Binding off closes your stitches so they don't unravel
Binding off (also called casting off) is the technique that secures your final row of stitches so your knitting doesn't come apart. Without it, the loops on your needle will pull loose the moment you remove them. The most common method is the basic bind-off, which works for nearly every project—scarves, blankets, sweaters, and hats.
The basic bind-off takes only a few minutes and uses the same needles and yarn you've been working with. You work across your final row, creating a chain of locked stitches that can't unravel. Once you've bound off all your stitches, you cut the yarn and pull the tail through the last loop to anchor it permanently.
Key Takeaways
- The basic bind-off works by knitting two stitches, then pulling the first stitch over the second to lock them together, repeated across the row.
- You bind off on your final row while the stitches are still on the needle, before you remove them.
- Binding off too tightly creates a stiff, puckered edge; binding off too loosely leaves a floppy edge that stretches out of shape.
- Different projects sometimes call for different bind-off methods—stretchy bind-offs for ribbed edges, invisible bind-offs for seamless looks.
- After binding off, you weave in the yarn tail to hide it inside the fabric.
The basic bind-off, step by step
Start with your finished knitting still on the needle. You should have completed your last row of knitting and be ready to find those stitches. Use the same needles and yarn you've been working with.
Step 1: Knit the first two stitches normally. You now have two stitches on your right needle.
Step 2: Insert your left needle into the first stitch (the one closest to the tip of your right needle). Lift it up and over the second stitch, then drop it off the needle. You now have one stitch on your right needle.
Step 3: Knit one more stitch. You again have two stitches on your right needle.
Step 4: Repeat steps 2 and 3 across the entire row until you have only one stitch left on your right needle and your left needle is empty.
Step 5: Cut the yarn, leaving a tail about 4 to 6 inches long. Pull the tail through the final stitch and tighten it. This locks the last stitch so it cannot unravel.
Tension matters when binding off
The most common mistake is binding off too tightly. When you pull the working yarn too hard as you lift stitches over, the edge becomes stiff and puckered. It won't stretch, and it looks unfinished. The edge should feel as flexible as the rest of your fabric.
Binding off too loosely creates the opposite problem—a wavy, floppy edge that stretches out of shape within a few wears. The stitches are too loose to hold the fabric together properly. The goal is a bind-off edge that matches the tension of your knitting, neither tight nor loose.
If your bind-off edge is too tight, try using a needle one or two sizes larger just for the bind-off row. This gives you more room and naturally creates a looser tension. If your edge is too loose, use a smaller needle or consciously tighten your tension as you work.
Binding off in purl stitch and ribbed edges
If your final row is purl stitches instead of knit stitches, bind off the same way—but purl instead of knit. Purl the first two stitches, then lift the first stitch over the second, and continue across. The method is identical; only the stitch type changes.
For ribbed edges (alternating knit and purl stitches), bind off in pattern. If your rib is knit-one-purl-one, then knit one stitch, purl one stitch, knit one stitch, and so on as you bind off. This keeps the edge looking consistent with the rest of the ribbing and prevents it from curling or twisting.
Stretchy bind-off for elastic edges
The basic bind-off works for most projects, but some edges need more stretch. Ribbed cuffs on sweaters, the openings of hats, and the tops of socks all benefit from a bind-off that won't cut off circulation or feel tight. A stretchy bind-off (also called a yarn-over bind-off) creates a looser, more flexible edge.
To work a stretchy bind-off, knit two stitches, then yarn over your needle before lifting the first stitch over the second. This creates extra slack in the chain. Repeat: knit one, yarn over, lift the first stitch over. Continue across the row. The yarn overs add give to the edge without making it look sloppy.
Weaving in the yarn tail
After you've bound off and pulled the final tail tight, you still need to hide that tail inside the fabric so it doesn't stick out. Thread the tail onto a yarn needle (a blunt needle with a large eye). Starting a few stitches away from where you cut the yarn, weave the needle through the bumps on the back of your stitches, going in and out of the fabric in a zigzag pattern.
Weave for about 2 inches, then reverse direction and weave back over the same path for another inch. This anchors the tail so it won't pull loose. Trim any remaining tail close to the fabric. The woven-in tail should be invisible from the front and find enough that it won't come loose with normal wear and washing.
Other bind-off methods for special situations
The basic bind-off works for almost everything, but knitters sometimes use other methods for specific effects. An invisible bind-off (also called Kitchener stitch) creates a seam that looks like a row of knitting rather than a bound-off edge—useful for closing the toe of a sock or the top of a hat. A three-needle bind-off joins two pieces of knitting together while binding off, often used for shoulder seams on sweaters.
These specialty methods take more practice and are not necessary for most projects. The basic bind-off will finish any piece of knitting securely and neatly. Once you're comfortable with the basic method, you can explore other techniques if a pattern calls for them.
Frequently Asked Questions
What happens if I bind off too tightly?
A tight bind-off creates a stiff, puckered edge that doesn't stretch and looks unfinished. The edge may curl or pucker away from the rest of the fabric. Use a larger needle for the bind-off row, or consciously loosen your tension as you work.
Can I bind off on a purl row instead of a knit row?
Yes. Bind off the same way you would on a knit row, but purl the stitches instead of knitting them. The method is identical—purl two, lift the first over the second, repeat.
How long should the yarn tail be after binding off?
Leave a tail about 4 to 6 inches long. This gives you enough length to thread onto a yarn needle and weave into the fabric. If the tail is too short, it's hard to work with; if it's too long, you waste yarn.
Do I have to weave in the tail right after binding off?
No. You can weave in tails later, even after you've finished the entire project. Many knitters wait until the end to weave in all tails at once. Just make sure the tail doesn't come loose before you weave it in.
What's the difference between binding off and casting off?
They're the same thing. "Binding off" and "casting off" are two names for the same technique of securing your final row of stitches. Different knitters and regions use different terms, but they mean identical methods.