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Nether Portal Coords

by Vanilla Tweaks

Calculates and displays the corresponding Nether coordinates for your current Overworld position. Helps with portal linking.

Overview

Nether Portal Coords is a lightweight Vanilla Tweaks utility that takes your live Overworld position, divides X and Z by eight, and shows the matching Nether coordinates on the action bar. This removes the mental math normally needed to line up two portals so they link to the same partner. A trigger command lets you switch the readout on or off whenever you want a clean screen. It works in either direction of travel so you can plan a build site from whichever dimension you are standing in.

Ideal for survival and SMP players who build large Nether highway networks and want reliable portal linking without external calculators. It comes from Vanilla Tweaks, sits in the Utility category, and is rated a simple, drop-in pack to run. Everything happens through vanilla data pack functions, so no mod loader such as Fabric or Forge is required to use it on Minecraft 1.20 through 1.21.4.

Category
Utility
Complexity
Simple
Install Method
World & Server
Popularity
Popular

Features

How It Works

Under the hood, Nether Portal Coords relies on plain data pack mechanics rather than any client mod. Here is what happens in-game once it is loaded:

  1. 1A repeating function reads your position and divides X and Z by eight each tick.
  2. 2The computed Nether coordinates are pushed to the action bar with a tellraw-style display.
  3. 3A scoreboard trigger objective toggles the readout so any player can enable or disable it.
  4. 4Y height passes through unchanged because the 8:1 ratio applies only to horizontal axes.

Supported Versions

1.201.20.11.20.41.211.21.4

Compatibility

May conflict with other action bar packs.

  • May overlap with other packs that write to the action bar, since both fight for the same display line.
  • Pairs cleanly with map and waypoint datapacks that do not occupy the action bar.
  • Multiplayer safe because the toggle is per player through a scoreboard trigger.

Nether Portal Coords is a pure data pack and does not ship a resource pack, so it changes server-side behaviour without altering textures, models or sounds on the client.

Tags

nethercoordinatesportalsnavigation

How to Install

Nether Portal Coords installs as a standard Java Edition data pack and runs on both singleplayer worlds and multiplayer servers. Recent 1.21 releases bumped the data pack format, so keep the pack's pack.mcmeta in step with your server version.

  1. 1.Download the Nether Portal Coords pack as a .zip and keep it zipped.
  2. 2.Open the target world folder — a singleplayer save under .minecraft/saves, or the world folder on your server.
  3. 3.Drop the .zip into that world's datapacks folder, creating the folder if it does not exist.
  4. 4.Load the world (or run /reload if it is already open) and run /datapack list to confirm it is enabled.

The pack is built for Minecraft 1.20 through 1.21.4, so it loads on vanilla Java without Fabric, Forge or any other mod loader. Drop the pack into your world datapacks folder, run reload, then use the toggle trigger and the coordinate readout appears on the action bar immediately.

View full install guide

Frequently Asked Questions

Which Minecraft versions does Nether Portal Coords support?

It supports Java Edition 1.20, 1.20.1, 1.20.4, 1.21, and 1.21.4.

Do I need any mods to run this pack?

No. It is a vanilla data pack and runs on an unmodified Java client or server with no Fabric or Forge.

How do I turn the coordinate display on or off?

Run the toggle trigger command included with the pack, and the action bar readout switches state for your player.

Why does the Y coordinate stay the same?

The 8:1 portal ratio only affects horizontal distance, so X and Z are divided by eight while Y is left untouched.

Will this help my portals link to the right partner?

Yes. Building your Nether portal near the displayed coordinates keeps both portals inside each other linking range.

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