6 free craft math calculators
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Cut and cast on with confidence.

Sewing, quilting, knitting, and cross-stitch math — fabric yardage, binding, backing, gauge, yarn, and fabric size. Every formula shown.

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Fabric Yardage Calculator

Yards to cut the pieces you need — enter your pieces and fabric width, get total yardage with seam allowances.

Calculate yardage

Quilt Binding Calculator

Binding strips and fabric for any quilt — perimeter, strip count, and total yardage from your quilt dimensions.

Calculate binding

Knitting Gauge Calculator

Stitches and rows to cast on — converts your gauge swatch to the exact stitch count for your finished dimensions.

Calculate gauge

Knitting Yarn Calculator

Yardage and skeins to buy — estimates total yarn needed from your pattern gauge and project dimensions.

Calculate yarn

Cross Stitch Fabric Calculator

Finished size and fabric to cut — stitch count, design dimensions, and aida fabric size with border margins.

Calculate fabric size

Quilt Backing Calculator

Backing yardage, with piecing — horizontal or vertical seam layout, overhang, and total fabric to buy.

Calculate backing

Guides

Plain-English help: how to measure fabric yardage, understand knitting gauge, and plan quilt backing and binding.

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