How Many Jelly Roll Strips Do I Need? Quilt Size Chart & Strip Math

Updated September 2026 · By the ThreadWorks team

What Is in a Jelly Roll?

Island Batik strip packs, for example, are 40 precut 2½" × 44" strips. Always check the strip count and length on the listing before you do your math.

Jelly Roll Quilt Size Chart

For quilts made entirely from strips (no background fabric), one jelly roll covers roughly 3,200 square inches of finished quilt top: 40 strips × 2" finished × about 40" usable length. The chart is based on that, rounded up to whole rolls.

Patterns that combine strips with a background fabric use far fewer strips, often one roll for a twin or queen. If you are following a pattern, its fabric requirements win. Borders also stretch a roll: a 6" border adds 12" to each dimension without using a single strip.

The Math, if You Are Designing Your Own

1. Strips across: divide the finished width you want by 2 (each strip is 2" finished). A 60"-wide quilt needs 30 strip-widths.
2. Length per strip: one width-of-fabric strip gives about 40" of usable length after trimming selvages. If your quilt is longer than 40", join strips end to end.
3. Total strips: strips across × strips needed per row. Divide by 40 and round up to get rolls.
4. Add 10% for straightening, mistakes and color balance.

The Jelly Roll Race: One Roll, One Afternoon

The best-known one-roll quilt. Sew all 40 strips end to end into one very long strip (about 1,600"). Fold it in half and sew along the long edge, cut the fold, then repeat until the top is 32 strips wide. The result is about 50" × 64", a generous throw or a large baby quilt, usually in a single afternoon. Diagonal seams where strips join make the joins less noticeable.

What Else You Can Cut From 2½" Strips

Binding from a jelly roll: a 90" × 108" queen has a perimeter of 396". Add about 10" for joining, divide by 40, and you need about 11 strips. A 60" × 70" throw needs about 7. For technique, see How to Bind a Quilt.

Best Quilts to Make With Jelly Rolls

• Jelly roll race: the fastest possible quilt top.
• Rail fence and strip-set quilts: sew three or four strips together, cross-cut into blocks and rotate.
• Log cabin: 2½" strips are the classic log width.
• Stacked coins: cross-cut strips into rectangles and stack them in columns with background fabric.
• Brick and subway-tile layouts: 2½" × 4½" bricks from every strip.
• Bargello-style designs: strip sets cut into varying widths create flowing waves of color.

Tips for Working With Jelly Rolls

1. Unroll gently and shake off lint. Pinked edges shed a little. A quick shake saves your machine's bobbin area.
2. Measure from the tips of pinked edges and sew a consistent ¼" (or scant ¼") seam.
3. Press carefully, don't iron. Long strips distort easily. See Pressing Seams Open vs to the Side and our wool pressing mats.
4. Don't machine-prewash precut strips. They fray and tangle. If you must prewash, see Should You Prewash Quilting Fabric?
5. Batik strips have a tight weave and crisp hand. Use a fresh needle and blade. See Sewing With Batiks.

Frequently Asked Questions

How many strips are in a jelly roll?

Typically 40 strips, each 2½" wide by the width of the fabric. Some brands and mini rolls differ, so check the listing.

How much fabric is in a jelly roll?

40 strips × 2½" = 100" of width-of-fabric strips, about 2¾ yards.

What size quilt does one jelly roll make?

A jelly roll race quilt is about 50" × 64". Patterns that add background fabric can stretch one roll to a twin or larger.

How many jelly rolls for a queen quilt?

About three for an all-strip design at roughly 90" × 100". Patterns with background fabric often need one or two.

What is the difference between a jelly roll and a strip pack?

Nothing functional. “Jelly Roll” is Moda's name. Other brands call the same 2½" strips a strip pack, strip roll or Rolie Polie.

Keep Reading

• How Many 10" Squares Do I Need? Layer Cake Chart
• What Is Island Batik? Batik Precuts Guide
• Precut Fabric Explained
• Quilt Batting by the Roll