Simple Calculator
A simple calculator that can be used via a command and automatically copies the result to your clipboard.
Screenshots
About this Mod
Simple Calculator
Features
Simple Calculator is a lightweight mod that allows you to perform basic calculations directly in-game.
Use the command /calc <equation> to calculate any expression.
The result will be copied to your clipboard and also displayed in the chat.
For equations you can use +, -, *, / and ()
Available Versions
How to Install Simple Calculator 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 (1.21.5).
Install Mod
Open the mod browser in the dashboard and search for "Simple Calculator". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.5
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Simple Calculator 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 (1.21.5). You can switch loaders with one click in the panel.
Is Simple Calculator compatible with fabric?
Simple Calculator officially supports fabric for Minecraft 1.21.5. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Simple Calculator – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Simple Calculator 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.
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Rent Modded Server
Install Simple Calculator with just one click on your server.