Child standing in a bright playroom, wearing a gray outfit with a white crochet unicorn tail belt and a long pastel yarn tail attached at the back.

Crochet Unicorn Tail Pattern Free + Video Tutorial for Beginners

I’m super excited to share my Crochet Unicorn Tail Pattern with you. This pattern is perfect for adding a touch of magic to your Halloween outfit! It’s designed for nine waist sizes, from a child’s small to a large adult, and includes instructions on how to adjust it for any waist size.

You’ll get to make a comfy waistband and choose from two different tail options. Plus, there’s a video tutorial to help you along the way. Let’s get started and make some enchanting unicorn tails together! The free crochet pattern is below.

Crochet Unicorn Tail Pattern Details

Here’s a quick overview of the materials, sizing, gauge, and pattern notes before you begin.

Skill Level

Beginner

Materials Needed

  • Crochet Hook Sizes:
    K-10.5 6.5 mm (waistband)
    I-9 5.5 mm (tail spirals)
  • Yarn:
    Super bulky yarn #6 in white
    Worsted weight yarn #4 in pastel colors
  • Yarn needle: Use this to weave in your ends.
  • Scissors: Use scissors to fasten off your yarn.
  • Stitch marker(s): Optional. Use these to help keep track of your stitches. 

Finished Sizes

SizeWaist Circumference
Child Small (3/4)Fits up to 21.5 inches
Child Medium (5/6)Fits up to 22.5 inches
Child Large (7/8)Fits up to 23.5 inches
Youth Small (10/12)Fits up to 25 inches
Youth Medium (14) & Woman SmallFits up to 26.5 inches
Youth Large (16)Fits up to 27.5 inches
Woman Medium & Man SmallFits up to 34 inches
Woman Large & Man MediumFits up to 34 inches
Man LargeFits up to 38 inches

How to Customize the Size

To customize the starting chain for your waist size, measure your waist in inches and multiply that number by 2.5. This will give you the length of your starting chain.

Example: For a waist size of 40 inches, make a starting chain of 100 (40 x 2.5 = 100).

Gauge

10 stitches = 4 inches and 4 rows = just under 2.5 inches

Crochet abbreviations

  • dc = double crochet
  • sc = single crochet
  • ch/chs = chain/chains
  • st/sts = stitch/stitches
  • sl st = slip stitch
  • rnd/rnds = round/rounds
  • rem = remaining

Pattern Notes

  • The chain at the beginning of each round does not count as your first stitch. 
  • Join each round with a slip stitch to the first stitch made in that round. 
  • You are crocheting in the round.
  • The pattern is written in US terms.

Crochet Unicorn Tail Pattern Instructions

Make the starting chain and join in the round.

SizeStarting Chain
Child Small (3/4)chain 54
Child Medium (5/6)chain 56
Child Large (7/8)chain 59
Youth Small (10/12)chain 63
Youth Medium (14) & Woman Smallchain 66
Youth Large (16)chain 69
Woman Medium & Man Smallchain 75
Woman Large & Man Mediumchain 85
Man Largechain 95

Rounds 1-4: Ch 2, dc in each st, join

Straight Unicorn Tail Instructions

Cut six 30-inch strands of each color yarn. Fold them in half and place a 6-inch scrap of white yarn over the fold. Pull the yarn ends through the fold and tighten to form a knot. Attach the tail to the back of the waistband. Trim the ends to make them even.

Lovable Loops free Crochet Halloween Costumes- Unicorn Tail Pattern + Video Tutorial

Spiral Unicorn Tail Instructions

Make a spiral in each pastel color

Ch 60, 2 dc in 3rd ch from the hook and in each rem ch, fasten off

Attach the spirals to the back of the waistband.

Lovable Loops free Crochet Halloween Costumes- Unicorn Tail Pattern + Video Tutorial

Finishing

Weave in the ends.

Video tutorial

YouTube video

Looking for More Free Crochet Patterns?

You may also like my unicorn hat, unicorn blanket, hooded unicorn cowl, and my hooded unicorn baby cardigan patterns.

Free crochet baby costume patterns

Looking for more cute costume ideas for babies? These free crochet baby costume patterns are perfect for Halloween, dress-up, themed photos, and sweet handmade memories. You’ll find fun and creative outfits that are great for babies and toddlers, whether you want something playful for a party or extra special for pictures.

Browse the gallery below to find adorable crochet baby costumes you can make for little ones. For even more handmade ideas, visit my full collection of free crochet baby patterns.

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

Unicorn tail crochet costume pattern with a crocheted waistband and pastel spiral tail option for kids and adults.