16 block circle in Minecraft
A 16-block-wide circle takes 44 blocks for a 1-block outline and 208 to fill it. Go around each quarter in runs of 6·2·1·2·6. The centre is a 2×2 square, because 16 is even.
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| Diameter | 16 blocks (2×2 centre) |
| Outline, thin wall (diagonal steps) | 44 |
| Outline, thick wall (no diagonal gaps) | 60 |
| Filled disc | 208 |
| Flat edge on each side | 6 |
| 5-high tower wall | 220 · 3×64 + 28 |
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 7 blocks out past the 2×2 centre in all four directions and mark those four points.
- Place the four flat edges of 6. Centre each flat edge on one of the four points: 3 blocks either side of the centre line.
- Fill each corner with 2·1·2. 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 220 blocks). A dome or sphere shrinks the ring as it goes up.
All 16 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.
- 6
- 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
- 2-2
- 6
Nearby sizes
| Diameter | Outline | Filled | Quarter pattern |
|---|---|---|---|
| 13 | 36 | 137 | 5-2-2-5 |
| 14 | 36 | 156 | 6-1-1-1-6 |
| 15 | 40 | 177 | 5-2-1-2-5 |
| 16 | 44 | 208 | 6-2-1-2-6 |
| 17 | 48 | 225 | 5-2-2-1-2-5 |
| 18 | 48 | 256 | 6-2-1-1-2-6 |
| 19 | 52 | 293 | 7-2-1-1-2-7 |
Every size from 5 to 128 in one table · How to build a perfect circle
Questions
How many blocks is a 16 block circle?
44 blocks for a 1-block outline with diagonal steps, 60 for an outline with no diagonal gaps, and 208 for a filled disc.
Should I build 16 or 17?
16 is even, so the centre is a 2×2 square: good for a 2-wide door or a 2×2 pillar. 17 has a single centre block instead.
How many blocks for a 16 sphere or dome?
A hollow 16 block sphere with a 1-block shell takes 632 blocks; a hollow 16 dome (8 layers, open at the bottom) takes 316. Plan them layer by layer in the sphere generator or the dome generator.
Thin or thick outline?
A thin outline (44 blocks) steps diagonally, so mobs and water can slip through the corners. A thick outline (60 blocks) adds a block at every step, which makes a sealed wall.