Pre-cut quilt calculator
A 90″ × 108″ queen quilt top needs 4 jelly rolls, 3 layer cakes or 12 charm packs. Type your own size below to see all three.
Pre-cuts by quilt size
For a top made from one kind of pre-cut, sewn with ¼″ seams. Jelly rolls: 2½″ strips (2″ finished) joined into rows across the quilt. Layer cakes and charm packs: squares set side by side. Standard packs: 40 strips, 42 layer-cake squares, 42 charms.
| Quilt | Size | Jelly rolls | Layer cakes | Charm packs |
|---|---|---|---|---|
| Baby | 36 × 52 | 124 strips | 124 squares | 396 squares |
| Crib | 45 × 60 | 135 strips | 135 squares | 4140 squares |
| Throw | 60 × 70 | 254 strips | 256 squares | 6224 squares |
| Twin | 70 × 90 | 280 strips | 280 squares | 8320 squares |
| Full | 84 × 90 | 396 strips | 390 squares | 10380 squares |
| Queen | 90 × 108 | 4124 strips | 3120 squares | 12480 squares |
| King | 108 × 108 | 4148 strips | 4144 squares | 14576 squares |
How it's worked out
- Layer cakes and charm packs: finished square = 9½″ (layer cake) or 4½″ (charm). Squares across = width ÷ finished size, rounded up; the same down. Packs = squares ÷ 42, rounded up. For the queen: 10 × 12 = 120 layer-cake squares → 3 packs.
- Jelly rolls: each strip is about 40″ once the selvages are off, less ½″ for each join. Rows = length ÷ 2″; strip length = rows × width. For the queen: 54 rows × 90″ ÷ 39½″ = 124 strips → 4 rolls.
- Pack sizes vary a little by maker (some charm packs have 40 squares, some jelly rolls 42 strips): check the label.
Cutting your own squares from fat quarters? See how many fat quarters for a quilt. Backing and binding are extra: backing, binding.
Questions quilters ask
How many jelly rolls do I need for a queen size quilt?
4 jelly rolls for a 90 x 108 inch queen quilt made of strips: 54 rows of 2 inch finished strips need 124 strips, and a jelly roll has 40.
How many layer cakes for a queen size quilt?
3 layer cakes: a 90 x 108 inch top of 10 inch squares (9 1/2 inch finished) takes 10 x 12 = 120 squares, and a layer cake has 42.
How many charm packs for a throw quilt?
6 charm packs for a 60 x 70 inch throw of 5 inch squares (4 1/2 inch finished): 224 squares at 42 per pack.
What size quilt does one jelly roll make?
One jelly roll (40 strips of 2 1/2 x 42 inches) sewn end to end into rows covers about 3,100 square inches finished, for example a 50 x 62 inch throw. A classic jelly roll race quilt from one roll is about 50 x 64 inches.
How many layer cakes or charm packs for a king quilt?
4 layer cakes or 14 charm packs for a 108 x 108 inch king quilt top made of squares.
Updated 2026-11-14. How we calculate.
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