Small tools, useful answers

Do the quilt math before the fabric is cut.

These calculators run entirely in the browser. They are designed for planning and shortlisting, with the limits made visible.

Finishing math

Quilt backing calculator

Estimate backing yardage from the quilt width, length, fabric width, and longarmer overage.

Stash comparison

Compare approximate fabric area between fat quarters, charm squares, layer-cake squares, and strips.