What You Need to Sew a Bucket Hat

A bucket hat is a straightforward, flat-bottomed crown with a short brim all the way around. You can make one with basic sewing skills and a machine or by hand. The construction is straightforward: you sew a rectangle into a tube, attach a circular bottom, then sew on a brim. Most bucket hats use two fabric pieces—an outer layer and a lining—which gives them structure and a finished look inside.

Start with two pieces of fabric: one for the outside and one for the lining. Cotton, linen, canvas, or quilting cotton all work well. You will also need thread that matches or complements your fabric, a sewing machine or needle, scissors, pins, a measuring tape, and paper for a pattern. If you want the hat to hold its shape, add interfacing—a stiff fabric you iron onto the brim.

Key Takeaways

  • A bucket hat has three main pieces: a crown (the tall part), a bottom circle, and a brim, all sewn together in order.
  • Measure your head circumference and divide by 3.14 to find the diameter of your crown circle, then add seam allowance before cutting.
  • Sew the crown into a tube first, then attach the circular bottom, then add the brim—this order keeps seams manageable and prevents puckering.
  • Sew the outer fabric and lining separately, then join them at the brim edge so no raw seams show on the inside of the hat.

Taking Measurements and Making a Pattern

Measure around your head where the hat will sit—usually about an inch above your eyebrows and around the back. Write this number down; this is your head circumference. Divide it by 3.14 to get the diameter of the crown circle. For example, if your head is 22 inches around, the diameter is about 7 inches.

On paper, draw a rectangle that is as wide as your head circumference and as tall as you want the crown to be. Most bucket hats have a crown 4 to 6 inches tall. Draw a circle with the diameter you calculated. Draw a second, larger circle for the brim—usually 1.5 to 2 inches wider all the way around than the crown circle. Add 0.5 inches to all edges for seam allowance, then cut out your pattern pieces.

You now have three pattern pieces: a rectangle (the crown), a small circle (the bottom), and a large circle (the brim). You will cut each one twice—once from outer fabric and once from lining fabric.

Cutting Fabric and Preparing Pieces

Lay your outer fabric flat and pin your pattern pieces to it. Cut out one rectangle for the crown, one small circle for the bottom, and one large circle for the brim. Repeat with your lining fabric. You should have six pieces total: two rectangles, two small circles, and two large circles.

If you are using interfacing on the brim, iron it onto the wrong side (the back) of one of your large circles now. This is the outer brim. The other large circle will be the lining brim and does not need interfacing.

Mark the seam allowance on all pieces with a pencil or fabric pen—a light line 0.5 inches from every edge. This helps you sew a straight, even seam. Pin pieces together before sewing so they do not shift.

Sewing the Crown Into a Tube

Take one rectangle (outer fabric) and fold it in half lengthwise, with the right sides facing each other. Pin the short ends together. Sew along the pinned edge using a straight stitch, staying on your seam allowance line. Backstitch at the start and end to lock the thread. You now have a tube. Press the seam open with an iron.

Repeat this step with the lining rectangle. You now have two tubes—one outer and one lining. Try the outer tube on your head. It should fit snugly but not tight. If it is too loose or too tight, you can adjust by moving your seam line slightly inward or outward and re-sewing.

Do not trim the tubes yet. Leave them as they are and move to the next step.

Attaching the Bottom Circle

Place your outer crown tube inside out (seam on the outside). Take one small circle (outer fabric) and pin it to the bottom opening of the tube, right sides facing each other. The circle should fit snugly; if it bunches, you may have cut the circle too large or the tube too small. Adjust your pattern and re-cut if needed.

Sew around the circle using a straight stitch, staying on your seam allowance line. Backstitch at the start and end. This seam is curved, so sew slowly and adjust the fabric as you go to keep the edge even. Trim any loose threads and press the seam open.

Turn the crown right-side out through the opening at the top. Repeat this step with the lining tube and the second small circle, but leave the lining inside out for now. You should have one finished outer crown and one inside-out lining crown.

Sewing the Brim and Joining Outer and Lining

Take your two large circles (the brim pieces). Place them right sides together and pin around the outer edge. Sew around the edge, leaving a 3-inch opening for turning. Backstitch at the start and end. Trim the seam and turn the brim right-side out through the opening. Press flat with an iron, then hand-stitch the opening closed using a ladder stitch or whip stitch.

Now you have the outer crown (right-side out), the lining crown (inside out), and the finished brim (right-side out). Slide the outer crown inside the lining crown so they are nested together, with the right sides facing each other. The bottom circles should line up. Pin the brim to the top opening of both crowns at the same time, with the brim sandwiched between the outer and lining fabrics.

Sew around the top opening, catching all three layers: the outer crown, the lining, and the brim. Use a straight stitch and stay on your seam allowance line. Backstitch at the start and end. Leave a 4-inch opening for turning.

Finishing the Hat

Turn the entire hat right-side out through the 4-inch opening. Gently push the lining down into the crown so it sits flat inside. Press the top edge with an iron to set the seam, then hand-stitch the opening closed using a ladder stitch. Make your stitches small and tight so they do not show.

Try the hat on and check the fit. The brim should sit evenly around your head, and the crown should not pull or bunch. If the brim is too stiff, you can soften it by hand-washing the hat and letting it air dry. If it is too floppy, add a second layer of interfacing.

Your bucket hat is now complete. You can add a decorative band around the crown, embroider your initials on the brim, or leave it plain. Hand-wash in cool water and lay flat to dry to keep the shape.

Frequently Asked Questions

Can I make a bucket hat without a sewing machine?

Yes. Hand-sewing takes longer but works just as well. Use a running stitch or backstitch for all seams, and make your stitches small and close together so they hold under tension. Reinforce seams by sewing over them twice. Hand-sewing the brim attachment takes the most time, but it is manageable in an afternoon.

What fabric weight works best for a bucket hat?

Medium-weight cotton, linen, or canvas holds its shape best. Lightweight fabrics like quilting cotton or chambray work but may need interfacing on the brim to stay stiff. Avoid stretchy fabrics like jersey or knit unless you are experienced, because they require special techniques to prevent wavy seams.

How do I make the brim wider or narrower?

Adjust the size of your large circle (the brim). A wider brim means a larger circle; a narrower brim means a smaller circle. Keep the inner edge of the brim the same size as your crown circle so it attaches properly. Test your pattern on scrap fabric first.

What if my seams pucker when I attach the bottom circle?

Puckering usually means you are sewing too fast or pulling the fabric. Slow down and let the machine feed the fabric. Pin more frequently around the curve so the circle stays centered. If it still puckers, try a slightly smaller circle or a larger crown tube.

Can I add a chin strap to my bucket hat?

Yes. After the hat is finished, sew a strip of fabric or cord to the inside of the brim on both sides, near where the brim meets the crown. Make the strap long enough to fit under your chin comfortably. Sew it securely with multiple passes of thread so it does not pull loose.