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Minecraft Nether Coordinate Calculator

Convert Overworld coordinates to the Nether and back at the 8:1 ratio - live, both directions. Type into either side and the other updates, so you can build linked portals that connect exactly where you want. Runs in your browser.

Overworld

↔

Nether

Build the matching portal at:

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How Nether portal linking works

The Nether is compressed 8:1 horizontally: one block there covers eight Overworld blocks. To make two portals link reliably:

  1. Build and light your first portal, and note its coordinates (press F3 on Java, or check the map/coords on Bedrock).
  2. If it is in the Overworld, divide X and Z by 8 to get the Nether target. If it is in the Nether, multiply X and Z by 8 to get the Overworld target. Y stays the same.
  3. Travel to that target and build a second portal within a few blocks of it. Lighting a portal at the calculated spot stops the game from linking to a far-away portal or generating a stray one.

Tip: the Nether roof is at Y=128, so a very high Overworld portal can map above the playable Nether - drop the Y a bit when that happens. Planning a big linked network or a Nether highway is a classic server project; the tool is free and the math is the same on Java and Bedrock.

Frequently asked questions

What is the Nether coordinate ratio in Minecraft?

1 block in the Nether equals 8 blocks in the Overworld on the X and Z axes. So to find the matching Nether spot, divide your Overworld X and Z by 8. The Y (height) is the same in both dimensions.

How do I link two Nether portals so they connect correctly?

Build the first portal, note its Overworld coordinates, divide X and Z by 8 to get the target Nether coordinates, and build the second portal there (within a few blocks). Building portals at the calculated coordinates stops them from linking to the wrong portal or spawning a stray one.

Does the Y coordinate change between the Overworld and Nether?

No. Only X and Z are divided or multiplied by 8. Y stays the same number, though the Nether roof is at Y=128, so very high Overworld portals may need adjusting.

Does this work on Java and Bedrock?

Yes. The 8:1 horizontal ratio is the same on Java and Bedrock. The calculation runs entirely in your browser.

This tool: v1.6 · updated 3 Aug 2026