Minecraft Ellipse Generator
Set an independent width and height (1 to 256 blocks each) to generate a filled or outline Minecraft ellipse, with the full block grid, a row-by-row width table, and the total block count.
1 to 256.
1 to 256.
Total blocks
192
Blocks per quadrant
48
approximate, by symmetry
| Row | Width (blocks) |
|---|---|
| 0 | 8 |
| 1 | 14 |
| 2 | 16 |
| 3 | 18 |
| 4 | 20 |
| 5 | 20 |
| 6 | 20 |
| 7 | 20 |
| 8 | 18 |
| 9 | 16 |
| 10 | 14 |
| 11 | 8 |
How it's calculated
With horizontal radius rx = width / 2 and vertical radius rz = height / 2, a block at column x, row z is included when it falls inside the ellipse equation:
(x − centerX)² / rx² + (z − centerZ)² / rz² ≤ 1
That's the same digital-disk method the Circle Generator uses, generalized to two independent radii instead of one.
Worked example: 20 × 12
A filled 20-wide, 12-tall ellipse uses 192 blocks. The same footprint as a two-block-thick outline wall uses 92 blocks. Enter 20 and 12 into the generator above to reproduce this exact grid.
Frequently Asked Questions
How is an ellipse generator different from a circle generator?
A circle locks width and height to the same diameter. This tool sets them independently, so a 20-wide, 12-tall ellipse stretches the same digital-disk test along two different radii instead of one -- useful for an oval arena footprint, a stretched dome base, or a build that has to fit a rectangular plot.
Why does my ellipse look a little lumpy at a small size?
Any curve rendered on a square block grid has to round to whole blocks, and that rounding is most visible at small sizes where a single block is a large fraction of the shape. Ellipses stretched far from a circle (very wide and short, or very tall and narrow) show this more than near-circular ones -- go up in size, or toward a rounder aspect ratio, if the steps bother you.
Can I generate a perfectly round shape with this tool?
Yes -- set width and height to the same number and it's identical to the Circle Generator's output; that's the same underlying function with width and height forced equal.
What does the wall thickness control do in outline mode?
It sets how many blocks deep the ring wall is, measured inward from the outer edge. A thickness of 1 gives a single-block-wide line; higher values give a thicker wall, useful for something you'll actually need to walk along or build on top of.
Circle In Blocks is a set of fan-made building tools, not affiliated with Mojang or Microsoft; Minecraft is a trademark of Mojang Studios. Grids are generated from the geometry described above, not pulled from the game itself -- see the Terms.