Knitting in the round means working in circles instead of back and forth

Knitting in the round creates a tube of fabric without a seam running up the side. Instead of turning your work at the end of each row and knitting back the other direction, you knit continuously around a circle, always working on the same side of the fabric. This is how you make seamless socks, hats, sleeves, and the body of sweaters.

You have two main methods: circular needles (two needle tips connected by a cable) or double-pointed needles (a set of four or five short needles). Both produce the same result. Which one you choose depends on what you are making and what feels comfortable in your hands.

Key Takeaways

  • Circular needles and double-pointed needles are the two tools for knitting in the round, and both work equally well — the choice is personal preference.
  • You cast on the same way as flat knitting, but instead of turning to purl back, you join the stitches into a circle and knit continuously.
  • The join is the trickiest part: make sure your cast-on edge is not twisted around the needle before you knit the first stitch.
  • A lifeline (a length of yarn threaded through your stitches) lets you rip back safely if you make a mistake without losing all your work.
  • Circular needles work best for larger projects like sweater bodies; double-pointed needles work best for small circumferences like sock cuffs.

Choosing between circular needles and double-pointed needles

Circular needles are one long needle with a cable connecting two short tips. They come in different cable lengths — typically 16 inches, 24 inches, and 32 inches. The cable length should be shorter than the circumference of what you are knitting, or your stitches will spread too far apart and be hard to work. A 16-inch needle works for hats and sock cuffs; a 24-inch works for sweater bodies and large blankets.

Double-pointed needles (often called DPNs) come in sets of four or five needles. You distribute your stitches across three or four needles and use the empty needle to knit with. They work for any circumference, even very small ones, because you only need enough needle length to hold a few stitches at a time. Many knitters find them fiddly at first but prefer them for socks and small projects once they get used to them.

Start with whichever appeals to you. Circular needles feel more like regular knitting and are easier to hold. Double-pointed needles have a steeper learning curve but are cheaper and take up less space. You can always switch later.

Casting on and joining without twisting

Cast on the number of stitches your pattern calls for using your usual method — long-tail, cable, or whatever you prefer. Cast directly onto the circular needle or DPNs. The cast-on edge will hang down from the needle in a loop.

Before you knit the first stitch, check that your cast-on edge is not twisted. Lay the needle flat on a table and look at the loops along the bottom. They should all face the same direction — toward you or away from you, consistently. If the edge spirals or twists around the needle, gently untwist it by rotating the needle. This is the most common mistake, and it creates a permanent twist in your fabric that you cannot fix without ripping back to the cast-on.

Once the cast-on is straight, knit the first stitch. This joins the circle. From that point on, you knit in a continuous spiral. You never turn your work. The first round will feel loose and awkward — this is normal. By the second round, the tension usually settles.

Working with circular needles

Hold a circular needle the same way you hold straight needles. The cable hangs below your hands and does not interfere with your knitting. As you work, the stitches you have already knitted slide back along the cable, and the stitches you are about to knit sit on the right needle tip.

The main adjustment is that there is no "end of row" — you straightforward keep knitting. If your pattern calls for a knit round, you knit every stitch. If it calls for a purl round, you purl every stitch. Stitch patterns (like ribbing or colorwork) repeat around the circle instead of back and forth.

Mark the beginning of each round with a stitch marker. Slip it from the left needle to the right needle as you pass it, so you always know where round 1 ended and round 2 began. This prevents you from accidentally knitting an extra stitch or missing a stitch.

Working with double-pointed needles

Cast on all your stitches onto one DPN. Distribute them evenly across three needles (or four, depending on your set size). If you have 60 stitches and four needles, put 15 stitches on each of three needles and leave the fourth empty to knit with.

Hold the three needles with stitches in your left hand, arranged in a triangle or square. Use the empty needle to knit the stitches from the first needle. Once that needle is empty, rotate it to become your working needle, and use the now-empty needle to knit from the next needle. You are always working with the same three needles in a cycle.

The join happens the same way: knit the first stitch to join the circle, then continue around. DPNs feel awkward for the first few rounds because the needles are short and you have multiple needle tips to manage. By round three or four, most knitters find a rhythm.

Fixing mistakes and using a lifeline

If you make a mistake several rounds back, you have two choices: rip back and reknit, or use a lifeline. A lifeline is a length of yarn (in a contrasting color) threaded through all your stitches at a safe point. If you mess up later, you can rip back to the lifeline, pick up the stitches from the lifeline, and continue without losing your work.

To place a lifeline, thread a blunt needle with yarn and pass it through every stitch on your needles from left to right. Do this at the end of a round you are happy with. Leave the yarn in place as you continue knitting. If you need to rip back, pull out the working yarn, then carefully pull the lifeline tight. The stitches will sit on the lifeline, and you can pick them back up onto your needle.

Lifelines are especially useful when you are learning, because they let you experiment without fear of losing hours of work. Many knitters place one every 10 rounds or so on large projects.

Common problems and how to avoid them

Laddering (loose stitches between needles on DPNs) happens when you knit too loosely at the transition between needles. The fix is to knit the first stitch after each needle change slightly tighter than the rest. Some knitters knit the first two stitches of each new needle tighter. This takes practice but becomes automatic.

A gap at the join (between your cast-on and your first knitted stitch) is usually caused by casting on too loosely or not pulling the yarn tight when you knit the first stitch. On your next project, cast on a little tighter, or knit the first stitch of the first round with slightly more tension.

Stitches sliding off the needle happens more often with circular needles if the cable is too long for your circumference. The stitches spread out and fall off the tips. Switch to a shorter cable, or use DPNs instead.

Frequently Asked Questions

Do I have to use a stitch marker to mark the beginning of the round?

No, but it is very helpful, especially when you are learning. Without a marker, it is straightforward to lose track of where the round started and accidentally knit an extra stitch or miss a decrease. Once you are comfortable, you can skip it, but most experienced knitters still use one.

What size circular needle should I buy for a sweater?

Measure the circumference of the sweater body at the widest point and choose a cable length that is 1 to 2 inches shorter than that measurement. For most adult sweaters, a 24-inch or 32-inch cable works. If you are unsure, a 24-inch is the most versatile size to start with.

Can I knit a hat on circular needles if it is too small?

Once your hat gets too small to fit on the circular needle comfortably, switch to double-pointed needles for the crown decreases. Many knitters knit the whole hat on a 16-inch circular needle, then switch to DPNs for the last 20 or 30 rounds when the stitches get crowded.

Why does my first round always look loose?

The join creates a loose stitch because the yarn has to travel from the last cast-on stitch back to the first stitch you knitted. This is normal and evens out by the second or third round. If it bothers you, you can knit the first round slightly tighter, or accept it as part of the process.

Do I need to buy expensive needles to knit in the round?

No. Bamboo or wooden needles are inexpensive and work perfectly well. Metal needles are faster but can feel cold in your hands. Start with whatever is affordable and comfortable, and upgrade later if you want to.