Ever followed a pattern perfectly… only for your project to turn out completely wrong?

You used the same yarn.
You counted every stitch.
You followed the instructions exactly.

So why does your work look nothing like the photo?

Here’s the secret many beginners don’t realise straight away:

Your hook size changes EVERYTHING.

Think of your crochet hook like the nozzle on a garden hose. The water is the same, but changing the nozzle changes the pressure, flow, and shape of the spray. Crochet works the same way — even when using the exact same yarn and stitch count, different hook sizes create completely different results.

Today, we’re going to explore why hook size matters, what changes when you size up or down, and why there’s no single “correct” hook to use.

The Experiment: Same Yarn, Same Stitches, Different Hooks

For this demonstration, I used:

• the same yarn - 10 ply 100% Acrylic Yarn,
• the same stitch - DC (Double Crochet, US terminology),
• the same number of rows - 5,
• and the same stitch count - 10.

The ONLY thing that changed was the hook size.

The yarn label recommended using a 5mm hook, so i chose to use that as my "middle ground" comparison point.

From there, I intentionally tested hooks both smaller and larger than the recommended size:

• 3.5mm
• 4mm
• 5mm
• 6mm
• 6.5mm

This allowed me to demonstrate how even a difference of just 1mm-1.5mm can dramatically change the final look, feel, size and drape of your crochet - despite using exactly the same yarn and stitch pattern.

Below, you'll see each swatch photographed individually with a measuring tape for scale so you can compare how the hook size affected the finished result.

3.5mm Hook

4mm Hook

5mm Hook

6mm Hook

6.5mm Hook

You’ll probably notice:

• some swatches look tighter,
• some appear softer and more flexible,
• some are noticeably smaller,
• and some have larger gaps between stitches.

This is completely normal.

And honestly? This is where crochet starts becoming more personal than perfect.

The recommended hook size on a yarn label is a helpful starting point — not a strict rule. Different hook sizes create different fabrics, textures, and levels of drape depending on the look and feel you want for your project.

That’s why two crocheters can use the same yarn and pattern, yet still end up with very different results.

And neither person is doing it “wrong.”

Smaller Hooks = Tighter Fabric

Ever made something that felt stiff or hard to work into? A smaller hook could be the reason.

Using a smaller crochet hook:

• creates tighter stitches,
• reduces gaps,
• makes projects firmer,
• and usually creates a smaller finished size.

This can be useful for:

• amigurumi,
• baskets,
• structured bags,
• or projects where stuffing shouldn’t show through.

But there’s a catch.

If the hook is too small for your comfort, crochet can quickly become frustrating:

• sore hands,
• difficulty inserting the hook,
• tight tension,
• and accidental splitting of yarn.

A lot of beginners think:

“I just need to crochet tighter so it looks neat.”

Actually, neat crochet usually comes from consistent tension — not painfully tight stitches.

Practical Tip

If your hands hurt or your stitches are difficult to work into, try sizing your hook up by just 0.5mm and see how it feels.

Larger Hooks = Softer, Looser Fabric

Now let’s go to the opposite extreme.

Larger hooks create:

• bigger stitches,
• more flexibility,
• extra drape,
• and often a faster crochet experience.

This works beautifully for:

• blankets,
• scarves,
• garments,
• and relaxed textured projects.

But if you go too large, your stitches can become:

• uneven,
• holey,
• floppy,
• or stretched out.

And this is where many beginners panic.

They assume:

“I’m doing it wrong.”

Usually, you’re not doing it wrong at all — your hook size simply isn’t matching the look you want.

Practical Tip

If your project feels stiff and dense when you wanted softness, try going up one hook size before changing yarn or restarting everything.

Why Patterns Recommend Specific Hook Sizes

Here’s something that surprises a lot of new crocheters:

The hook listed on a pattern is only a suggestion.

Pattern designers use the hook size they needed to achieve a certain result.

But everybody crochets differently.

Some people naturally crochet:

• tightly,
• loosely,
• faster,
• or with different hand tension.

That means two people using:

• the same hook,
• the same yarn,
• and the same pattern…

…can still end up with different sizes.

This is why gauge exists — not to annoy you, but to help you match the intended outcome.

Practical Tip

If your project is turning out too small, try increasing your hook size before assuming the pattern is incorrect.

There Is No “Correct” Way To Crochet

This might be the most important thing beginners need to hear.

A lot of crochet tutorials unintentionally make it seem like there’s one perfect way to:

• hold yarn,
• position your hook,
• maintain tension,
• or create stitches.

But crochet is incredibly personal.

Some people wrap yarn around their finger.
Some don’t.
Some hold their hook like a knife.
Others use a pencil grip.

And all of them can create beautiful crochet.

The same applies to hook size.

Sometimes you’ll intentionally size down for structure.
Sometimes you’ll size up for softness.

Neither is wrong.

Practical Tip

Instead of asking: “What’s the correct hook size?”

Try asking: “What kind of fabric do I want this project to create?”

That question changes everything.

The Best Way To Find Your Ideal Hook Size

Honestly? Experimentation.

That’s it.

The more little swatches you make, the more you’ll begin noticing:

• what feels comfortable,
• what looks best,
• and what creates the result you enjoy most.

And that’s the real goal.

Not perfection.
Not matching somebody else exactly.
Not forcing yourself into one “right” technique.

Just finding what works for you.

Final Thoughts

Hook size seems like a tiny detail, but it can completely transform your crochet.

The same yarn can become:

• dense,
• airy,
• structured,
• floppy,
• stiff,
• or beautifully soft…

…all depending on the hook in your hand.

So if your crochet doesn’t look the way you expected yet, don’t assume you’ve failed.

You may simply need a different hook size — and a little patience while you discover your own crochet style.

Because crochet isn’t about doing it perfectly.

It’s about learning what works best for you.