How to use the Minecraft Circle Generator
- Choose circle or ellipse. A circle needs one diameter. An ellipse takes a width and a depth.
- Pick a style. Filled gives a disc. Outline gives a single ring of blocks. Thick ring lets you choose how many blocks deep the ring is.
- Read the grid. Each square is a block. Hover to read a position. The numbers along the edge mark every fifth block.
- Build it. Follow the row guide, or copy the grid as text. The block count and stack count tell you how much to gather.
How the pattern is chosen
A block is placed when its centre falls inside the circle. For a circle of diameter n, the centre is the middle of the grid and the radius is n divided by two. Odd diameters have one centre block, and even diameters have a two by two centre. Ellipses use the same rule with a different radius in each direction.
Other generators sometimes use slightly different rounding, so a circle of the same size can differ by a block or two. Either is fine to build. This one is consistent for every size.
Outline or thick ring
Outline keeps every block that touches an empty block along one of its four sides, so the ring is connected with no gaps. A thick ring keeps that many layers of blocks working inward, which suits tower walls, arenas and moats.
Frequently asked questions
What is the largest circle I can make?
Up to 300 blocks across. Beyond about 150 the grid gets small on screen, so use the row guide.
How do I build a circle fast?
Build the top half from the row guide, then mirror it. Circles are symmetric, so one quarter is enough to plan the rest.
Can I make an oval?
Yes. Switch to Ellipse and set the width and depth separately.
How do I build a sphere or dome?
Use the sphere generator on this site, which gives a layer-by-layer plan.
Does it work for Bedrock?
Yes. The pattern is just blocks on a grid, so it is the same in Java and Bedrock.