Calculator-Mochi_753
The author built this one for Minecraft 1.21–1.21.11 on NeoForge. On other versions it may install and then do nothing.
Calculator Mod
A simple client-side chat calculator.
Overview
Calculator Mod allows you to evaluate mathematical expressions directly from the chat.
Simply start your message with @ followed by a formula, and the result will be displayed in your chat.
Features:
- Evaluate arithmetic expressions using double precision.
- Optional inline or multi-line result display (configurable).
- Client-side only: does not require server installation.
- Configurable warnings and display options.
Usage
Type a calculation in the chat starting with @
Configuration
The mod provides a client-side configuration file (config/calculator-client.toml) with the following options:
| Option | Description | Default |
|---|---|---|
suppressWarning |
Suppress a warning on login about possible rounding errors | false |
resultInline |
Display calculation results in the same line as input | false |
Note: This calculator uses double precision. Results may contain rounding errors.
License
Calculator Mod: MIT License
Third-party libraries:
- exp4j — Apache License 2.0
(Source code included with license header preserved)
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.5, 1.21.8
- 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 CurseForge — 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 Calculator-1.1.0-1.21.jar — drop this file into the mods folder
- Download size: 201 KB
- Download link checked 12 Sept 2026 — working
These come from our own check of the pack file, not from the source page.