Nether Calculator

Convert coordinates between the Overworld and the Nether, and work out how much obsidian a portal frame needs.

Coordinate Converter

Overworld X

Overworld Z

Nether X

Nether Z

Overworld coordinates are always 8× the Nether coordinates. Editing either side updates the other.

Frame Width

Frame Height

Vanilla portals allow a width and height from 4 to 23 blocks each.

Without corners

With corners