Fabric & sewing calculators

Upholstery Fabric Calculator

Estimate fabric for rectangular seat tops, cushion faces and boxing strips. Complex furniture shapes and pattern matching require a professional cutting plan.

Estimate fabric for a simple cushion or seat

Units

Number of cushions/seats

Finished length (in)

Finished width (in)

Boxing/depth (in)

Seam allowance per edge (in)

Usable fabric width (in)

Cutting/pattern allowance (%)

Included pieces and limitations

This estimate includes two large faces per cushion and a continuous boxing strip based on the perimeter and depth. It is a simplified rectangle-based estimate and assumes all parts can be arranged on the usable width.

It does not calculate piping, zippers, skirts, arm panels, back panels, tufting, complex shapes or directional pattern matching. For a sofa or chair, use a furniture-specific cutting plan or consult an upholsterer.

Related fabric tools

Estimates are for planning, not a substitute for checking your pattern, supplier specifications, fabric grain, usable width, shrinkage and pattern repeats.