Quilt block calculator
Enter the quilt size you want (before borders) and the finished block size.
Cut each block at
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| Layout | Blocks | Quilt size |
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Frequently asked questions
What is the difference between finished and cut size?
The finished size is what shows in the quilt after sewing. The cut size adds a seam allowance on every side: with ¼ inch seams, a 6 inch finished square is cut at 6½ inches.
Why does the calculator show two layouts?
Blocks rarely divide a quilt exactly. You get the nearest layout that is a little smaller and one that is a little larger. Borders are an easy way to make up the difference.
What is sashing?
Strips of fabric sewn between blocks and around them. Enter the finished sashing width, or 0 if the blocks are sewn straight together.
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