Minecraft Circle Generator
Choose a diameter, pick hollow or filled, and get a symmetrical circle blueprint with the exact block count and a row-by-row build order. Everything is calculated in your browser as you type.
Controls
Circle Generator
64 x 64 · 204 blocks
Build summary
- Diameter
- 64
- Radius
- 32.0
- Total blocks
- 204
- Rows used
- 64
Symmetry check: mirrors left to right and mirrors top to bottom.
Ring built between the outer edge and an inner edge 1 block inside it.
Row-by-row instructions
- Row 1:skip 26 spaces, place 12 blocks
- Row 2:skip 22 spaces, place 4 blocks, leave 12 spaces, place 4 blocks
- Row 3:skip 20 spaces, place 2 blocks, leave 20 spaces, place 2 blocks
- Row 4:skip 17 spaces, place 3 blocks, leave 24 spaces, place 3 blocks
- Row 5:skip 16 spaces, place 2 blocks, leave 28 spaces, place 2 blocks
- Row 6:skip 14 spaces, place 2 blocks, leave 32 spaces, place 2 blocks
- Row 7:skip 13 spaces, place 1 block, leave 36 spaces, place 1 block
- Row 8:skip 11 spaces, place 2 blocks, leave 38 spaces, place 2 blocks
- Row 9:skip 10 spaces, place 2 blocks, leave 40 spaces, place 2 blocks
- Row 10:skip 9 spaces, place 2 blocks, leave 42 spaces, place 2 blocks
- Row 11:skip 8 spaces, place 2 blocks, leave 44 spaces, place 2 blocks
- Row 12:skip 7 spaces, place 2 blocks, leave 46 spaces, place 2 blocks
- Row 13:skip 7 spaces, place 1 block, leave 48 spaces, place 1 block
- Row 14:skip 6 spaces, place 1 block, leave 50 spaces, place 1 block
- Row 15:skip 5 spaces, place 1 block, leave 52 spaces, place 1 block
- Row 16:skip 5 spaces, place 1 block, leave 52 spaces, place 1 block
- Row 17:skip 4 spaces, place 1 block, leave 54 spaces, place 1 block
- Row 18:skip 3 spaces, place 2 blocks, leave 54 spaces, place 2 blocks
- Row 19:skip 3 spaces, place 1 block, leave 56 spaces, place 1 block
- Row 20:skip 3 spaces, place 1 block, leave 56 spaces, place 1 block
- Row 21:skip 2 spaces, place 1 block, leave 58 spaces, place 1 block
- Row 22:skip 2 spaces, place 1 block, leave 58 spaces, place 1 block
- Row 23:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 24:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 25:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 26:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 27:place 1 block, leave 62 spaces, place 1 block
- Row 28:place 1 block, leave 62 spaces, place 1 block
- Row 29:place 1 block, leave 62 spaces, place 1 block
- Row 30:place 1 block, leave 62 spaces, place 1 block
- Row 31:place 1 block, leave 62 spaces, place 1 block
- Row 32:place 1 block, leave 62 spaces, place 1 block
- Row 33:place 1 block, leave 62 spaces, place 1 block
- Row 34:place 1 block, leave 62 spaces, place 1 block
- Row 35:place 1 block, leave 62 spaces, place 1 block
- Row 36:place 1 block, leave 62 spaces, place 1 block
- Row 37:place 1 block, leave 62 spaces, place 1 block
- Row 38:place 1 block, leave 62 spaces, place 1 block
- Row 39:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 40:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 41:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 42:skip 1 space, place 1 block, leave 60 spaces, place 1 block
- Row 43:skip 2 spaces, place 1 block, leave 58 spaces, place 1 block
- Row 44:skip 2 spaces, place 1 block, leave 58 spaces, place 1 block
- Row 45:skip 3 spaces, place 1 block, leave 56 spaces, place 1 block
- Row 46:skip 3 spaces, place 1 block, leave 56 spaces, place 1 block
- Row 47:skip 3 spaces, place 2 blocks, leave 54 spaces, place 2 blocks
- Row 48:skip 4 spaces, place 1 block, leave 54 spaces, place 1 block
- Row 49:skip 5 spaces, place 1 block, leave 52 spaces, place 1 block
- Row 50:skip 5 spaces, place 1 block, leave 52 spaces, place 1 block
- Row 51:skip 6 spaces, place 1 block, leave 50 spaces, place 1 block
- Row 52:skip 7 spaces, place 1 block, leave 48 spaces, place 1 block
- Row 53:skip 7 spaces, place 2 blocks, leave 46 spaces, place 2 blocks
- Row 54:skip 8 spaces, place 2 blocks, leave 44 spaces, place 2 blocks
- Row 55:skip 9 spaces, place 2 blocks, leave 42 spaces, place 2 blocks
- Row 56:skip 10 spaces, place 2 blocks, leave 40 spaces, place 2 blocks
- Row 57:skip 11 spaces, place 2 blocks, leave 38 spaces, place 2 blocks
- Row 58:skip 13 spaces, place 1 block, leave 36 spaces, place 1 block
- Row 59:skip 14 spaces, place 2 blocks, leave 32 spaces, place 2 blocks
- Row 60:skip 16 spaces, place 2 blocks, leave 28 spaces, place 2 blocks
- Row 61:skip 17 spaces, place 3 blocks, leave 24 spaces, place 3 blocks
- Row 62:skip 20 spaces, place 2 blocks, leave 20 spaces, place 2 blocks
- Row 63:skip 22 spaces, place 4 blocks, leave 12 spaces, place 4 blocks
- Row 64:skip 26 spaces, place 12 blocks
How the circle blueprint is calculated
Minecraft has no curves — only cubes. A circle blueprint is really a decision for every cell in a square grid: is this cell inside the circle or outside it? CraftShape answers that by testing the center of each cell against the circle boundary. Cells whose centers fall inside are placed; cells whose centers fall outside are left empty.
That single rule is what keeps the result symmetrical. Because the test is measured from the exact middle of the shape, the left half always mirrors the right half and the top always mirrors the bottom — for odd and even diameters alike. The summary panel runs that symmetry check on the finished grid and reports the result.
Hollow circles and wall thickness
A hollow circle is the area between two circles: the diameter you asked for, and a smaller one shrunk by your wall thickness. Every cell inside the outer circle but outside the inner one becomes a block. This is why a thicker wall never leaves gaps in the curve — the band is always continuous.
Building it in game
- Flatten the area first. Uneven ground is the most common reason a circle looks wrong.
- Place the widest row and the widest column first, then fill the four arcs between them.
- Use mirror mode to build one quadrant and copy it — checking a quarter of the shape is much faster than checking all of it.
- Stack the same ring for every layer of height to turn a circle into a tower.
Popular circle sizes
Preconfigured pages with block counts and advice for the sizes builders ask for most:
Frequently asked questions
Related generators
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- Dome GeneratorFlat-based domes from shallow caps to tall cupolas.
- Oval GeneratorEllipses of any width and height, filled or hollow.
- Arch GeneratorSemicircular, pointed, shallow and horseshoe arches.
- Roof GeneratorGable, hip, pyramid, shed and A-frame roof plans.
- Tower GeneratorRound towers with floors, taper and battlements.