5 block circle in Minecraft (radius 2)
A 5-block-wide circle takes 12 blocks for a 1-block outline and 21 to fill it. Go around each quarter in runs of 3·3. The centre is a single block, because 5 is odd.
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| Diameter | 5 blocks (radius 2 from the centre block) |
| Outline, thin wall (diagonal steps) | 12 |
| Outline, thick wall (no diagonal gaps) | 16 |
| Filled disc | 21 |
| Flat edge on each side | 3 |
| 5-high tower wall | 60 · 60 |
Rule: a block counts when its centre lies inside the circle, the same grid the game uses. Checked 21 Oct 2026.
How to build it
- Mark the centre block. Count 2 blocks out from the centre block in all four directions and mark those four points.
- Place the four flat edges of 3. Centre each flat edge on one of the four points: 1 blocks either side of it.
- Join the edges diagonally. Each flat edge meets the next one with a single diagonal step.
- Repeat for each layer. A straight wall is the same ring on every layer (a 5-high wall takes 60 blocks). A dome or sphere shrinks the ring as it goes up.
All 5 rows, north to south
Each row lists its runs of blocks from west to east; "2-2" means 2 blocks, a gap, then 2 blocks.
- 3
- 1-1
- 1-1
- 1-1
- 3
Nearby sizes
| Diameter | Outline | Filled | Quarter pattern |
|---|---|---|---|
| 5 | 12 | 21 | 3-3 |
| 6 | 16 | 32 | 4-4 |
| 7 | 16 | 37 | 3-1-3 |
| 8 | 20 | 52 | 4-1-4 |
Every size from 5 to 128 in one table · How to build a perfect circle
Questions
How many blocks is a 5 block circle?
12 blocks for a 1-block outline with diagonal steps, 16 for an outline with no diagonal gaps, and 21 for a filled disc.
Should I build 5 or 4?
5 is odd, so the circle has one centre block: doors, beacons and pillars line up with the middle. 4 has a 2×2 centre instead.
How many blocks for a 5 sphere or dome?
A hollow 5 block sphere with a 1-block shell takes 54 blocks; a hollow 5 dome (3 layers, open at the bottom) takes 25. Plan them layer by layer in the sphere generator or the dome generator.
Thin or thick outline?
A thin outline (12 blocks) steps diagonally, so mobs and water can slip through the corners. A thick outline (16 blocks) adds a block at every step, which makes a sealed wall.