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How to sew a birthday crown (baby to adult)

Sew a fabric birthday crown with interchangeable felt number patches. Four sizes from baby to adult, fat quarter fabric, fusible fleece and elastic back.

6 min read. Updated November 9, 2026.

The birthday number crown this Sewzy pattern makes

Birthday Number Crown pattern

To sew a fabric birthday crown, cut a pointed crown shape from outer fabric and lining, fuse fleece to the outer for stiffness, sew them right sides together along the zigzag top, turn and press, add elastic at the back, then topstitch. Felt number patches attach with hook-and-loop dots so you can swap the number each year. The Birthday Number Crown in the Sewzy app comes in four sizes from Baby to Adult and is rated beginner.

TL;DR

  • Sizes: Baby (head 16 to 17 in, crown 3½ in tall), Toddler (18 to 19 in, 3¾ in), Kid (20 to 21 in, 4 in), Adult (22 to 23 in, 4¼ in).
  • Fabric: 1 fat quarter outer + 1 fat quarter lining, plus a scrap of fusible fleece and ¾ in elastic.
  • Time: about 1 hour. Beginner-friendly.
  • Key feature: hook-and-loop number patches. Sew them once, swap them every birthday.
  • Price: Premium, in the Sewzy app.

Sew the Birthday Number Crown from this guide, step by step, in the Sewzy app

Pick your size, print it from your phone, and follow every step with a sewing coach beside you.

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The birthday number crown this Sewzy pattern makes, view 2The birthday number crown this Sewzy pattern makes, view 3
The Birthday Number Crown from the Sewzy pattern. Photos are renders of the finished item, made from the pattern's shapes.

What makes this crown reusable?

Most fabric birthday crowns are stitched with a fixed number or no number at all. This one uses small loop dots sewn to the front of the crown and hook dots on the back of each felt number patch. Press the number on; it stays put for the party. Peel it off and press on the next number the following year. Sew the numbers you need and keep them in a small pouch; one crown then covers every birthday you cut a patch for.

What size should I cut?

SizeHead circumferenceCrown heightFabric
Baby16 to 17 in3½ in1 fat quarter outer + 1 inner
Toddler18 to 19 in3¾ in1 fat quarter outer + 1 inner
Kid20 to 21 in4 in1 fat quarter outer + 1 inner
Adult22 to 23 in4¼ in1 fat quarter outer + 1 inner

The elastic at the back stretches to fit heads within each range. If you are between sizes, pick the larger one.

What you need

  • Outer fabric: quilting cotton, linen-cotton, or canvas. A bold print or solid works well.
  • Lining fabric: a coordinating cotton.
  • Fusible fleece: cut on the dashed line of the crown piece, so it sits inside the seam allowance. This gives the crown body so it stands up on its own.
  • Elastic: ¾ in wide soft knit elastic. The pattern gives the cut length for each size.
  • Loop dots and hook dots: sew-on hook-and-loop circles: 1 in loop dots for the crown and ¾ in hook dots for the back of each number patch.
  • Felt scraps: for the number patches. Stiff wool-blend felt cuts clean edges.

How to sew the crown step by step

The pattern in the Sewzy app has the full piece shapes and seam allowances. Here is the overview of each stage.

  1. Cut the outer and lining pieces from the pattern. Cut the fusible fleece on the dashed line.
  2. Place the loop dots on the right side of the outer piece where the number will sit. Sew around each dot to secure it permanently.
  3. Fuse the fleece to the wrong side of the outer piece with an iron. Follow the fleece instructions for heat and time.
  4. Pin outer and lining right sides together. Sew along the pointed top edge.
  5. Trim and clip the seam allowance at each point. Clip into the valleys between the points, close to the stitching but not through it.
  6. Turn right side out and press. Use a point turner or chopstick to push each point out crisply.
  7. Fold the bottom edge in and tuck the elastic ends inside at the back opening.
  8. Topstitch all the way around the bottom edge, catching the elastic securely at each end. The topstitching closes the opening and finishes the crown.
  9. Cut the number patches from felt using the templates. Stick or sew a hook dot on the back of each patch.
  10. Press the number onto the crown. It sticks to the loop dots and is ready for the party.

Tips for clean crown points

  • Take two or three stitches across each point instead of stitching into a sharp corner. This gives the point room to turn.
  • Trim the seam allowance at the point to about ⅛ in. Less bulk means a sharper point when you turn it.
  • Clip the valleys between points almost to the stitching. Without clips, the fabric pulls and the points will not stand up straight.
  • Press from the lining side so you do not scorch the outer fabric.

Common mistakes

  • Skipping the fusible fleece. Without it, the crown flops over. The fleece is what makes it stand up.
  • Elastic too tight. Try the elastic around the head before sewing it in. It should be snug but comfortable, not squeezing.
  • Hot-gluing the loop dots. Hot glue melts and peels off after a few washes. Sew the dots down for a crown that lasts.

More birthday and dress-up projects

If you want a plain zigzag-edge crown without number patches, the Fabric Crown pattern has Baby, Toddler and Child sizes. For a full costume, try the superhero cape or the Animal Ears Headband (cat, bear and bunny ears in Child, Adult and Adult Large sizes). More ideas for handmade gifts at gifts to sew for kids.

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FAQ

What size birthday crown do I need?

Measure around the head where the crown will sit. Baby fits 16 to 17 in, Toddler fits 18 to 19 in, Kid fits 20 to 21 in, and Adult fits 22 to 23 in. The elastic back stretches to fit within each range.

How much fabric does a birthday crown need?

One fat quarter of outer fabric and one fat quarter of lining for any of the four sizes. You also need a scrap of fusible fleece for stiffness and a short length of elastic.

Can I change the number each year?

Yes. The Sewzy Birthday Number Crown pattern uses loop dots on the crown and hook dots on the felt number patches. Peel off one number and press on the next, so one crown can last for many birthdays.

Is the birthday crown pattern free?

No. The Birthday Number Crown is a Premium pattern in the Sewzy app. It includes all four sizes and the number patch templates.

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