Stitch count and fabric size: calculate the finished dimensions
Calculate Aida dimensions, compare fabric counts, and add finishing margins with worked examples.
A chart's width and height are counts of stitch positions. Fabric count tells you how many of those stitches fit into one inch when working one full cross over one Aida square. Keep these two quantities separate: changing the fabric changes the physical size, while changing the chart dimensions changes the amount of picture detail and the number of possible stitches.
Use one formula for each direction
For Aida worked over one square, finished width in inches equals chart columns divided by fabric count. Finished height equals chart rows divided by fabric count. Multiply inches by 2.54 for centimeters. Work with the unrounded result until the end, especially when a frame has very little spare room.
A 120 by 160 stitch design on 16-count Aida measures 120 ÷ 16 = 7.5 inches wide and 160 ÷ 16 = 10 inches high. In centimeters, that is 19.05 by 25.4. Those numbers describe the stitched rectangle. They do not include fabric for a hoop, lacing, seams, a mat, or a fraying edge.
Compare the same chart on different fabrics
| Aida count | Width | Height |
|---|---|---|
| 14 | 10 in | 8 in |
| 16 | 8.75 in | 7 in |
| 18 | 7.78 in, approximately | 6.22 in, approximately |
The chart still contains the same 15,680 positions in every case: 140 × 112. A higher fabric count places them closer together. It does not remove confetti, create more facial detail, or change a symbol into a different color. DMC identifies 14-count Aida as a beginner option in its Aida fabric description; your eyesight, coverage preferences and finishing plan also matter.
Add a margin on both sides
If you choose a three-inch allowance on every edge, add six inches to the width and six to the height. Our 7.5 by 10 inch example would need a 13.5 by 16 inch cut before any additional allowance required by your chosen finish. Three inches is an example planning margin, not a rule for every project. Ask a framer or follow the sewing pattern when a particular finish has its own requirements.
Do not add the margin just once. Adding three inches to a 7.5-inch design leaves only 1.5 inches per side when centered. Also check whether a shop's listed fabric dimensions are measured before or after finishing the edges. Measure the actual piece rather than relying entirely on a package label.
Check the fabric and the chart before cutting
- Confirm whether the chart width includes any empty border cells.
- Measure a sample of the fabric count in good light.
- Calculate the stitched rectangle in both directions.
- Add separate allowances for the planned finish.
- Mark the center and verify the available space around it.
Evenweave needs an extra decision: the number of fabric threads crossed by each stitch. A 28-thread-per-inch fabric worked over two has an effective 14 stitches per inch. Do not divide by 28 while planning an over-two design. If you change to over-one stitching, redo the calculation and check whether the chart's detail and thread coverage remain suitable.
Finally, distinguish paper scale from fabric size. A chart may print with large, readable squares while representing tiny stitches on fabric. The printed grid is a counting aid. Your chart dimensions and the measured fabric count determine the finished embroidery.