Minecraft Sphere Generator
Type a diameter and the tool builds a sphere layer by layer, with a numbered grid for each slice, the blocks in every layer and the total. Choose solid or hollow, or set a different width, height and depth for an ellipsoid. Turn the 3D preview to check the shape.
How to build a sphere in Minecraft
- 1
Set the diameter
Type how many blocks across the sphere is. The layer count equals the diameter, and the total block count updates at once.
- 2
Choose solid or hollow
Hollow keeps a one-block shell and saves most of the blocks. Solid fills the inside, which you only need for statues and terrain.
- 3
Step through the layers
Move the layer slider from layer 1 at the bottom to the top. Each layer is a circle on the grid, with its row counts and block total.
- 4
Build or copy the command
Build the layers one at a time, or copy the WorldEdit //hsphere or //sphere command for odd sizes. The STL download is for 3D printing.
Minecraft sphere block counts
Layers and block counts for common sizes, worked out by the same code as the tool.
| 5 blocks across | 5 layers. Solid 81 blocks, hollow 54. |
|---|---|
| 7 blocks across | 7 layers. Solid 179 blocks, hollow 98. |
| 9 blocks across | 9 layers. Solid 389 blocks, hollow 186. |
| 11 blocks across | 11 layers. Solid 739 blocks, hollow 278. |
| 15 blocks across | 15 layers. Solid 1,791 blocks, hollow 530. |
| 21 blocks across | 21 layers. Solid 4,945 blocks, hollow 1,082. |
| 31 blocks across | 31 layers. Solid 15,515 blocks, hollow 2,382. |
How a sphere becomes layers
Minecraft has no round blocks, so a sphere is built as a stack of flat circles. The middle layer is the widest circle, and the circles above and below it get smaller until the top and bottom layers, which are only a few blocks. The generator slices the sphere at the centre of each layer and keeps every block whose centre is inside the sphere, so the layers match each other and the shape is symmetric in all directions.
Use the layer slider to see each slice. The grid for a layer is the same kind of circle you would build with the circle generator, and the row counts tell you how many blocks go in each row. Because the sphere is symmetric, layer 3 matches layer 3 from the top, so you only need to work out half of the layers.
Hollow or solid?
Almost every sphere in a build should be hollow. A hollow shell keeps every block that touches the outside and removes the inside, so you can use it as a dome roof, a glass globe, a planet with a cave, or a room. The block counts in the chart show the difference: a solid sphere grows with the cube of its size, while the shell only grows with the square.
Pick solid when you want a solid planet or a statue head, or when you will carve the inside yourself. Cutting a hollow sphere by hand from a solid one wastes time, so choose the right option before you start. For a sphere that is wider than it is tall, turn off the perfect sphere option and enter a width, height and depth. The result is an ellipsoid, such as an egg or a flattened planet.
Building a large sphere without mistakes
Start from the middle layer, because it is the biggest circle and sets the size. Build it, then build the layer above and below, and work outward. Put a pillar through the centre to keep your place, and remove it at the end. For odd diameters the pillar is a single block; for even ones it is a 2 by 2 column.
The 3D preview can show the sphere up to a chosen layer, which is a handy check while you build. Each layer count is listed under the grid so you can tick them off. For very large spheres the WorldEdit command is quicker, but only odd diameters are possible with it, so the grid remains the reference for even ones.
Need a 3D model for something else?
Turn a text prompt or a photo into a 3D model with AI, or turn a Minecraft skin into a printable model. The shape tools on this page stay free.
More Minecraft shape tools
Minecraft sphere questions
Minecraft is a trademark of its owners and is named here only to describe what the shapes are for. Not affiliated with Mojang or Microsoft.