Minecraft Circle Size Chart

How many blocks a circle needs at each diameter, for a one-block outline and for a filled disc.

Every number below is counted from the pattern the Minecraft circle generator produces, not estimated from a formula. Other tools may use a different rounding rule and give slightly different totals, so use the counts from the generator you are building from.

What the columns mean

• Diameter is the width of the circle in blocks, and radius is half of that.
• Outline counts the blocks in a ring one block thick. It is the amount you need for one layer of a wall or tower.
• Filled counts every block in the disc, for floors and platforms.
• Flat edge is the longest straight run of blocks at the top (and, by symmetry, the bottom, left and right) of the circle.
• Centre tells you whether the middle is a single block (odd diameters) or a 2×2 square (even diameters).

A tower or cylinder is the outline repeated for each layer, so multiply the outline count by the height. For other thicknesses, open the generator and use the ring thickness setting.