Binding off closes your stitches so they don't unravel
Binding off (also called casting off) is the method you use to find the last row of stitches on your knitting so they stay in place instead of coming loose. It's the final step before you remove your work from the needles. The most common technique is the basic bind-off, which takes about a minute per row and works on nearly every project.
To bind off using the basic method: knit two stitches, pass the first stitch over the second one and off the needle, knit one more stitch, pass the previous stitch over it, and repeat until one stitch remains. Cut your yarn, pull the tail through that last loop, and tighten it. Your piece is now finished.
Key Takeaways
- The basic bind-off works by knitting two stitches, then passing the first stitch over the second and off the needle, repeating across the row.
- You need scissors and a yarn needle to weave in the tail after binding off, which prevents the stitch from coming undone.
- Binding off too tightly creates a stiff edge; binding off too loosely leaves a floppy edge that doesn't match your fabric.
- Different stitch patterns and project types may call for specialized bind-offs like the stretchy bind-off or the suspended bind-off.
The basic bind-off step by step
Start with your stitches still on the needle and your working yarn attached. Knit the first two stitches normally. You now have two stitches on your right needle.
Using your left needle, insert the tip under the first stitch (the one closest to the needle tip) on your right needle. Lift it up and over the second stitch and off the needle entirely. You're left with one stitch on the right needle. Knit one more stitch from the left needle. Now you have two stitches on the right needle again. Repeat this lift-and-over motion until you reach the end of the row.
When only one stitch remains on your right needle, cut the yarn, leaving a tail about 4 to 6 inches long. Pull the tail through that final loop and pull tight. The stitch is now locked in place.
Tension matters when binding off
Binding off too tightly creates an edge that's stiff and doesn't stretch, which is especially noticeable on necklines and cuffs. Binding off too loosely leaves loops that look unfinished and can catch on things. The goal is to match the tension of your regular knitting.
If you tend to bind off tight, try using a needle one or two sizes larger for just the bind-off row. If your bind-off edge is too loose, use a smaller needle or focus on keeping even tension as you lift each stitch over. Practice on a scrap piece first if you're unsure.
Weaving in the tail prevents unraveling
After you bind off and pull the yarn tail through the final stitch, that tail needs to be secured into the fabric. Thread the tail onto a yarn needle (a blunt needle with a large eye). Weave the needle through the bumps on the back of your stitches for about 2 inches, then reverse direction and weave back through a different path for another inch or two. This anchors the tail so it won't pull loose.
Trim the remaining tail close to the fabric. If you leave it too long, it can catch and pull; if you trim it too short, it may slip out. About a quarter-inch from the fabric is the right length.
Specialized bind-offs for different projects
The basic bind-off works for most projects, but some situations call for a different finish. A stretchy bind-off (also called the yarn-over bind-off) creates an elastic edge that won't restrict movement, making it ideal for sock cuffs and sweater necklines. Instead of knitting two stitches, you yarn over, knit two, and pass the yarn-over over both stitches.
A suspended bind-off is gentler on your stitches and creates a softer edge. Instead of passing a stitch directly over, you slip it to a holder, knit the next stitch, then pass the held stitch over. This takes longer but produces a more polished finish on visible edges.
For ribbed edges, a ribbed bind-off follows the pattern of your stitches: if you're binding off over a knit-purl rib, you knit the knits and purl the purls as you bind off. This keeps the edge from flaring or puckering.
Common mistakes when binding off
Binding off while your stitches are still too loose on the needle makes the edge uneven. Make sure each stitch is seated properly on the needle before you lift it over. If you accidentally drop a stitch while binding off, stop when ready and pick it up with a crochet hook before continuing.
Another common error is forgetting to cut the yarn long enough before pulling it through the final stitch. If your tail is too short, you won't have enough length to weave in, and the stitch can slip. Always cut at least 4 inches.
Don't bind off on the wrong side of your work unless the pattern specifically calls for it. Most projects look better with the bind-off edge on the public-facing side, where the finish is visible.
What to do if you bind off too tightly
If your bind-off edge is too stiff and doesn't match your fabric, you can carefully cut out the bind-off row and pick up the stitches again with a larger needle, then bind off a second time. This takes patience but fixes the problem. Alternatively, you can gently stretch the edge while blocking your finished piece, which relaxes the tension somewhat.
For future projects, remember to use a larger needle or consciously loosen your tension as you bind off. Some knitters find it helpful to take a breath between each stitch to avoid unconsciously tightening.
Frequently Asked Questions
Can I bind off on the wrong side of my work?
You can, but most projects look better with the bind-off on the public side. If your pattern calls for binding off on the wrong side, follow those instructions. Otherwise, bind off on the side that will be visible.
What if I run out of yarn before I finish binding off?
Join a new length of yarn by tying it to your working yarn with a square knot, leaving tails to weave in later. Continue binding off with the new yarn. The knot will be hidden inside the edge.
Do I have to bind off every project?
Yes. Without binding off, your stitches will unravel as soon as you remove the needles. The only exception is if you're picking up stitches from that edge for another part of the project, in which case you bind off after you've finished the new section.
How tight should my bind-off be?
Your bind-off should feel about the same as your regular knitting tension. If you can't slide the stitches along the needle easily while binding off, you're too tight. If the loops are visibly loose and floppy, you're too loose.
Can I bind off in the middle of a project?
Yes, if you're creating an opening like an armhole or buttonhole. Bind off the stitches you want to close, then continue knitting the remaining stitches. You'll bind off those stitches when you reach the end of the project.