Knit two together is a single decrease that combines two stitches into one

Knit two together (abbreviated K2tog) is the most common way to reduce the stitch count on your needle. You insert your working needle through two stitches at once instead of one, then knit them as if they were a single stitch. The result is one stitch on your right needle where two existed on your left, and the working yarn pulls the right stitch over the left one, creating a visible slant to the right.

This decrease appears in nearly every knitting pattern — in shaping garment edges, creating decorative decreases, and working lace patterns. Once you understand the hand position and the needle movement, the motion becomes automatic.

Key Takeaways

  • Knit two together means inserting your needle through two stitches at once and knitting them as one stitch, reducing your stitch count by one.
  • The decrease slants to the right because the right stitch passes over the left one as you pull the yarn through.
  • Your working yarn stays in the same position as a regular knit stitch — you do not move it before or after the decrease.
  • Practicing the motion slowly on a practice swatch helps you develop consistent tension and speed before using it in a pattern.

The hand position and needle movement

Hold your needles in your working position — left needle in your left hand, right needle in your right hand. Locate the first two stitches on your left needle that you want to decrease. These will be the two stitches closest to the tip of your left needle.

Insert the tip of your right needle through both stitches from left to right, the same direction you would for a regular knit stitch. Your needle now passes through two loops instead of one. Wrap your working yarn around the right needle tip exactly as you would for a regular knit stitch — bring the yarn to the back, wrap it around the needle, and pull it through both loops.

Slide both stitches off the left needle. You now have one new stitch on your right needle. The motion is identical to a regular knit stitch except for the number of loops your needle passes through.

Why the decrease slants right

When you knit two stitches together, the stitch that was on the right side of your left needle passes over the stitch that was on the left side. This creates a visible slant in the fabric that leans toward the right side of your work. The stitch closest to the needle tip (the right stitch) ends up on top.

This matters when you are shaping a garment or working a pattern that calls for decreases to slant in a specific direction. A right-leaning decrease (K2tog) is often paired with a left-leaning decrease (SSK or slip, slip, knit) to create balanced shaping on opposite edges of a piece.

Common mistakes and how to avoid them

The most frequent error is moving your working yarn before the decrease. Your yarn position should not change — it stays in back for a knit stitch, whether you are knitting one stitch or two. If you move the yarn forward, you will accidentally create a yarn over, which adds a stitch instead of removing one.

Tension problems often appear when you first learn K2tog. Pulling too hard on the yarn after the decrease can make the new stitch tight and distort the stitches around it. Pull the yarn with the same tension you use for regular knit stitches. The decrease itself does not require extra force.

Another common issue is inserting your needle through only one stitch by accident. This happens when you work too quickly or when the stitches are very close together on the needle. Slow down and confirm that your needle passes through both loops before you wrap the yarn.

Practicing on a swatch before using it in a pattern

Cast on 20 stitches using a yarn and needle size you are comfortable with. Knit 4 rows in stockinette stitch (knit on the right side, purl on the wrong side). On row 5, knit 5 stitches, then K2tog, then knit the remaining stitches to the end of the row. Purl the next row. Repeat this pattern — knit 5, K2tog, knit to end — every other row for 6 to 8 rows.

Watch how the decreases create a visible column of right-leaning stitches down the center of your swatch. Notice how the tension of your decreases compares to your regular knit stitches. If the decreases are noticeably tighter or looser, adjust your yarn tension on those stitches until they match the rest of your work.

Once the decreases feel natural and your tension is even, you are ready to use K2tog in an actual pattern. The repetition builds muscle memory so the motion becomes automatic when you are following a pattern and counting stitches.

When K2tog appears in patterns

Patterns use K2tog to shape sleeves, necklines, and armholes. The pattern will tell you exactly where to place the decrease — usually "K2tog at the beginning of the row" or "K2tog at the end of the row" or "K2tog every 4 rows 6 times." Follow the placement exactly, because the position of the decrease affects how the garment fits and looks.

In lace patterns, K2tog pairs with yarn overs to create holes and texture. The yarn over adds a stitch, and the K2tog removes one, keeping your stitch count constant while creating the lace design. In these patterns, the placement of the decrease relative to the yarn over is critical to the pattern's appearance.

The difference between K2tog and other decreases

K2tog is a right-leaning decrease. Slip, slip, knit (SSK) is a left-leaning decrease — you slip two stitches knitwise one at a time, then insert your left needle through both slipped stitches and knit them together. SSK is often used on the opposite edge of a garment from K2tog to create balanced shaping.

Purl two together (P2tog) works the same way as K2tog but on a purl row — you insert your needle through two stitches and purl them as one. Knit three together (K3tog) removes two stitches at once by knitting three stitches together, creating a more dramatic decrease. Most patterns specify which decrease to use, so check your pattern instructions before you work.

Frequently Asked Questions

Do I move my yarn before knit two together?

No. Your working yarn stays in the same position as a regular knit stitch — in back of your work. If you move the yarn to the front before the decrease, you will create a yarn over, which adds a stitch instead of removing one. Keep your yarn position consistent.

Why does my knit two together look loose compared to my other stitches?

You are likely pulling the yarn too hard after the decrease. Use the same yarn tension for K2tog as you do for regular knit stitches. If the stitch is still loose, try tightening the yarn slightly on the stitch after the decrease to even out the tension across the row.

Can I knit two together on a purl row?

Yes, but it is called purl two together (P2tog). Insert your needle through two stitches and purl them as one, using the same motion as a regular purl stitch. The decrease still slants right when viewed from the knit side of the fabric.

What is the difference between K2tog and SSK?

K2tog slants to the right, and SSK slants to the left. Patterns often pair them on opposite edges of a garment to create balanced shaping. K2tog is faster because it is one motion, while SSK requires slipping two stitches first, but both remove one stitch.

How do I know if my decrease is in the right place?

Check your pattern instructions — they specify the row number and position within the row. Count your stitches after each decrease to confirm you have the correct stitch count. If you lose track, count the stitches on your needle and compare to what the pattern says you should have at that point.