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Nether Portal Calculator
Convert Minecraft coordinates between the Overworld and the Nether to line up your portals.
Minecraft Circle Generator
Generate a block-by-block pixel circle for Minecraft builds, with block counts per row.
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How to use this calculator
Enter your values. The result updates as you type; press Calculate to confirm and jump to the result on mobile. Use Share to send the calculator with your result.
How the circle is drawn
A block is part of the circle if its center lies within radius (diameter ÷ 2) of the circle’s center. The outline keeps only blocks that touch the outside. Odd diameters have a single center block, which makes it easier to line up with doors and paths; even diameters center on the corner between four blocks.
Use the per-row counts to place blocks layer by layer. For spheres, build several circles of changing diameter.
Frequently asked questions
Odd or even diameter?
Odd diameters (like 15) give a center block; even ones (like 16) don’t.
About this tool
- Written by
- [Author: to be assigned]
- Reviewed by
- Formula tests passed · human review pending
- Last updated
- 31 Oct 2026
See our methodology and editorial policy. Think something’s off? Report an error with this tool.
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