Learn how to half double crochet with step-by-step instructions, common mistakes to avoid, and easy beginner projects to try.

How to Half Double Crochet

If you’ve mastered the chain stitch and single crochet but want a stitch that works up faster while still keeping some texture, the half double crochet (HDC) is exactly what you need. It sits right between single crochet and double crochet in height, making it one of the most versatile stitches in your toolkit — and once you get the rhythm down, you’ll be reaching for it in blankets, scarves, and hats for years to come.

How to Half Double Crochet: What Is an HDC Stitch?

The half double crochet is a taller cousin of the single crochet stitch. Where a single crochet involves one “yarn over, pull through,” the HDC adds an extra yarn over at the start and pulls through all three loops at once instead of two. That one small change gives you a fabric that’s a bit looser and drapier than single crochet, but denser and warmer than double crochet — perfect for projects that need to work up quickly without looking too open or lacy.

How to Half Double Crochet: Supplies You Need

A skein of worsted weight (medium, #4) yarn — ideal for practicing HDC
A crochet hook sized for your yarn (usually H/8 – 5.0mm for worsted weight; check your yarn label)
Scissors
A yarn needle for weaving in ends
Stitch markers (optional, but helpful while you’re learning to count rows)

How to Half Double Crochet: Step-by-Step Instructions

Step 1: Slip Knot and Chain
Attach your yarn to your hook with a slip knot, then chain 20. This gives you the foundation row you’ll practice half double crochet on.

Step 2: Make Your First Half Double Crochet Stitch
Hold your chain steady with your non-dominant hand. Yarn over, then insert your hook into the third chain from your hook. Yarn over again and pull up a loop , you’ll have three loops on your hook. Yarn over one more time and pull through all three loops at once. That’s one complete half double crochet stitch (hdc).

Step 3: Half Double Crochet in the Remaining Chains
Repeat the same half double crochet steps into each chain across the row. Once you reach the end, you should have 18 hdc stitches.

Step 4: Make the Next Row
To start your next row, work a turning chain — for half double crochet, that’s always a chain of 2. Some patterns count this turning chain as a stitch and some don’t, so check your pattern’s notes. For this swatch, we won’t count it: chain 2, then hdc into each stitch from the row before, keeping 18 stitches per row.

Step 5: Keep Practicing Your Half Double Crochet
Continue working rows the same way — chain 2 to turn, then hdc across. Repetition is what smooths out your tension and stitch height as you build up your half double crochet skills. When you’re ready to finish, pull your last loop through completely, cut your yarn a few inches away, and weave the tail through nearby stitch posts with a yarn needle to secure it.

How to Half Double Crochet: Turning and Starting the Next Row

As you saw in Step 4 above, every new row of half double crochet starts with a turning chain of 2. This brings your hook up to the right height to keep your stitches even. Once you’ve chained 2, turn your work and start your first stitch in the very next stitch after the turning chain — not into the turning chain itself, unless a specific pattern tells you otherwise. Patterns vary on whether that turning chain counts as a stitch, so it’s worth double-checking the notes any time you’re working from someone else’s instructions.

How to Half Double Crochet: How to Count Your Stitches

HDC stitches can be trickier to count than single crochet because the stitch has more “layers.” Look for the two horizontal bars that sit across the front of each stitch — each pair of bars represents one HDC. Count along the top of your row, and don’t forget to factor in your turning chain if your pattern counts it as a stitch. Using a stitch marker on your first and last stitch of a row makes it much easier to keep track while you’re still building muscle memory.

How to Half Double Crochet: Common Beginner Mistakes

Forgetting the first yarn over before inserting the hook — this accidentally turns your HDC into a single crochet.
Losing track of the turning chain — either skipping it entirely or accidentally working an extra stitch into it.
Uneven tension, especially on the “pull through all 3 loops” step, which can make some stitches noticeably tighter or looser than others.
Miscounting stitches at the end of a row, which causes your project to gradually widen or narrow without you noticing.

How to Half Double Crochet: Tips for Better Results

Practice on a swatch before starting a full project — HDC has its own rhythm, and a few rows of practice go a long way.
Keep your tension relaxed; gripping the hook too tightly is the number one cause of uneven HDC fabric.
Count your stitches at the end of every row while you’re learning, not just every few rows.
Use a contrasting stitch marker in your first stitch of each row to avoid accidentally working into (or skipping) your turning chain.
If your rows look slanted, check that you’re inserting your hook into the correct stitch — it’s easy to accidentally work into the wrong loop.

How to Half Double Crochet: Easy Projects to Try

A simple HDC dishcloth — a small, low-commitment way to practice the stitch.
A textured scarf — HDC’s slight loft makes for a warm, drapey scarf without a lot of technique required.
A basic beanie — worked in the round, HDC gives you a nice balance of speed and structure.
A cowl — a great next step once you’re comfortable working HDC in continuous rounds.

Video Tutorial

For a visual walkthrough of this stitch, check out this HDC tutorial video.

How to Half Double Crochet ?