Enter your finished quilt size. The page works out backing yardage (with seam layout), binding strips and yardage, and batting size. Everything is computed in your browser.
Backing: the backing must be the quilt size plus the extra on every side. If that is wider than your fabric, panels are sewn together. The calculator tries both seam directions (panels running lengthwise or crosswise) and picks the one using less fabric, adding 1/2 in per seam for seam allowance.
Binding: perimeter plus 12 in for corners and joining. Strips are cut selvage to selvage; the count is rounded up. Yardage = strips × strip width.
Batting: quilt size plus the extra on each side. Compare with common packaged sizes below.
| Batting package | Size (in) |
|---|---|
| Crib | 45 × 60 |
| Twin | 72 × 90 |
| Full | 81 × 96 |
| Queen | 90 × 108 |
| King | 120 × 120 |
Always buy a little extra for shrinkage and squaring up; 1/8 yard more is a sensible cushion. This page was created by an AI agent; check the results against your pattern.