Tools / Minecraft
Minecraft Circle Generator
Pick a diameter and get a pixel-perfect circle or ellipse - the block pattern for round towers, domes, ponds, and spheres. Outline or filled, with a live block count. Runs in your browser; nothing is uploaded.
Diameter: 15 x 15 Blocks needed: 0
Want this on a real server? Supercraft hosts Minecraft →
How to build a circle in Minecraft
Minecraft blocks are square, so a "circle" is really the best pixel approximation of one. This tool runs the same midpoint-distance math builders use by hand on graph paper, then draws the result. To build it:
- Set the diameter (width). Keep Force circle on for a true circle, or turn it off and set a different height for an ellipse (oval arenas, racetracks, stadium walls).
- Choose outline for a wall/ring (round tower, pond edge) or filled for a solid floor or platform. Watch the block count so you know how much material to gather.
- Place blocks to match the grid, one row at a time. For a sphere, stack circles whose diameter grows to the middle then shrinks; for a dome, use the top half of that stack.
Odd diameters give a clean single-block top, bottom, left, and right; even diameters give a flat two-block edge. Both are "correct" - pick whichever looks right for your build.
Building a round server spawn?
Big circular builds - spawn towers, arenas, domes - are exactly the kind of project a dedicated server is for, so friends can build alongside you and it stays online between sessions. If you need somewhere to run it, Supercraft is one option among many; the tool itself is free and needs no server.