantity or account for washing shrinkage.
Check the definitions against DMC’s Aida description and the calculation structure at Yarn Tree.