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Crochet beanie pattern — one piece, 34 rounds from the crown down

A free crochet beanie pattern for a smooth adult hat about 56 cm around, worked on a 5.0 mm hook in one colour over about three hours. Round 12 is the only round that decides anything — it is where the increases stop and the flat disc becomes a tube, and because the count never moves again, the 72 stitches you have at that point are the circumference of the finished hat. All 34 rounds are written out from the crown down, each carrying the count it ends on, and the fabric is plain single crochet rather than ribbing.

Maths verified, not yet made. Every one of the 34 rounds was checked against the round before it by machine — the counts, the increases and the decreases all add up. What nobody can promise you yet is how it sits in the hand.How we check
6 of 8 checks ran on 2026-09-04
  • 1 format and stitch chainscripts/validate.py — 113 patterns, all counts chain.
  • 2 catalogue auditscripts/audit-patterns.py — 113 audited, 0 errors, 66 warnings.
  • 3 geometrygeometry-check.py — 113 checked, 0 errors, 4 warnings.
  • 5 not a duplicate113 distinct display names across 113 patterns
  • 6c target on the recordseo.headKeyword, confidence and demand present and cross-checked by scripts/validate.py
  • 8 page readinessscripts/check-completeness.py --gate — 0 required fields missing, 114 editorial flags, 0 unearned claims.
Not yet checked
  • 4 render matches the pattern — no image has been compared against its own prompt, so a render showing a piece the rounds do not make would not be caught here. Nothing has counted how many do.
  • 6a recognisability — provenance.recognisability is empty in every pattern, so there is no feature list to check the parts against.
Why it is rated Easy

Easy: twelve increase rounds and twenty-two plain ones, with no decreases at all. The one thing to get right is stopping the increases at 72.

Sell what you make. Anything you crochet from this pattern is yours to sell — any quantity, no fee, no credit required.

00
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What you need before you start

gather it once, in one place
Expand

Yarn — one colour, weight 4

Harbour2 ballsWorsted

Tools

2 you probably own

You likely have

Tapestry needle
Scissors

Optional

Stitch marker

Gauge and finished size

the last check before you cast on
Tension
Worth checking early — a hat that is out by a little is out by a lot. Work the crown to the end of round 12, where the increases stop, and lay it on the head it is for before you start down the sides. Nothing changes width after that round.
Finished size
~56 cm around — an adult head

How to make the simple beanie

34 rounds in one piece.

Switching rewrites every round:US6 sc in a magic ring→UK6 dc in a magic ringWork a US sc as a UK single crochet and the fabric comes out looser and taller.
1
01

The hat

Twelve increase rounds take a magic ring of six out to seventy-two…34 RNDS
starts in harbour· magic ring· Piece 1 of 1

Twelve increase rounds take a magic ring of six out to seventy-two stitches, and then twenty-two rounds of seventy-two run straight down to the brim.The count stops growing at 72 and never moves again. If the hat sits short on the head, add straight rounds of 72 before you fasten off; there is no shaping at the brim to redo.

Rounds 1 to 6 of The hat: 6, 12, 18, 24, 30, 36 stitchesFirst six rounds[6] [12] [18] [24] [30] [36]

The crown, out to 72

RND 1–12
16 sc in a magic ring[6]
2inc x6[12]
3(1 sc, inc) x6[18]
4(2 sc, inc) x6[24]
5(3 sc, inc) x6[30]
6(4 sc, inc) x6[36]
7(5 sc, inc) x6[42]
8(6 sc, inc) x6[48]
9(7 sc, inc) x6[54]
10(8 sc, inc) x6[60]
11(9 sc, inc) x6[66]
12(10 sc, inc) x6[72]

Straight down to the brim

RND 13–34
13sc in each st around[72]
14sc in each st around[72]
15sc in each st around[72]
16sc in each st around[72]
17sc in each st around[72]
18sc in each st around[72]
19sc in each st around[72]
20sc in each st around[72]
21sc in each st around[72]
22sc in each st around[72]
23sc in each st around[72]
24sc in each st around[72]
25sc in each st around[72]
26sc in each st around[72]
27sc in each st around[72]
28sc in each st around[72]
29sc in each st around[72]
30sc in each st around[72]
31sc in each st around[72]
32sc in each st around[72]
33sc in each st around[72]
34sc in each st around[72]
US termsMRmagic ringscsingle crochetincincreaseststitch
When this piece is doneThe hat is done.Fasten off and weave the tail down the inside of the last round. Set the hat crown up on the table first — the disc should stay flat all the way to round 12 and only turn down after it, and a crown that domes early means the increases came too fast.

Three notes on the simple beanie

Read them
01Worked in plain single crochet throughout, so the fabric is smooth with the faint spiral a continuous round leaves. It is not ribbed: vertical ribs need rows or post stitches, and neither is something this app can count.
02Worked from the crown down, so you can try it on from about round twenty.
03The brim is the last few rounds. Stop when it sits where you want it.

Three questions this pattern answers

Not questions anybody asked. Each one is written from this pattern's own record, and every answer is read off the fields it names.

Is there a gauge to match for the simple beanie?

No stitches-to-the-centimetre figure to match, because nobody has swatched this one; what the pattern asks for instead is a technique: worth checking early — a hat that is out by a little is out by a lot. Work the crown to the end of round 12, where the increases stop, and lay it on the head it is for before you start down the sides. Nothing changes width after that round.

What hook will the simple beanie need, and what is the finished size?

A 5.0 mm hook, US H/8. Finished, it comes out ~56 cm around — an adult head; the leading tilde is there because that came off the stitch counts rather than a tape measure.

How long will the simple beanie take to crochet?

About three hours. That is 34 rounds of the simple beanie, worked as one piece, coming to 1,920 single crochet and 66 increases, and the hours are an estimate rather than a timing of anybody making it.

A round that will not add up?
Tell us the piece and the round number — the stepper already knows where you are.There is nowhere to send one yet.
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Piece 1 of 1The hat0 OF 34 ROUNDS WORKED
Round1/346 sc in a magic ring[6]
Start at round 1