Quilt binding calculator
A 90″ × 108″ queen quilt needs 11 binding strips 2½″ wide, which is 7/8 yd of fabric. Enter your own quilt size and strip width below.
Binding chart
Strips cut across 42″–44″ fabric, joined with diagonal seams, plus 12″ for joining and corners.
| Quilt | Size | Binding length | 2½″ strips | 2¼″ strips |
|---|---|---|---|---|
| Baby | 36 × 52 | 188″ | 6 (1/2 yd) | 5 (3/8 yd) |
| Crib | 45 × 60 | 222″ | 6 (1/2 yd) | 6 (3/8 yd) |
| Throw | 60 × 70 | 272″ | 8 (5/8 yd) | 8 (1/2 yd) |
| Twin | 70 × 90 | 332″ | 9 (5/8 yd) | 9 (5/8 yd) |
| Full | 84 × 90 | 360″ | 10 (3/4 yd) | 10 (5/8 yd) |
| Queen | 90 × 108 | 408″ | 11 (7/8 yd) | 11 (3/4 yd) |
| King | 108 × 108 | 444″ | 12 (7/8 yd) | 12 (3/4 yd) |
Backing, binding & batting cheat sheet
How much to buy for baby to king quilts, with two blank rows for your own. Take it to the fabric shop.
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Binding for common quilt sizes
- 36 × 36Baby
- 36 × 52Baby
- 40 × 40Baby
- 40 × 60Crib
- 45 × 60Crib
- 50 × 60Throw
- 50 × 65Throw
- 54 × 72Throw
- 60 × 60Throw
- 60 × 70Throw
- 60 × 72Throw
- 60 × 80Throw
- 66 × 90Twin
- 70 × 90Twin
- 72 × 90Twin
- 80 × 90Full
- 84 × 90Full
- 86 × 100Full
- 84 × 102Queen
- 90 × 100Queen
- 90 × 108Queen
- 92 × 108Queen
- 100 × 100King
- 108 × 108King
- 110 × 110King
- 120 × 120King
How quilt binding is calculated
Binding length = perimeter + about 12″ for joining. Each width-of-fabric strip gives roughly 40″, less one strip width for each diagonal join. Strips × strip width = fabric to buy, rounded up to the next ⅛ yard. Full method and assumptions.
Learn it by doing: See how binding strips are cut, joined and sewn on.
Questions quilters ask
How do I calculate how much binding I need?
Add the four sides of the quilt and about 12 inches for joining and corners. Divide by 37.5 inches (a 40 inch strip less 2.5 inches for the diagonal join) to get the number of strips, then multiply the strips by the strip width. A 90 x 108 inch queen quilt needs 11 strips 2.5 inches wide: 7/8 yd.
How wide should I cut binding strips?
2.5 inches is the most common width for double-fold binding on quilts with cotton batting. 2.25 inches gives a narrower, tighter binding; 2.75-3 inches suits thick or wool batting.
How much fabric do I need for binding a throw quilt?
For 60 x 70 inches: 8 strips 2.5 inches wide, which takes 5/8 yd (272 inches of binding).
Do I need bias binding?
Only for curved or scalloped edges. Straight-grain strips cut across the width of fabric are fine for quilts with square corners, and they use less fabric.
Updated 2026-11-14.
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