Quilting Calculators

Quilting calculators on this site compare the quantities you actually cut: backing panels in both directions, straight-grain binding strips, butt-joined borders, and block grids with explicit sashing.

Usable fabric width, overage, and seam allowance start from common planning values and remain editable. They are not labeled as a single industry standard.

Quilt Backing Calculator

Compare vertical and horizontal backing panels, then round the purchase length up to the increment you set.

Quilt Binding Calculator

Estimate straight-grain binding strips, including the length lost at each diagonal join.

Quilt Border Calculator

Cut straight, butt-joined borders one layer at a time and estimate the strip length to buy.

Quilt Block Calculator

Count blocks across and down for a target size, with between-block sashing and outer sashing kept separate.

Bias Binding Square

See the area-based square that contains the binding length you need. It is not a guaranteed cut yield.