Cross Stitch Calculators
Fabric count is stitches per inch on Aida, or threads per inch on evenweave and linen. Stitching over two threads changes the effective count.
One calculator covers that size question. A separate fabric-only page would repeat the same task, so this hub keeps a single canonical tool and a guide to fabric count.
Cross Stitch Calculator
Turn a stitch count and fabric count into finished size and a cut size with the margin you choose.