Minecraft 123x123 Dome — 18421 Blocks
Get the exact block pattern for a Minecraft 123x123 Dome. 18421 blocks needed — works in both Java and Bedrock editions.
368 blocks
Layer 1
Ø 123Layer 4
Ø 123Layer 7
Ø 123Layer 10
Ø 121Layer 13
Ø 121Layer 16
Ø 119Layer 19
Ø 117Layer 22
Ø 115Layer 25
Ø 113Layer 28
Ø 111Layer 31
Ø 107Layer 34
Ø 103Layer 37
Ø 99Layer 40
Ø 95Layer 43
Ø 89Layer 46
Ø 83Layer 49
Ø 77Layer 52
Ø 67Layer 55
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Layer 58
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Layer 61
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18421 blocks
A 123-block Minecraft Dome uses 18421 blocks.
Key facts
| Diameter | 123 |
| Blocks | 18421 |
| Layers | 62 |
| Height | 62 |
Materials needed
To build this Dome you will need:
| 18421 blocks | 18421 |
| 288 stacks of 64 | 288 |
| about 77 minutes | 77 |
Layers shrink as you go up, so the ground ring uses the most blocks. A center pillar keeps every layer aligned.
How to build it
- Start with the full base circle on the ground, just like a flat circle.
- Stack each next layer with a smaller ring, keeping the same center.
- Follow the blueprint layer grid for the exact ring size of every layer.
- Use slabs or stairs to smooth the curve as it gets steeper.
- Close the top with the smallest ring and fill the center block.
Copy it as /setblock commands
Open the generator and hit Copy /setblock to get every block as a Minecraft command. Add your world coordinates and the whole Dome lines up exactly where you want it to be.
/setblock 0 64 0 minecraft:stone
Builder
Build it block by block: turn on Builder mode in the generator to mark each placement with a click, step with Next and Prev, or press Play to auto-advance.
What to build with it
A 123-block Dome works well for: Mega build — stadium, large temple
Related sizes
Other shapes
Common sizes and what to use them for
- 15Fountain base
- 21Small tower
- 25Pond or garden pond
- 33Tower or big garden feature
- 41Castle tower
- 49Large tower
- 65Huge build — coliseum, dome hall
- 101Mega build — stadium, large temple