Web Analytics Made Easy - Statcounter
Server Tools

Tools / Minecraft

Minecraft Sphere Generator

Build a pixel-perfect sphere or dome block by block. The tool slices the sphere into horizontal layers and draws each one - step through with the slider and build from the bottom up. Hollow or filled, with per-layer and total block counts. Runs in your browser.

Diameter: 15 This layer: 0 Total blocks: 0

Layer 8 / 15

Want this on a real server? Supercraft hosts Minecraft →

How to build a sphere or dome in Minecraft

  1. Set the diameter. Leave Hollow on for a normal build (just the shell); turn it off for a solid ball.
  2. Use the slider to step through layers from bottom to top. Each layer is a flat circle - place blocks to match it, then move up one and repeat.
  3. For a dome, build only from the middle layer upward (or downward). For a full sphere, build every layer.

Each layer is exactly the circle our Minecraft circle generator would draw at that slice's width, so the two tools agree block for block. Bigger spheres need a lot of material - watch the total count before you start mining.

Building something big on a server?

Domes, planetariums, and giant spheres are multi-session, multi-builder projects - the kind a dedicated server is made for. The tool is free and needs no account; if you need somewhere to host the build, Supercraft is one option among many.

Frequently asked questions

How do I build a sphere in Minecraft?

A Minecraft sphere is a stack of circles whose diameter grows toward the middle and shrinks again. This tool slices the sphere into horizontal layers and draws each one as a block grid - build it layer by layer from the bottom up, matching each slice.

How do I make a dome instead of a full sphere?

A dome is the top (or bottom) half of a sphere. Generate the sphere, then build only the layers from the equator upward. The layer slider lets you step through and stop at the middle.

What is the difference between hollow and filled?

Hollow gives you just the shell - the surface of the sphere or dome - which is what you almost always want for a build. Filled gives a solid ball of blocks. The block count updates for both so you know how much material to gather.

Does it work on Java and Bedrock?

Yes. It is pure geometry, identical on Java and Bedrock and every version, and runs entirely in your browser.

This tool: v1.10 · updated 18 Sep 2026