Quilt Block Calculator

Calculate how many quilt blocks you need to make a quilt of your desired size.

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Visualization

How It Works

The number of quilt blocks depends on finished block size, sashing (strips between blocks), and borders. Common block sizes are 6, 9, 10, and 12 inches finished. Remember that unfinished blocks are 1/2 inch larger than finished (for 1/4-inch seam allowances on each side). Borders are added last and can adjust the final quilt to standard mattress sizes.