This tutorial explains an increase method that involves working multiple stitches in a single stitch, creating a double increase. A kfbf, or knit front, back, front all in the same stitch is a central double increase, working 3 stitches in one stitch, increasing 2 stitches. Let’s see how it works.
Looking for a kfb single increase? You can find our kfb – knit front and back tutorial here.
This tutorial includes:
- What IS a kfbf increase anyways?
- kfbf all in the same stitch video
- How to work a kfbf all in the same stitch
- How does this increase look in an increase line?
- More increases
What IS a kfbf increase anyways?

A kfbf is a central double increase – this means you are increasing 2 stitches. To increase 2 stitches from just 1 stitch, you work multiple stitches without taking the stitch off the left hand needle. You knit the stitch (without taking it off the left hand needle), then knit the same stitch through the back loop (without taking it off the left hand needle), and finally knit it once more, this time taking the stitch off the left needle. You’ll have used 1 stitch to create 3 stitches, for a gain of 2 stitches.
kfbf all in the same stitch video
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How to work a kfbf all in the same stitch
- Knit the first stitch on the left needle without taking it off the left needle.
- Knit the same stitch through the back loop, without taking it off the left needle.
- Knit that same stitch, the first one on the left needle, finally taking the stitch off the left needle.




How does this increase look in an increase line?
As the increases start to stack up you can see how the increase line looks. You can see that the stitch worked through the back has the look of a purl stitch.
For this swatch I’ve worked a kfbf all in the same stitch every right side row.

More increases
There are LOTS of increase types in knitting, you can find all of our increase tutorials here. For more information on increase lines check out our increase lines post here.
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