Gathered Fabric Calculator

Calculate how much fabric width you need for gathering to achieve your desired fullness.

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How It Works

Gathering creates fullness by sewing a wider piece of fabric to a narrower one. A 2x ratio (most common) means cutting fabric twice the finished width. Light gathering (1.5x) works for gentle drape, while 3x creates dramatic ruffles. For tiered skirts, each tier is gathered to the one above it, so lower tiers need exponentially more fabric.