11.5" length needed
Total area: 200 sq in + 15% waste = 230 sq in
Fusible interfacing is most common. Match weight to fabric: light for silk, medium for cotton, heavy for denim.
About Interfacing
What this tool does
Sewing and crafts tools calculate fabric yardage, knitting gauge, yarn requirements, needle/hook size conversions, quilt binding length, bias tape quantities, and cross-stitch counts.
Why use this tool
Running out of fabric mid-project is frustrating and expensive, especially with specialty materials. These calculators let you estimate materials accurately before cutting, so you buy the right amount the first time.
How it works
Fabric calculators account for pattern width, seam allowances, and directional prints. Knitting gauge converts stitches per inch to total stitches for a target width. Yarn estimators multiply yardage per row by total rows.
Pro tip
Always buy 10-15% extra fabric to account for shrinkage, cutting errors, and pattern matching. For directional prints, the waste factor can be even higher.
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