ChatCalculator

Calculate simple maths from ingame chat.

3.0K Downloads

fabricforgeutility

Rent Server with this Mod

Screenshots

Sample calculation and usage in ingame chat

About this Mod

ChatCalculator

ChatCalculator is a minecraft mod that enables you to enter a mathematical formula into the chat and get it calculated ingame - without the need to leave the game!

Usage

Simply type in your term, prefixed by an equals sign and press enter. The result will be sent to your chat only, your formula will not be broadcasted server wide, if in a multiplayer session.

=(5+3)*7

This will produce the following output:

Result of entering =(5+3)*7 into the chat

Want to share a calculation with your friends on the server? Prefix your formula with @= and the result will be send to every player on the server!

@=(3^4)+9

This will produce the following output:

Result of entering =(3^4)+9 into the chat

Prefixing your chat message with double-equals (==) will allow you to send chat messages that start with a single equals sign.

Please note - your regular chat messages can't start with == (and @= in multiplayer) if you install this mod.

Source code / contribution

The source code is available on GitHub, so feel free to contribute!

https://github.com/RicoBrase/ChatCalculator

This project can also be found on:

Project page on Modrinth

Project page on CurseForge

Available Versions

ChatCalculator - Forge - 1.6.1release

MC 1.20.1forge

March 25, 2026

ChatCalculator - Fabric - 1.6.1release

MC 1.20.1fabric

March 25, 2026

ChatCalculator - Forge - 1.6.0release

MC 1.20.1forge

March 2, 2024

ChatCalculator - Fabric - v1.6.0release

MC 1.20.1fabric

March 2, 2024

How to Install ChatCalculator on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).

Install Mod

Open the mod browser in the dashboard and search for "ChatCalculator". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforge

Minecraft Versions

1.20.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

ChatCalculator server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.

Is ChatCalculator compatible with fabric and forge?

ChatCalculator officially supports fabric, forge for Minecraft 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with ChatCalculator – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if ChatCalculator consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.