100 block circle in Minecraft
A 100-block-wide circle takes 280 blocks for a 1-block outline and 7,860 to fill it. Go around each quarter in runs of 14·5·4·2·3·2·2·1·2·1·2·1·1·1·1·1·1·1·1·2·1·2·1·2·2·3·2·4·5·14. The centre is a 2×2 square, because 100 is even.
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| Diameter | 100 blocks (2×2 centre) |
| Outline, thin wall (diagonal steps) | 280 |
| Outline, thick wall (no diagonal gaps) | 396 |
| Filled disc | 7,860 |
| Flat edge on each side | 14 |
| 5-high tower wall | 1,400 · 21×64 + 56 |
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 2×2 centre. Count 49 blocks out past the 2×2 centre in all four directions and mark those four points.
- Place the four flat edges of 14. Centre each flat edge on one of the four points: 7 blocks either side of the centre line.
- Fill each corner with 5·4·2·3·2·2·1·2·1·2·1·1·1·1·1·1·1·1·2·1·2·1·2·2·3·2·4·5. After each run, step one block diagonally inward and place the next run. Do the same in all four corners.
- Repeat for each layer. A straight wall is the same ring on every layer (a 5-high wall takes 1,400 blocks). A dome or sphere shrinks the ring as it goes up.
All 100 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.
- 14
- 5-5
- 4-4
- 2-2
- 3-3
- 2-2
- 2-2
- 1-1
- 2-2
- 1-1
- 2-2
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 1-1
- 2-2
- 1-1
- 2-2
- 1-1
- 2-2
- 2-2
- 3-3
- 2-2
- 4-4
- 5-5
- 14
Nearby sizes
| Diameter | Outline | Filled | Quarter pattern |
|---|---|---|---|
| 97 | 272 | 7,393 | 13-5-4-3-2-2-2-1-2-1-2-1-1-1-1-1-1-1-2-1-2-1-2-2-2-3-4-5-13 |
| 98 | 276 | 7,556 | 14-5-3-3-3-2-1-2-2-1-1-2-1-1-1-1-1-2-1-1-2-2-1-2-3-3-3-5-14 |
| 99 | 280 | 7,705 | 15-5-3-3-2-2-2-2-1-2-1-1-1-1-2-1-1-1-1-1-2-1-2-2-2-2-3-3-5-15 |
| 100 | 280 | 7,860 | 14-5-4-2-3-2-2-1-2-1-2-1-1-1-1-1-1-1-1-2-1-2-1-2-2-3-2-4-5-14 |
| 101 | 284 | 8,021 | 15-5-3-3-2-2-2-2-2-1-1-2-1-1-1-1-1-1-2-1-1-2-2-2-2-2-3-3-5-15 |
| 102 | 288 | 8,184 | 14-5-4-3-2-2-2-2-1-2-1-1-1-2-1-1-2-1-1-1-2-1-2-2-2-2-3-4-5-14 |
| 103 | 288 | 8,341 | 15-5-3-3-3-2-2-1-2-1-2-1-1-1-1-1-1-1-1-1-2-1-2-1-2-2-3-3-3-5-15 |
Every size from 5 to 128 in one table · How to build a perfect circle
Questions
How many blocks is a 100 block circle?
280 blocks for a 1-block outline with diagonal steps, 396 for an outline with no diagonal gaps, and 7,860 for a filled disc.
Should I build 100 or 101?
100 is even, so the centre is a 2×2 square: good for a 2-wide door or a 2×2 pillar. 101 has a single centre block instead.
How many blocks for a 100 sphere or dome?
A hollow 100 block sphere with a 1-block shell takes 25,776 blocks; a hollow 100 dome (50 layers, open at the bottom) takes 12,888. Plan them layer by layer in the sphere generator or the dome generator.
Thin or thick outline?
A thin outline (280 blocks) steps diagonally, so mobs and water can slip through the corners. A thick outline (396 blocks) adds a block at every step, which makes a sealed wall.