Minecraft Circle Generator
Building a round tower, dome, or arena? Pick a diameter from 3 to 64 blocks and get a pixel-perfect block chart you can copy straight into your build — thin outline, thick double-wall, or fully filled, plus an oval mode and the exact block count for the layer.
15-block circle — thin outline
40 blocks
The orange dot marks the true center block — place your first block there.
How to read the chart layer by layer
The grid above is a top-down view of one horizontal layer. Each colored square is one block. The outline is made of short straight runs — count the squares in each run, place that many blocks in the game, then step one block over and repeat. That staircase rhythm (for example “4 across, 1 up, 2 across, 1 up”) is the same in every quadrant, so you only need to memorize a quarter of the circle.
A few tips that make the build go faster: mark the center first with a temporary block (odd diameters have a true center block, shown as the orange dot in the chart). Then build the north and east cardinal points at the radius distance, lay one quadrant of the outline between them, and mirror it to the other three quadrants. For a tower, build the full ring once, then simply stack identical rings — the block count shown is per layer, so a 20-block-tall tower uses 20 times that number.
Even and odd diameters behave differently at the middle: an odd circle (say 13) has a single center block and a single widest row, while an even circle (say 12) centers on the seam between four blocks and has two identical widest rows. Neither is wrong — pick odd when something sits at the exact center, even when the build straddles a border.
More build tools
Traveling between dimensions? The Nether portal calculator converts Overworld coordinates to Nether coordinates so your portals link correctly. For loot tables and random build choices, try the random number generator or the dice roller.
Frequently asked questions
Minecraft is a trademark of Mojang Synergies AB / Microsoft. This is an unofficial fan tool and is not affiliated with, endorsed by, or associated with Mojang or Microsoft. No game assets are used.