How to Use the Pixel Circle Generator
Turn a diameter into a block-by-block circle, ellipse or sphere you can copy in game, with the exact block count and a downloadable reference image.
Quick Steps
- 1Pick a shape — circle, ellipse or sphere
- 2Set the diameter (and height, for an ellipse)
- 3Choose filled or an outline
- 4Read the grid row by row, or step through a sphere layer by layer
Example Use Cases
- Round towers, silos and fountains
- Domes and spheres for builds and map art
- Circular walls, arenas and borders
Tips
Use an outline for walls and towers, filled for floors and platforms
Odd diameters have a single centre block; even ones have a 2x2 centre
For a dome, build only the top half of a sphere
Frequently Asked Questions
How do you build a circle in Minecraft?
Because the world is made of cubes, a circle is approximated by filling the blocks whose centre falls inside the radius. Pick a diameter, choose filled or outline, and place blocks to match the grid row by row. This generator does that maths for you and shows the exact pattern and block count.
What is the difference between a filled and outline circle?
A filled circle is a solid disc — every block inside the radius. An outline is just the ring, one block thick, which is what you want for towers, fountains or round walls. The thick outline keeps a two-block ring so the curve still reads cleanly at large diameters.
How do you build a sphere or dome?
A sphere is a stack of circles that grow toward the middle and shrink toward the top and bottom. Switch to sphere mode and step through the layers with the slider — each layer is the circle to build at that height. For a dome, build only the top half.
How many blocks does a circle need?
It depends on the diameter and whether it is filled or an outline. A filled circle is roughly pi times the radius squared; an outline is far fewer. The generator shows the exact count for your settings, and for spheres it shows both the per-layer and total counts.
What is the largest circle this can make?
Up to 128 blocks across, which covers everything from a small fountain to a large arena or dome. Above that the pattern is hard to read on screen, and most builds use far smaller radii.