Minecraft Round Tower Generator
Enter the outer diameter, height and wall thickness to get the floor plan, the blocks in each ring and the total for the tower.
The plan above is the last valid one, dimmed. Fix the input to update it.
- Total blocks
- blocks
- Blocks in one layer
- blocks
- Stacks to gather
- stacks
- Full stacks of 64
- stacks
- Left over
- blocks
Row readout
How the ring is worked out
The footprint is the filled circle of the outer diameter, using the same rule as the circle generator: a block is in when its centre is within half the diameter of the middle of the grid. With a wall thickness t, the inside is a smaller concentric circle of diameter D − 2t, and the ring is the footprint minus that inner circle. Every layer of the tower is the same ring, so the total is the ring count times the height.
If the wall is so thick that the inner diameter reaches zero, nothing is hollow and the tower is treated as solid; the page says so when that happens.
Examples you can check: diameter 5 with a wall of 1 is a ring of 12 blocks, so a height of 4 takes 48. Diameter 5 filled is 21 blocks a layer, 84 for a height of 4. Diameter 3, wall 1, height 2 is 8 a layer, 16 in total.
Windows and doors
The count is for a plain wall. Windows, doors and floors are layout choices, so subtract or add blocks for them yourself once you have the total.
Most placeable blocks stack to 64, and some items differ (Minecraft Wiki). To roof the tower, see the dome generator; to convert the total to chests, use the stack calculator.
Questions
Is wall thickness 1 the same as the thick outline on the circle generator?
Yes. The thick outline there removes a concentric disc two blocks narrower, which is exactly a wall of 1 here.
Not an official Minecraft product, and not affiliated with Mojang or Microsoft. See also the circle chart.