Knitting Tutorial: How to Knit the K1B Stitch (Knit 1 Below Stitch)

Learn how to knit the K1B stitch with this easy-to-follow tutorial! Check out even more tutorials on my Knitting Tutorial Page.


Knitting Tutorial: How to Knit the K1B Stitch (Knit 1 Below Stitch)

If you’ve ever come across a knitting pattern that calls for the K1B stitch and thought, “Wait… what’s that?”, don’t worry—you’re not alone! When I first encountered the term K1B, I paused too. But once I figured it out, I fell in love with the texture this little stitch adds. In this tutorial, I’m going to walk you through how to knit the K1B stitch (also called knit one below) in simple, clear steps.

You’ll learn how to knit the K1B stitch with written instructions, see where I like to use it in my own patterns, and find out why it’s such a great way to add subtle texture to your knits. I’ve got step-by-step photos (both right-handed and left-handed—those are coming soon), plus a full video tutorial for left-handed knitters if you’re a visual learner. Whether you’re a seasoned knitter or just branching out into new techniques, this is a stitch you’ll want in your toolbox!

What is the K1B Stitch?

Let’s break it down. The K1B stitch is short for knit one below, which means you’re going to knit into the stitch one row below the next stitch on your holding needle. You’ll create a slightly elongated loop and a gorgeous little bump that adds interest and texture to your fabric.

It’s often used in ribbing or textured patterns, and it’s a favorite of mine in my Granite collection of patterns (more on that later!). Once you understand how to knit the K1B stitch, you’ll see why it’s such a versatile technique.

Tools and Yarn I Used

For this tutorial, I used Berroco Ultra Alpaca (affiliate link)—it’s soft, warm, and gives just enough structure to really show off the K1B texture. I knit this sample using size 8 knitting needles from KnitPicks (affiliate link), which are perfect for this worsted weight yarn.

This combo creates a balanced fabric that isn’t too stiff and really lets the stitch definition shine.


How to Knit the K1B Stitch (Written Instructions)

Ready to get started? Here’s exactly how to knit the K1B stitch, step by step:

Look at the next stitch on your holding needle. Instead of knitting into the top of the loop like you normally would…

Insert your working needle into the center of the knit stitch right below that stitch.

Knit that lower stitch just like you normally would.

Let both loops (the one on the holding needle and the one below it) slide off the needle together.

That’s it! You’ve just worked a K1B stitch.

What It Looks Like

When you knit one below, you create a bump in the stitches between your k1b stitches that adds subtle texture and dimension. It’s not bulky or loud—it’s just the kind of detail that makes someone stop and say, “Wait… how did you do that?”

Tips for Knitting the K1B Stitch

  • It’s easier to knit the K1B stitch loosely. If you’re a tight knitter (like I tend to be!), take a deep breath and give yourself a little slack.
  • Don’t worry if it feels awkward the first few times. Like most new techniques, it becomes second nature with a little practice.
  • The K1B stitch works best on stockinette or ribbing. It gives stockinette a little more depth and gives ribbing a springy feel that holds shape beautifully.

K1B in Action: Patterns I Use It In

I’ve used the K1B stitch in several of my favorite designs—and for good reason! Here are just a few patterns where you’ll find it:

👉 Granite Sweater – Youth Size

👉 Granite Sweater – Baby Size

👉 Granite Socks

👉 Granite Hat

👉 Granite Dress

Each of these patterns uses the K1B stitch to create a signature texture that makes the designs look more complex than they actually are (don’t worry, your secret is safe with me). I’ll be linking them below once this post is live—stay tuned!

Left-Handed Knitters, I’ve Got You Too

If you’re a left-handed knitter like I am, sometimes tutorials can feel like deciphering a foreign language. That’s why I made a left-handed video tutorial on YouTube just for you! I show you exactly how to knit the K1B stitch using mirrored techniques that will feel totally natural. If you’re a visual learner or just want to double-check your work, this video is a great companion to the written steps.

How to Practice the K1B Stitch

Here’s a quick swatch pattern you can knit up to get the feel for how to knit the K1B stitch:

Cast on a multiple of 2 stitches (say 20)
Row 1 (Right Side): K1, K1B repeat to end
Row 2-4: work in stockinette stitch
Repeat rows 1–4 until your swatch is a few inches long

You’ll end up with a neat, textured fabric that’s perfect for scarves, cuffs, or even the body of a sweater. It’s a subtle detail that really elevates your project.

Why I Love the K1B Stitch

What I love most about the K1B stitch is how much dimension it adds without being flashy or overly complex. It creates an almost woven look when used across a larger surface. And because you’re knitting into a stitch that’s already been worked, there’s a built-in stretch and softness that just feels good in your hands.

Plus, there’s something so satisfying about seeing that little horizontal line appear and knowing you did that.

FAQs About the K1B Stitch

Q: What’s the difference between K1B and a regular knit stitch?
A: Regular knit stitches go into the loop on your needle. K1B stitches go into the stitch below that loop, adding extra texture and a slightly elongated look.

Q: Will it mess up my stitch count?
A: Nope! You’re replacing the regular knit stitch with a K1B stitch—it doesn’t increase or decrease your stitch count.

Q: Can I use K1B in the round?
A: Absolutely! Just follow the same instructions as you would flat—insert your working needle into the stitch below the next one on the holding needle and knit as usual.

Q: What yarns are best for showing off K1B?
A: I love using smooth, worsted weight yarns like Berroco Ultra Alpaca (affiliate link) that have good stitch definition. You’ll really see that beautiful line pop with the right yarn.

Try It In Your Next Project

Once you’ve practiced how to knit the K1B stitch, you’ll start seeing opportunities to use it everywhere—on sweater cuffs, hat brims, sock textures, and beyond. It’s such a fun way to add detail without complicating your pattern.

And if you’re knitting one of my Granite patterns, now you’ll be a K1B pro. I can’t wait to see what you make with it!


Let’s Chat!

Have you tried the K1B stitch before? Do you have any favorite ways to use it—or any projects where it gave you a little trouble? I’d love to hear your thoughts! Drop a comment below and let’s keep the conversation going.


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The post Knitting Tutorial: How to Knit the K1B Stitch (Knit 1 Below Stitch) appeared first on The Knit in the Womb Blog.



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