KFB Knitting – How To Make An Increase


KFB Knitting – This means knitting into the front and back of a stitch to make an increase.

This video and step-by-step photograph knitting tutorial will help you learn how to knit the Knit Front and Back Increase (KFB).

This technique adds a stitch to your knitting to help shape it for things like hats, socks, or scarves.

It is a great way to increase the garter stitch because it is almost invisible in the pattern.


KFB – Knit Front Back

Increasing and decreasing stitches can be a little difficult for beginners but once you know how it really is quite easy to KFB (knit front back).

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This stitch is used in many patterns from sweaters to shawls.

In sweaters, this is normally used to increase stitches for sleeves.

I used this KFB increase in a shawl pattern I created that has a chevron design. 

If you want to see an example of how this stitch is used, take a look at my Sea Glass Shawl Pattern.

free shawl knitting pattern

What you need to get started

To get started practicing, pick up your needles and yarn.

In the tutorial, I will use size 9mm (US 13) needles and super bulky yarn – Lion Brand Wool-Ease Thick and Quick.

You can use any kind of yarn to practice, but choosing larger needles and super bulky yarn will make it easier for you.

Choosing a yarn where you can see the stitches will help you to see what is happening with your stitches.

Super bulky yarn and needles

KFB Knitting – How To Make An Increase

You can see a step-by-step photo tutorial below and a video tutorial.

You can view the video tutorial on my YouTube channel here.

For this sample below I cast on 12 stitches using 9mm/US 13 needles and super bulky yarn.

You can however cast on any number of stitches while you practice this technique.

How To KFB

  1. Step 1 – Insert your needle into the first stitch

    Insert your needle into the first knit stitch, as you would normally knit a stitch.
    Insert into the stitch with your right needle, wrap the yarn around the needle and place the needle to the front as if you are going to slide that stitch off.knitting into the front of a stitch

  2. Step 2 – Knitting into the second stitch

    You will now go to knit that stitch and twist your needle round to push it into the back of the stitch on the left-hand needle.
    knitting into the front and back of a stitch

  3. Step 3 – Push The Needle Into The Back Of The Stitch

    You are first knitting into the front of the stitch, in the same way, you would normally go in to knit a stitch, then twisting and knitting into the back loop of the same stitch.knitting into the back of the stitch

  4. Step 4 – Finishing the increased stitch

    You will now have two stitches on the right-hand needle.
    To complete the stitch, you will move that original stitch off the left needle.
    You have just increased and created an extra stitch.two stitches are now on the needles

  5. Step 5 – Following your pattern

    Carry on knitting your pattern and working the KFB abbreviation wherever the pattern states.continue knitting your row

KFB Knitting Tips

Take a look at my tops tips for working this increase below;

  • Be careful how tightly you pull the yarn when you work.
  • You don’t want to pull so tight that it makes it difficult to get your needle in there to make the increase.
  • Follow the instructions in your pattern, to make sure you are making the increases in the right places.
  • Practice with a swatch before you take on a pattern that uses these stitches.
  • Watch my video tutorial to see how this KFB stitch can be worked easily before you start.

If you are interested in learning more about the knitting basics, please visit this post – Knitting Lessons

How to knit into the front and back of a stitch

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  1. The. Pattern indicates the squares re to be knitted separately. Does this mean each square is to be bin off and then sewn together? Thanks for your help.

    1. Hello Thelma,
      If your pattern doesn’t say if the squares should be continued in some way – then I would think that they should be cast off and joined later.
      In the making up section of your pattern, it may give further instruction on how to do this…
      I hope that helps!