How this calculation works
The fabric label describes its underlying grid. When one cross spans two threads on evenweave, two labelled thread intervals make one stitch. The effective stitches per inch are halved, so a chart becomes twice as wide and twice as high compared with over-one stitching on that same fabric count.
Stitches per inch = fabric count / threads worked over; design width = stitch count / stitches per inchA worked example
A 140 × 196 stitch design on 14-count fabric over one measures 10 × 14 inches. Three inches on each side makes the cut fabric 16 × 20 inches.
Good to know
A margin entered per side is doubled when finding the complete cut width or height. The page separates design size from cut size to keep this allowance explicit. It does not calculate floss use or determine a safe framing margin; check your finishing method and measured fabric before cutting.
Reference: Utah State University Extension — sewing resources (opens in a new tab) ↗
Thread count and stitch count can differ
The fabric label describes its underlying grid.
When one cross spans two threads on evenweave, two labelled thread intervals make one stitch. The effective stitches per inch are halved, so a chart becomes twice as wide and twice as high compared with over-one stitching on that same fabric count.
The Fabric shrinkage and prewash purchase calculator can check a measured preparation change before cutting. Keep the stitching-count convention and the fabric washing allowance as separate assumptions.
Leave the finishing margin visible
A margin entered per side is doubled when finding the complete cut width or height.
The page separates design size from cut size to keep this allowance explicit. It does not calculate floss use or determine a safe framing margin; check your finishing method and measured fabric before cutting.
Compare equivalent Aida and evenweave counts
Fourteen-count fabric worked over one and twenty-eight-count fabric worked over two both give fourteen stitches per inch. The same chart should therefore produce identical design dimensions. This is a useful consistency check before deciding between fabrics with differently labelled grids.
A three-inch margin means six additional inches across the full cut width. It is not divided between the two sides. The centimetre values use the exact conversion of 2.54 centimetres per inch, but your fabric can still shrink or distort. Confirm physical dimensions after preparation before committing to the final cut.
Work through the entered example
A 140 × 196 stitch design on 14-count fabric over one measures 10 × 14 inches. Three inches on each side makes the cut fabric 16 × 20 inches.
Start with this case, then change one input and calculate again. Keep the other assumptions fixed so the result has an interpretable cause. The result table exposes intermediate quantities and units rather than hiding them behind a single headline number.
Use the output in a real plan
A margin entered per side is doubled when finding the complete cut width or height. The page separates design size from cut size to keep this allowance explicit. It does not calculate floss use or determine a safe framing margin; check your finishing method and measured fabric before cutting.
Before purchasing material or comparing alternatives, check the measurements at the point where they enter the calculation. A mathematically precise answer can still be a poor plan when the measured size, loss allowance or price basis is wrong. Save the input assumptions with any result you intend to reuse.
A few questions, answered
What is the calculation method?
Stitches per inch = fabric count / threads worked over; design width = stitch count / stitches per inch
Does this use live prices or automatic measurements?
No. All measurements, prices and allowances come from your entries. The example values are illustrative and are not a recommendation for your situation.
Can I reuse the result for a different case?
Change the inputs and calculate again. Read the stated units and limits; the assumptions must still apply to the new case.