Featured image showing turquoise half double crochet beanies in multiple sizes beside bold “Half Double Crochet Beanie Pattern” text with colorful pastel accents.

Half double crochet beanie pattern

This half double crochet beanie pattern makes a classic everyday hat for babies, kids, and adults. Keep it simple in one color, add stripes, or finish it with a pom pom for a little extra personality. With seven sizes from preemie through adult, it’s an easy-to-customize cold-weather hat you can make again and again.

Quick answer

This beginner half double crochet beanie pattern is worked top down in joined rounds using worsted weight (#4) yarn and an I-9 (5.5 mm) crochet hook. Half double crochet increases shape the crown, and a final round of single crochet finishes the edge. The pattern includes seven sizes from preemie through adult.

Half double crochet beanie pattern details

Skill level

Beginner. This pattern uses a magic circle, half double crochet stitches, simple increases, joined rounds, and a finishing round of single crochet.

Materials needed

  • I-9 (5.5 mm) crochet hook, or size needed to meet gauge
  • Worsted weight yarn #4
  • Yarn needle
  • Scissors
  • Tape measure
  • Pom pom maker, optional

Best yarn for a half double crochet beanie

Choose a soft worsted weight acrylic or wool-blend yarn with enough stretch for a comfortable fit. For baby sizes, use a soft, washable yarn suitable for sensitive skin.

Size chart

Use the wearer’s actual head circumference whenever possible. “Fits head circumference” refers to the wearer’s measurement, while hat height is the finished measurement.

SizeFits head circumferenceHat height
Preemie12–13 inches (30.5–33 cm)4 inches (10 cm)
0–3 months13–14 inches (33–35.5 cm)5.5 inches (14 cm)
3–6 months14–15 inches (35.5–38 cm)6 inches (15 cm)
6–12 months16–17 inches (40.5–43 cm)6.25 inches (16 cm)
Toddler18–19 inches (45.5–48 cm)6.75 inches (17 cm)
Child19–20 inches (48–51 cm)7.5 inches (19 cm)
Adult20–23 inches (51–58.5 cm)8.25 inches (21 cm)

If the wearer falls between sizes, choose the size based on how snug you want the hat to fit. Crochet hats typically have some negative ease so they stay comfortably in place.

See my crochet hat sizing guide for full details and size charts.

Graphic showing a stack of turquoise half double crochet beanies in multiple sizes beside bold “Half Double Crochet Beanie Pattern” text and colorful heart accents.

Gauge

16 hdc stitches and 12 hdc rounds = 4 inches (10 cm)

My guide to crochet gauge explains how to measure your swatch and adjust your hook size.

Crochet abbreviations

Pattern notes

  • Begin with a magic circle.
  • The ch 2 at the beginning of the half double crochet rounds and the ch 1 at the beginning of the final single crochet round do not count as stitches.
  • Join each round with a slip stitch to the first stitch.
  • Add or remove half double crochet rounds from the body section before the final single crochet round to adjust the finished length.
  • Repeat instructions between the asterisks as indicated.
  • The pattern is written using US crochet terms.

New to written instructions? Read my guide explaining how to read a crochet pattern.

Pinterest graphic showing turquoise half double crochet beanies in multiple sizes with text highlighting an easy construction, everyday fit, and baby through adult sizes.

Half double crochet beanie video tutorial

Prefer to learn by watching? This step-by-step half double crochet beanie video tutorial shows how to work the hat from the top down, including the magic circle, crown increases, joined rounds, and finishing steps.

Prefer YouTube? Watch the half double crochet beanie tutorial on YouTube.

Half double crochet beanie pattern instructions

Preemie size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, hdc in each st around. Join. (44 sts)
Rounds 6–12: Ch 2, hdc in each st around. Join. (44 sts)
Round 13: Ch 1, sc in each st around. Join. (44 sts)

0–3 month size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, *2 hdc in next st, hdc in next 10 sts; repeat around. Join. (48 sts)
Round 6: Ch 2, hdc in each st around. Join. (48 sts)
Rounds 7–16: Ch 2, hdc in each st around. Join. (48 sts)
Round 17: Ch 1, sc in each st around. Join. (48 sts)

3–6 month size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, *2 hdc in next st, hdc in next 10 sts; repeat around. Join. (48 sts)
Round 6: Ch 2, *2 hdc in next st, hdc in next 11 sts; repeat around. Join. (52 sts)
Round 7: Ch 2, hdc in each st around. Join. (52 sts)
Rounds 8–17: Ch 2, hdc in each st around. Join. (52 sts)
Round 18: Ch 1, sc in each st around. Join. (52 sts)

6–12 month size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, *2 hdc in next st, hdc in next 10 sts; repeat around. Join. (48 sts)
Round 6: Ch 2, *2 hdc in next st, hdc in next 11 sts; repeat around. Join. (52 sts)
Round 7: Ch 2, *2 hdc in next st, hdc in next 12 sts; repeat around. Join. (56 sts)
Round 8: Ch 2, hdc in each st around. Join. (56 sts)
Rounds 9–18: Ch 2, hdc in each st around. Join. (56 sts)
Round 19: Ch 1, sc in each st around. Join. (56 sts)

Toddler size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, *2 hdc in next st, hdc in next 10 sts; repeat around. Join. (48 sts)
Round 6: Ch 2, *2 hdc in next st, hdc in next 11 sts; repeat around. Join. (52 sts)
Round 7: Ch 2, *2 hdc in next st, hdc in next 12 sts; repeat around. Join. (56 sts)
Round 8: Ch 2, *2 hdc in next st, hdc in next 13 sts; repeat around. Join. (60 sts)
Round 9: Ch 2, hdc in each st around. Join. (60 sts)
Rounds 10–20: Ch 2, hdc in each st around. Join. (60 sts)
Round 21: Ch 1, sc in each st around. Join. (60 sts)

Child size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, *2 hdc in next st, hdc in next 10 sts; repeat around. Join. (48 sts)
Round 6: Ch 2, *2 hdc in next st, hdc in next 11 sts; repeat around. Join. (52 sts)
Round 7: Ch 2, *2 hdc in next st, hdc in next 12 sts; repeat around. Join. (56 sts)
Round 8: Ch 2, *2 hdc in next st, hdc in next 13 sts; repeat around. Join. (60 sts)
Round 9: Ch 2, *2 hdc in next st, hdc in next 14 sts; repeat around. Join. (64 sts)
Round 10: Ch 2, hdc in each st around. Join. (64 sts)
Rounds 11–22: Ch 2, hdc in each st around. Join. (64 sts)
Round 23: Ch 1, sc in each st around. Join. (64 sts)

Adult size

Round 1: Make a magic circle. Ch 2, work 11 hdc into the ring. Join with a sl st. (11 sts)
Round 2: Ch 2, 2 hdc in each st around. Join. (22 sts)
Round 3: Ch 2, *2 hdc in next st, hdc in next st; repeat from * around. Join. (33 sts)
Round 4: Ch 2, *2 hdc in next st, hdc in next 2 sts; repeat around. Join. (44 sts)
Round 5: Ch 2, *2 hdc in next st, hdc in next 10 sts; repeat around. Join. (48 sts)
Round 6: Ch 2, *2 hdc in next st, hdc in next 11 sts; repeat around. Join. (52 sts)
Round 7: Ch 2, *2 hdc in next st, hdc in next 12 sts; repeat around. Join. (56 sts)
Round 8: Ch 2, *2 hdc in next st, hdc in next 13 sts; repeat around. Join. (60 sts)
Round 9: Ch 2, *2 hdc in next st, hdc in next 14 sts; repeat around. Join. (64 sts)
Round 10: Ch 2, *2 hdc in next st, hdc in next 15 sts; repeat around. Join. (68 sts)
Round 11: Ch 2, hdc in each st around. Join. (68 sts)
Rounds 12–24: Ch 2, hdc in each st around. Join. (68 sts)
Round 25: Ch 1, sc in each st around. Join. (68 sts)

Adding a pom pom (optional)

Add an optional yarn pom pom to give your half double crochet beanie a fun finishing touch.

  1. Wrap yarn around your pom pom maker.
  2. Cut the yarn along the outer groove.
  3. Tie the center securely with a strong length of yarn.
  4. Remove the pom pom and fluff the strands.
  5. Trim it into an even shape.
  6. Sew the pom pom securely to the top of the beanie.

Finishing your beanie

Check the finished height and fit. If you’re happy with the fit, fasten off and weave in all loose yarn ends.

If you added a pom pom, tug gently to confirm it is attached securely.

Stack of turquoise half double crochet beanies in multiple sizes, from small baby hats to a larger adult beanie, on a white background.

More free crochet hat patterns

Looking for another easy beanie? You may also like my lightweight crochet beanie, ribbed crochet hat, basic crochet beanie pattern, or crochet beanie with ribbed brim. You can also browse my full collection of free crochet hat patterns for baby, child, and adult sizes.

Let’s connect!

I’d love to see what you’re making! Share your finished project and follow along for more free crochet patterns and tutorials.

📌 Don’t forget to pin this pattern for later!
Happy crocheting! 🧶
— Melissa

Pinterest graphic featuring turquoise half double crochet beanies in multiple sizes with bold “Half Double Crochet Beanie Pattern” text and baby, toddler, child, and adult size callouts.