Quilt Batting Calculator

Calculate the batting size needed for your quilt top with proper overhang on all sides.

Results

Visualization

How It Works

Quilt batting should extend 3-4 inches beyond the quilt top on all sides to allow for quilting take-up and shifting during the quilting process. Cotton batting shrinks 3-5% when washed (giving a crinkly antique look), while polyester batting does not shrink. Pre-washing batting before quilting eliminates most shrinkage if you prefer a flat finish.