Technique · Updated May 2026

How to Crochet in the Round: Complete Guide for All Skill Levels

Crocheting in the round is the technique behind hats, amigurumi, granny squares, mandalas, and any project that's circular or cylindrical. The two key choices — spiral rounds versus joined rounds, and how often to increase — determine whether you get a flat disc, a cone, a cylinder, or a sphere.

By Kelley Delano, Editor & Lead Author · Published 22 Feb 2026 · Updated 2 May 2026 · 9 min read

🎯 Key takeaway

Start every round project with a magic ring (not a chain ring) for a seamless centre. Use spiral rounds (no joining each round) for amigurumi and seamless hats, or joined rounds (slip-stitch closing each round) for blankets and mandalas where you need distinct rows visible. For flat circles, follow the 6-12-18-24 rule: increase by 6 stitches every round.

Starting right: the magic ring

The magic ring is the standard start for round projects. Unlike a chain ring (where you slip-stitch a chain into a circle), the magic ring closes completely after the first round, eliminating any visible centre hole. Essential for amigurumi (no stuffing can poke through), important for any other round project where the centre is visible.

How to make a magic ring: wrap the yarn around two fingers of your left hand to form a loop, with the working yarn crossing over the tail. Insert the hook into the loop from front to back, catch the working yarn, and pull it through. Chain 1 (this doesn't count as a stitch — it anchors). Work your first-round stitches (typically 6 sc for a sphere or 8-12 dc for a flat circle) INTO the loop. After completing the round, pull the tail end firmly — the loop tightens to a point.

If the magic ring frustrates you initially, the alternative is to chain 2 and work all first-round stitches into the second chain from hook. This produces a similar start with a slightly visible centre hole. Many crocheters learn this first and switch to the magic ring once comfortable.

Spiral rounds vs joined rounds

Two ways to work in the round, with different appearance and use cases.

Spiral rounds (continuous)

No joining at the end of each round; the work spirals upward continuously. Used for amigurumi, seamless hats, and anywhere a visible "round seam" would be unwanted.

Pro: Seamless fabric — the rounds are invisible from the outside.
Con: You can't tell where one round ends and the next begins by looking. Stitch marker required.
Best for: amigurumi, hats, mittens, anything where you need invisible rounds.

Joined rounds

Each round ends with a slip stitch into the first stitch of that round, then chain up to start the next round (chain 1 for sc, chain 3 for dc). The slip stitch creates a visible "seam" running up the side.

Pro: Clear round boundaries — you can see exactly where you are.
Con: Visible seam line up the side.
Best for: mandalas, doilies, granny-square-style motifs, where each round is meant to be visually distinct.

Increasing for flat circles — the 6-12-18-24 rule

For a flat circle to lie flat (no cupping, no ruffling), the circumference must grow by a consistent number of stitches per round — typically 6 in single crochet, 12 in double crochet. This is called the "6-12-18-24 rule" because round 1 = 6 sc, round 2 = 12 sc, round 3 = 18 sc, round 4 = 24 sc, and so on.

Round	Stitches (sc)	Pattern
1	6	Magic ring, 6 sc
2	12	2 sc in each st (6 increases)
3	18	sc, 2 sc in next × 6 (6 increases)
4	24	2 sc, 2 sc in next × 6 (6 increases)
5	30	3 sc, 2 sc in next × 6 (6 increases)
6	36	4 sc, 2 sc in next × 6 (6 increases)
n	6n	(n-2) sc, 2 sc in next × 6

If you increase more than 6 per round, the circle ruffles (too much circumference). If you increase fewer than 6, the circle cups upward into a bowl. For double crochet flat circles, the pattern shifts to 12 per round.

Shaping with rounds

By varying the increase pattern, you build different 3D shapes:

Flat circle (coaster, doily): increase 6 per round consistently.
Cone (hat crown, ear): increase fewer than 6 per round — for example, 6, 12, 18, 22, 26, 30. The slower increase produces a tapered shape.
Sphere (amigurumi ball): increase to your target circumference, work even rounds for the middle, then decrease back to closure.
Cylinder (cup, stocking leg): increase 2-3 rounds to circumference, then work even rounds.
Bowl / disc-cup: increase slowly enough to cup the fabric upward — useful for baskets and small containers.

Common problems when crocheting in the round

"My circle ruffles": too many increases per round. For sc, drop back to exactly 6 per round. For dc, drop to exactly 12.
"My circle cups upward": not enough increases. Add more increases to hit 6 per round (sc) or 12 (dc).
"My rounds spiral visibly": normal in continuous-round crochet — the start of each round shifts by one stitch position, creating a subtle spiral. If it's severe, your tension is uneven; relax and continue.
"My joined-round seam is too visible": use the invisible join — at the end of the round, cut the yarn, thread it through the top of the first stitch of the round and back through itself. Produces a near-invisible join. Or switch to spiral rounds entirely.
"My magic ring won't close": the tail end needs to be pulled BEFORE you continue working into round 2. Pull firmly until the centre is completely closed, then proceed.
"My continuous spiral is creating a visible 'jog' at the start of each round": the jog is inherent to spiral construction — each round starts one stitch position ahead of the previous round. Position the jog at the back of your project so it's less visible, or switch to joined rounds if a clean vertical seam would be preferable to the spiral jog.

Frequently asked

Direct answers.

What's the 6-12-18-24 rule in crochet?

The standard increase pattern for flat circles in single crochet. Round 1 = 6 sc; round 2 = 12 sc (double); round 3 = 18 sc; round 4 = 24 sc; each round adds 6 stitches. This rate keeps the circle flat — fewer increases produce cupping, more produce ruffling.

Should I use spiral or joined rounds?

Spiral rounds for amigurumi, hats, and any project where a visible round seam is unwanted. Joined rounds for mandalas, doilies, and granny-square motifs where each round needs to be visually distinct. The technique you choose is project-dependent, not skill-dependent — both are equally easy once learned.

How do I close a magic ring?

After completing all round-1 stitches into the loop, pull the tail end of the yarn firmly. The loop contracts to a point. Continue into round 2 once the centre is closed. If you don't pull the tail before round 2, the centre stays open and stuffing or filling can show through (a problem for amigurumi).

Can I crochet in the round without a magic ring?

Yes — chain 2, then work all round-1 stitches into the second chain from the hook. This produces a similar start with a slightly visible centre hole. For non-stuffed projects (mandalas, flat circles, doilies), this works fine. For amigurumi where the centre must close completely, the magic ring is preferred.

Why does my hat keep cupping into a bowl shape?

Insufficient increases. For a hat crown in sc, you need 6 increases per round until you reach the target circumference. If you're increasing only 4 or 5 per round, the fabric cups upward instead of lying flat. Add increases or switch hook size to match the pattern's stated gauge.

How do I make my joined rounds look seamless?

Use the invisible join: at the end of the round, cut the yarn leaving a 6-inch tail. Thread the tail onto a yarn needle, insert it through the top of the first stitch of the round, then back through the centre of the last stitch you completed. Pull gently to tighten. The join blends into the round seamlessly.

Sources & further reading

Craft Yarn Council — Standard Yarn Weight System
Crochet Guild of America (CGOA) — professional standards
Edie Eckman, The Crochet Answer Book (Storey Publishing) — technique reference
Clara Parkes, The Knitter's Book of Yarn (Potter Craft) — fibre properties

June Gilbank (PlanetJune) — amigurumi reference

Kelley Delano

Editor & Lead Author

Kelley is the editor and lead author at Crochet Calc. She works across the site's calculator math, reference articles, and editorial standards, focused on making professional-grade project planning accessible to crocheters at every skill level.

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