Free quilt calculators
Quilt batting size calculator
Start with your finished quilt size. We add room around the edges, then tell you the batting rectangle to look for and whether a common packaged size covers it.
Your batting answer
Twinpackaged batting, 72″ × 90″
- Batting to cover
- 68″ × 88″
- Overhang each side
- 4″
How we figured this
- Your quilt plus 4″ of overhang on every side needs a batting piece of 68″ × 88″.
- A packaged Twin batting (72″ × 90″) covers that with room to spare.
- That's about 4⅝ square yards of batting by area — exactly how much you buy depends on your batting's roll width.
Before you cut
Use the finished quilt top measurement.
The calculator adds 4 inches of batting beyond every edge.
Compare the answer with the package label or your shop's roll width before buying.
Questions quilters ask
How much bigger should batting be than a quilt top?
This calculator adds 4 inches of overhang on every side, so the batting rectangle is 8 inches wider and 8 inches taller than the finished top.
What if no standard batting package fits?
For a larger quilt, look for batting sold from a wide roll or plan to piece batting according to the manufacturer's directions.