Quilt Fabric Calculator
Built by Johnny Alto · free, no sign-up · updated September 7, 2026
Enter a finished quilt size and square size to calculate the grid, number of squares, cut size, and fabric yardage for a simple patchwork top. The default quarter-inch seam is added automatically.
Example: A 60 by 72 inch quilt made with six-inch finished squares needs a 10 by 12 grid, or 120 squares. Cut each square at 6.5 inches with the default seam allowance.
Squares needed00 x 0
Cut each0inches square
Fabric (single print)0yards total
The yardage estimate uses full-width strips cut across the usable fabric width. It covers the patchwork top only, not backing, binding, borders, directional-print matching, or extra fabric for mistakes. Add 10 to 15 percent before buying.
Recommended gear
Cut accurate squares
How much fabric for a squares quilt?
A simple patchwork quilt is a grid of same-size squares. Divide the finished quilt width and length by the finished square size to see how many squares fit across and down; multiply those together for the total number of squares. The calculator rounds up so the grid always covers the quilt.
Each square is cut larger than its finished size so the seams have somewhere to go. With a quarter-inch seam allowance you add half an inch, so a six-inch finished square is cut at six and a half inches. For yardage, the calculator finds how many squares fit across the usable fabric width, rounds up to a whole number of strips, and converts the combined strip length to yards.
Common quilt sizes
The presets are planning sizes, not strict standards. Crib, throw, twin, full, queen, and king quilts vary by pattern, drop, mattress depth, and personal preference. Pick the closest preset, then replace the dimensions with the exact finished size from your pattern.
Single fabric or scrappy?
The yardage shown is the total if every square came from one print. Most quilts use several fabrics, so divide the total by how many prints you plan to use to get the amount of each. Always buy a little extra to allow for cutting mistakes and squaring up, and remember this covers the patchwork only, not backing, binding, or borders.
Frequently asked questions
How much fabric do I need to make a quilt?
For a squares quilt, divide the finished size by your square size to get the number of squares, then work out how many cut squares come from a yard of fabric. The calculator does both and gives total yardage.
What size should I cut quilt squares?
Cut each square its finished size plus twice the seam allowance. With a quarter-inch seam that is finished size plus half an inch, so a five-inch finished square is cut at 5.5 inches.
How many squares are in a quilt?
Divide the quilt width and length by the finished square size and multiply. A 60 by 72 inch quilt made of six-inch squares is a 10 by 12 grid, or 120 squares.
Does this include backing and binding?
No. This estimates the patchwork top only. Use the backing and binding calculators for those, since they are figured differently.
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This tool gives estimates for planning only. Confirm important decisions against your own measurements, product instructions, and relevant professional guidance. Some links are to our buying guides, which contain affiliate links. As an Amazon Associate I earn from qualifying purchases.
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