StitchablesStitchablesYardage and cut sizes for bias binding on curved edges
Enter your quilt dimensions to determine binding length, strips, and yardage.
Mode
Strips cut on the diagonal; more stretch for curves.
Typical: 42" or 43"
For mitered corners and joining ends
Bias wants to stretch. That's the whole point for curves, but it means you handle it differently. Press by lifting and setting the iron down — don't slide. Skip steam. Some quilters starch the fabric before cutting to add stability, then the starch washes out later.
The continuous bias method beats cutting individual strips every time. One fabric square, two seams, one long spiral cut — fewer joins in your binding and less waste. This calculator tells you what size square you need for the length of binding your quilt requires.
Pin generously on curves and ease the binding around — never tug it taut. For inside curves (the dips between scallop points), clip into the quilt's seam allowance so the edge can spread open to meet the binding. Go slow through those sections. Bias is more fabric and more work than straight-grain, but on curves it's the difference between a quilt that lies flat and one that doesn't.
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