How to Knit a Beanie for Beginners: A Step-by-Step Guide

To knit a beanie, start with a stretchy ribbed edge, join the stitches in the round, and knit the body before decreasing to close the top. Most of the hat is a straightforward tube. The parts worth slowing down for are the fit, the first join, and the crown.

This guide takes you through one adult-sized beanie from start to finish. You’ll use circular needles, work a fold-up cuff, and follow a round-by-round decrease table so you can check your stitch count as you go.

What You’ll Make

The beanie has a 1×1 ribbed cuff and a smooth stockinette body. In circular knitting, stockinette means knitting every stitch on every round; you won’t alternate knit and purl rows for the body.

This is a first-hat project for someone who can already cast on, knit, and purl. The swatch is a useful place to practice before committing to the full cast-on.

Use the centimeter measurements consistently; inch equivalents are rounded. These dimensions depend on matching the gauge. They are not a one-size-fits-all rule.

What You Need to Knit a Beanie

Choosing Your Yarn

A smooth, medium-weight yarn is a useful starting point. Look for worsted weight, usually labeled category 4. A springy wool or wool blend is suitable for the stretch this example needs. If wool isn’t comfortable for you, choose a soft alternative and check both its gauge and how well the fabric springs back.

A light or medium solid color makes individual stitches easier to see. Very dark, fluffy, or highly textured yarn can make it harder to tell a dropped stitch from an uneven one.

The category number is only a starting point. Two worsted-weight yarns can produce different fabrics on the same needles, so the swatch—not just the label—determines whether the yarn works here.

How Much Yarn Will You Need?

For planning, have approximately 200–250 meters / 220–275 yards of suitable worsted-weight yarn available. This is a purchasing allowance for the adult example and a swatch, not a measured consumption figure. Buy extra if you plan a deeper cuff, a slouchier body, or a pom-pom.

Check the length on the ball band rather than relying on the number of balls or grams alone. Two 100 g balls can contain quite different amounts of yarn. If you’re changing the size or yarn, the guide to how much yarn you need for a beanie covers the factors to consider when estimating your supply.

Knitting Needles and Other Tools

Have these ready:

• A 40 cm / 16-inch circular needle, measured tip to tip. Start swatching with 5 mm / US 8 needles and change size if needed to match the gauge.
• A set of double-pointed needles in the size that gives you gauge, for the small circumference at the crown.
• Eight stitch markers, with one noticeably different marker for the beginning of the round.
• A tapestry needle, scissors, and a tape measure.
• A short length of smooth waste yarn or a spare long needle cable for checking the fit safely.
• An optional crochet hook for recovering dropped stitches.

A round is one complete trip around all the stitches. In the instructions, k means knit, p means purl, and k2tog means knit two stitches together. That last operation turns two stitches into one and is the only decrease used in this example.

Getting the Size and Gauge Right

Choose Your Size and Check the Measurements

Measure around the head where the lower edge of the beanie will sit, keeping the tape level and snug without pulling it tight. Use the intended wearer’s measurement rather than a general label such as “men’s” or “women’s.”

This example is intended for a 56–58 cm head. Its calculated 52 cm body circumference leaves room for the knit to stretch when worn. That difference is called negative ease.

If the head measurement falls outside that range, don’t assume the same 104 stitches will fit. A different size needs compatible changes to the cast-on, body length, and crown instructions. For a first project, it is simpler to follow a pattern written for the required size than to redesign several parts at once.

Knit a Gauge Swatch

The target is 20 stitches and 28 rounds over 10 cm in stockinette, after washing and drying. Check the smooth body fabric, not the ribbed cuff. Because the hat is knitted in the round, use a swatch that reproduces knit-only rounds rather than ordinary back-and-forth stockinette.

You can do this without making a whole tube:

1. Cast on about 32 stitches using your circular needle and knit across them.
2. Without turning the fabric, slide the stitches to the other needle tip.
3. Carry the working yarn loosely across the back and knit the next row with the same side facing you. Leave the strand at the back long enough for the swatch to lie flat without being squeezed.
4. Repeat until the fabric is at least 12–14 cm tall. Bind off loosely, wash according to the yarn label, and dry flat.
5. Count stitches and rows across a central 10 cm square, keeping away from the loose edges. Don’t stretch the fabric to make the numbers match.

More than 20 stitches across 10 cm means your stitches are smaller than required; try a larger needle and swatch again. Fewer than 20 means they are larger; try a smaller needle. Also note the round count, because it affects the depth of the crown.

How Many Stitches Should You Cast On?

For this example, cast on 104 stitches once you match the gauge.

The sizing calculation is straightforward: 20 stitches across 10 cm equals 2 stitches per centimeter. At that density, 104 stitches make a 52 cm circumference.

Changing the gauge changes the result. At 22 stitches per 10 cm, the same cast-on produces a circumference of about 47 cm. At 18 stitches, it produces nearly 58 cm. That is a substantial difference even though the stitch count hasn’t changed.

The 104 stitches also divide into eight groups of 13 for the crown. Keep that relationship in mind: adding or removing a few stitches for fit without changing the decrease instructions will stop the table below from working correctly.

How to Knit a Beanie on Circular Needles: Step by Step

Step 1: Cast On Your Stitches

Use a long-tail cast-on to place 104 stitches on the circular needle. Count the slip knot as the first stitch. Keep the edge flexible: snug the loops around the full shaft of the needle rather than tightening them against its narrow tip.

Count the stitches again before joining. Temporary markers every 10 or 20 stitches can make this easier; remove them once the count is confirmed.

Step 2: Join in the Round Without Twisting

Lay the needle and cable on a table. Follow the cast-on edge all the way around, checking that it stays on the inside of the circle instead of wrapping around the cable.

Hold the needle with the working yarn in your right hand and the first cast-on stitch in your left. Place the distinctive beginning-of-round marker on the right needle, then knit the first stitch from the left needle using the working yarn. That connects the two ends. Purl the next stitch and continue alternating knit and purl.

Keep a little tension on the first couple of stitches so the join isn’t loose, but don’t pull them tight enough to distort the edge. You do not need an extra stitch for this joining method.

Check the edge again after the first round. If it has twisted into a loop, undo that round and reconnect it correctly. A twist is much easier to fix now than several centimeters later.

Step 3: Knit the Ribbed Brim

Work k1, p1 all the way around, repeating the same sequence on every round. Slip the marker from one needle to the other whenever you reach it; don’t knit it into the fabric.

Continue until the ribbing measures 8 cm from the cast-on edge, without stretching it. Later, folding it up by about 4 cm will create the doubled cuff.

When moving between knit and purl, bring the yarn between the needle tips: to the front for a purl stitch, and to the back for a knit stitch. Taking it over the needle can create an extra loop and an unwanted hole.

Before continuing, check that you still have 104 stitches and that the rib columns line up. A little unevenness is different from an extra or missing stitch; count before deciding what needs correcting.

Step 4: Knit the Body to the Right Length

Switch to knitting every stitch on every round. Keep using the same needle size that produced your gauge. The fabric above the cuff will become smooth columns of V-shaped stitches.

After a few centimeters, check the fit. Transfer the live stitches to a spare long cable or smooth waste yarn and secure them before trying the hat on. Don’t try to stretch it over your head while it is still constrained by the short circular needle.

If the fit is comfortable, return the stitches to the needle in the same order and continue until the work measures 20 cm from the original cast-on edge, with the cuff unfolded. This measurement includes the 8 cm of ribbing; it is not 20 cm of body added above the cuff.

The crown adds approximately another 6.4 cm at the stated round gauge. That is why you start decreasing before the unfinished tube reaches the intended full height.

Step 5: Shape the Crown with Decreases

First, divide the stitches into eight sections of 13. Starting at the round marker, count 13 stitches and place a marker, then repeat. Add seven markers; the existing round marker closes the eighth section. You can slip the stitches around the cable to arrange the markers without knitting an extra round.

For k2tog, insert the right needle through the next two stitches together as if knitting one stitch. Wrap the yarn, pull one new loop through both stitches, and slide the two old stitches off the left needle. You now have one stitch where there were two.

Follow the table in order. On each decrease round, work the instruction once in every section, slipping each marker as you reach it. There are eight repeats per round.

From round 13 onward, there are no plain rounds between decrease rounds. Mark your place in the table so you don’t accidentally continue the earlier alternating sequence.

As the crown gets smaller, the stitches will stop traveling comfortably around the 40 cm needle. Transfer them to matching double-pointed needles before you have to pull the fabric taut. Spread the stitches over three or four needles, keep them in order, and use a spare needle to work around them. Keep the same beginning-of-round position and section counts. If a ring marker would fall off the end of a needle, rearrange the stitches so the marker sits between stitches instead.

Count after each decrease round. If the total doesn’t match the table, check the eight sections before proceeding. An extra decrease made at random may correct the total but distort the shaping.

Step 6: Close the Top and Weave In the Ends

When eight stitches remain, cut the yarn, leaving a tail of about 25 cm / 10 inches. Thread the tail onto a tapestry needle and pass it through each remaining live stitch, removing the knitting needles as you go.

Gently draw the opening closed. Pass through the gathered loops again if needed, then take the tail to the inside and weave it securely through several stitches in more than one direction. Don’t simply cut it flush against the opening.

Weave in the cast-on tail too. If the first join has a small gap, use that tail to close it neatly. Remember that the cuff will fold outward: hide the end on the side that won’t show when the hat is worn. Stretch the area gently to check that the woven-in yarn doesn’t restrict the fabric before trimming.

Wash and reshape the hat according to the yarn’s care instructions. Press out water in a towel and let it dry flat without stretching it wider. Fold the cuff once the fabric is dry.

Fixing Common Problems as You Knit

Why Is My Beanie Too Tight or Too Loose?

First identify where the problem is. If the body fits but the very bottom edge won’t stretch comfortably, the cast-on may be too tight. Reworking that edge usually means restarting with a more flexible cast-on.

If the whole hat is the wrong size, check the stitch count and gauge. Compare the fabric with your washed swatch, allowing for any change you observed after washing. Blocking is not a dependable way to correct a substantially wrong circumference.

Do this check while the hat is still a short tube. It saves finishing a crown on a hat that already doesn’t fit.

What Should I Do If I Drop a Stitch?

Stop and catch the loose loop with a locking marker or spare needle so it cannot unravel farther.

For a dropped knit stitch in the smooth body, a crochet hook can rebuild the column. Insert the hook through the loose loop from the front, catch the lowest horizontal strand above it, and pull that strand through to make the next loop. Repeat one strand at a time until you reach the current round, then return the stitch to the needle without twisting it.

A dropped stitch in the ribbing or across a decrease needs more care because the structure changes. Keep the loop secured while checking how that section was worked rather than pulling it up indiscriminately.

Why Is There a Hole at the Top?

A hole at the center of the finished crown usually means the remaining stitches weren’t gathered securely, or one loop was missed. Check that all eight final loops are caught, then draw the tail through them again and weave it in securely inside.

A gap farther down the crown is a different problem. Inspect it for a dropped stitch, an accidental yarn-over, or loose tension where you changed needles. Tightening the top closure won’t repair a missing stitch lower in the fabric.

Beanie Knitting FAQs

Can You Knit a Beanie with Straight Needles?

Yes. A beanie can be worked flat in rows and seamed afterward. However, this example is written for knitting in the round. Its body and decrease table should not be transferred unchanged to straight needles: a flat version needs wrong-side rows and appropriate edge stitches for the seam.

If you prefer straight needles, choose a pattern written for that method rather than converting your first hat while learning.

How Long Does It Take to Knit a Beanie?

A few evenings is a reasonable way to plan a first beanie, but the time varies considerably. Swatching, learning the join, and checking mistakes take time beyond the knitting itself.

For a more useful personal estimate, time several body rounds once you feel comfortable. Divide the remaining body length by your round height to estimate how many rounds are left, then allow extra time for the crown and finishing. A promised “one-hour hat” is not a helpful deadline for a new knitter.

Can I Use a Different Yarn or Needle Size?

Yes, if the yarn produces suitable fabric at the required gauge. Adjusting needle size to match gauge is normal. Changing the yarn thickness while keeping the same stitch count is a different matter: it changes the circumference, and may change the crown depth as well.

Check stretch and feel along with the numbers. A fabric that meets gauge but feels stiff or hangs loosely may not give you the fit you want. Recalculate the yarn supply when substituting, too.

How Can I Make My Beanie Slouchier?

Add length to the straight body before starting the crown. For this example, another 2–4 cm / about ¾–1½ inches is a modest starting adjustment. That means beginning the decrease table at a total unfolded length of 22–24 cm instead of 20 cm.

Keep the cast-on and decrease counts unchanged if you only want extra height. Allow more yarn and check the look with the cuff folded before deciding how much length to add.

Your First Beanie Doesn’t Have to Be Perfect

If your first beanie isn’t turning out as you hoped, don’t be discouraged. Take a break, then revisit the step that’s giving you trouble. You don’t have to get everything right on the first try.

If you’d prefer to have your design made, you can also explore custom beanies from Fastsewing. Tell us the colors and details you have in mind, and we’ll help you work out what’s possible.