What It Does
The Yardage Calculator reads your entire quilt design and computes how much fabric you need for each color in your layout. It accounts for block size, grid dimensions, the number of times each fabric appears, and the shapes involved. The result is a per-fabric breakdown in yards, rounded up to the nearest standard cut, so you know exactly what to put on the cutting counter.
Beyond block fabrics, the calculator handles the extras that are easy to forget. If your design includes sashing, it calculates sashing yardage separately. Borders are computed based on quilt dimensions. A dedicated backing calculator tells you how many yards of 42-inch or 108-inch wide backing fabric you need, and the binding calculator computes yardage for continuous bias or straight-grain binding strips.
A seam allowance toggle lets you switch between the standard quarter-inch seam allowance and custom values. The calculator adds seam allowance to every piece automatically, so the yardage numbers reflect what you will actually cut, not just the finished size.
Standard seam allowance: 1/4 inch
QuiltWall uses the quilting standard of 1/4" seam allowance by default. You can toggle this on or off in the calculator settings. When enabled, every piece measurement includes the allowance, and the total yardage reflects the real cutting size.