The Basic Steps to Knit Mittens

Knitting mittens means casting on stitches, knitting a cuff, increasing for the hand, dividing stitches for the thumb, finishing the hand, then picking up stitches to complete the thumb. The whole process takes between eight and fifteen hours depending on yarn weight and your speed. Most mittens use between 40 and 60 stitches cast on, worked in the round on either circular needles or double-pointed needles.

The standard order is: cast on, knit the cuff (usually 1.5 to 2 inches of ribbing), knit the hand straight up until you reach the base of the thumb, create a thumb opening by either binding off stitches or placing them on scrap yarn, continue the hand to the fingertips, decrease to close the top, then return to the thumb opening to pick up and finish the thumb. Each section builds directly on the last, so you cannot skip steps or change the order without reworking your math.

Key Takeaways

  • Cast on 40 to 60 stitches depending on hand size and yarn weight, then knit a 1.5 to 2 inch cuff in ribbing before starting the hand.
  • Create the thumb opening by binding off or placing 8 to 12 stitches on scrap yarn when you reach the base of your thumb, then continue knitting the hand.
  • Decrease stitches at the top of the hand by knitting two stitches together at each side until only 8 to 10 stitches remain, then cut yarn and pull it through to close.
  • Pick up stitches around the thumb opening and knit the thumb in the round until it reaches your knuckle, then decrease and close the same way as the hand.
  • Worsted weight yarn and size 6 to 8 needles work well for beginners because the stitches are large and straightforward to see.

Choosing Yarn Weight and Needle Size

Worsted weight yarn (also called medium or #4) is the easiest choice for your first pair because the stitches are large enough to see and fix easily. Worsted mittens take roughly 100 to 150 yards of yarn per pair. Bulky weight (#5) uses less yarn and knits faster but is harder to shape neatly at the decreases. Fingering weight (#1) or sport weight (#2) creates thinner, more fitted mittens but requires more patience and finer needles.

Match your needle size to your yarn: worsted weight typically calls for size 6 to 8 needles (US sizing), and the yarn label will recommend a range. Needles that are too small make tight stitches that are hard to work; needles that are too large create loose, droopy fabric. You can use either circular needles (24 inches long) or a set of four double-pointed needles. Circular needles are easier to manage if you have never knit in the round before.

Casting On and Knitting the Cuff

Cast on 48 stitches using the long-tail cast-on or your preferred method. Divide them evenly across your needles if using double-pointed needles (12 stitches per needle on a set of four), or straightforward place them on a circular needle. Join to knit in the round, being careful not to twist the stitches before you start.

Knit the cuff in 1x1 ribbing (knit one stitch, purl one stitch, repeat) for 1.5 to 2 inches. Ribbing is stretchy and keeps the cuff from rolling. Count your rounds by marking every tenth round with a stitch marker or a piece of yarn. After the cuff is done, switch to knitting every stitch (stockinette stitch) and continue straight up the hand until the piece reaches the base of your thumb — usually 2 to 2.5 inches from the cast-on edge.

Creating the Thumb Opening

When you reach the thumb position, you need to create a hole. The two most common methods are binding off stitches or placing them on scrap yarn. Binding off is simpler for beginners: knit across until you reach the side of the hand where the thumb sits (roughly one-quarter of the way around), bind off the next 8 to 12 stitches, then knit to the end of the round. On the next round, cast on 8 to 12 new stitches above the bound-off gap using the backward loop cast-on or cable cast-on.

The scrap yarn method is faster to undo if you make a mistake: knit to the thumb position, slip the next 8 to 12 stitches onto a piece of scrap yarn instead of knitting them, then knit to the end of the round. On the next round, knit across the gap as if the stitches were still there. Either way, you now have an opening you will return to later.

Knitting the Hand and Decreasing the Top

Continue knitting in stockinette stitch straight up from the thumb opening until the piece reaches your knuckle — usually 2 to 2.5 inches more. Then begin decreasing to shape the top. On the next round, knit two stitches together at the beginning and again halfway around (at the opposite side of the hand). This removes two stitches per round. Repeat this decrease every round until you have 8 to 10 stitches left.

Cut the yarn, leaving a 6-inch tail. Thread the tail through a yarn needle, pass it through all remaining stitches, and pull tight to close the hole. Weave the tail through the stitches on the inside to find it, then trim the excess. You now have a complete mitten hand.

Finishing the Thumb

Return to the thumb opening. If you bound off stitches, pick up stitches around the opening: pick up one stitch in each bound-off stitch, then pick up one stitch in each cast-on stitch above the gap. You should have roughly 16 to 20 stitches. If you used scrap yarn, pull it out and place the live stitches back on your needle, then pick up stitches along the sides of the gap (usually 4 to 6 stitches on each side).

Knit the thumb in the round until it reaches the base of your fingernail — usually 1.5 to 2 inches. Then decrease the same way as the hand: knit two together at opposite sides every round until 8 stitches remain. Close the top with a yarn needle and tail, weave in the end, and trim. Weave in any remaining tails on the inside of the mittens, block them gently if desired, and they are ready to wear.

Common Mistakes and How to Avoid Them

The most frequent error is twisting the cast-on stitches before joining to knit in the round, which creates a permanent spiral. Check before you knit the first round: all stitches should sit flat on the needle with the working yarn attached at the right end. If you spot a twist, unravel and recast on.

The second common problem is making the thumb opening too small or too large. If it is too small, your thumb will be tight; if too large, there will be gaps. Start with 10 stitches for the opening and adjust up or down by one or two stitches on your second mitten if needed. The third mistake is decreasing too slowly at the top, which leaves a long pointed tip instead of a rounded crown. Decrease every round once you start, not every other round.

Frequently Asked Questions

What if I drop a stitch while knitting?

Stop as soon as you notice it. Use a crochet hook to pick up the dropped stitch by inserting the hook through the loop and pulling the working yarn through it, one row at a time, until the stitch is back on the needle. If the stitch has dropped several rows, work from the bottom up. Practice this on a swatch before you start your mittens.

Can I knit mittens flat on straight needles instead of in the round?

Yes, but you will need to seam the sides together afterward. Knit two rectangles (one for each mitten), seam three sides, stuff loosely, then seam the top closed. Knitting in the round is faster because there is no seaming, but flat knitting works if circular or double-pointed needles feel awkward to you.

How do I make mittens that fit a child?

Cast on 36 to 40 stitches instead of 48, and reduce all measurements by about one-quarter inch. A child's cuff is usually 1 to 1.5 inches, the hand 1.5 to 2 inches, and the thumb 1 to 1.5 inches. Measure your child's hand from wrist to fingertip and compare to your progress as you knit.

What yarn weight is best for warm mittens?

Bulky weight (#5) or super bulky (#6) creates the warmest mittens because the fabric is dense. Worsted weight is a good middle ground: warm enough for most winters but not so thick that your hands feel clumsy. Avoid fingering weight for winter mittens unless you plan to wear them over a liner glove.

Do I need to block my mittens after knitting?

Blocking is optional but helpful. Wet the finished mittens, gently squeeze out excess water, shape them over your hands or a blocking form, and let them dry flat. Blocking evens out uneven stitches and helps the mittens hold their shape. If your stitches are already even, you can skip this step.