Round-by-round pattern for a crochet ball or flat circle of any size: increases, even rounds and decreases.
Shape
Ball
(sphere)
Flat
circle
Ball (sphere)
Flat circle
Ball (sphere)
Flat circle
3D preview
Drag sideways to turn the ball. Tap a round to see its stitches.
Increase
Even
Decrease
Each band is one round, as wide as its stitch count. The shape is a sketch of the stuffed ball.
Size by
Widest
round
Diameter
Widest round
Diameter
Widest round
Diameter
Stitches in the widest round
A multiple of 6, from 12 to 240.
Your gauge: sc per 4 in
Tight amigurumi: worsted + 3.5 mm hook ≈ 20.
Pattern
17 rounds, widest round 36 sts
Size
about 2.29 in across
Rnd 1
6 sc in a magic ring (6)
Rnd 2
inc × 6 (12)
Rnd 3
(sc 1, inc) × 6 (18)
Rnd 4
(sc 2, inc) × 6 (24)
Rnd 5
(sc 3, inc) × 6 (30)
Rnd 6
(sc 4, inc) × 6 (36)
Rnds 7–12
sc in each stitch (36)
Rnd 13
(sc 4, dec) × 6 (30)
Rnd 14
(sc 3, dec) × 6 (24)
Rnd 15
(sc 2, dec) × 6 (18)
Rnd 16
(sc 1, dec) × 6 (12)
Rnd 17
dec × 6 (6); stuff firmly, fasten off and close the hole
Stuff
start stuffing when about 18 stitches are left
Key
inc = 2 sc in one stitch, dec = sc 2 together (invisible decrease looks best)
How it works
Pick the widest round (a multiple of 6) or type the diameter you want and your gauge. The calculator writes every round: 6 in a magic ring, increases of 6 a round, rounds even, then decreases back to 6.
Example: a 36-stitch ball is 17 rounds. Rounds 1–6 grow 6, 12, 18, 24, 30, 36; rounds 7–12 are worked even; rounds 13–17 decrease 30, 24, 18, 12, 6.
From a size: a 3 in ball at 20 sc per 4 in needs π × 3 × 5 = 47 stitches around, so a widest round of 48 (about 3.06 in across).
Frequently asked questions
How many rounds is a 36 stitch amigurumi ball?
17 rounds: 6 rounds of increases to 36, 6 rounds even, then 5 rounds of decreases back to 6.
Why do I increase 6 stitches every round?
A circle’s edge grows by about 2π (6.28) times the height of each round, and a single crochet round is about as tall as a stitch is wide, so 6 more stitches a round keep the work flat.
How do I make my ball rounder?
Move the increases around: start each round’s repeat with a different number of stitches so they don’t stack into six corners, and use the invisible decrease.