PortalCalc
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Automatically calculates the corresponding Nether or Overworld coordinates for your portal with a simple command.
⬇ Download on ModrinthWhat does this Mod do?
The mod adds a new command named CalcPortal. If you type the command, it will automatically calculate the corresponding coords for the Nether side, and if you are in the Nether, it will calculate the corresponding coords for the Overworld.
Why choose this Mod?
Unlike some other mods, this one is not bloated with unwanted stuff. It does what it should, and it is good at that.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as nether-portal-calc-1.0.0.jar — drop this file into the mods folder
- Download size: 15 KB
- Download link checked 7 Oct 2026 — working
These come from our own check of the pack file, not from the source page.