
Simple Calculator
adds an in-game command to calculate math expressions
About this Mod
SimpleCalculator
(!) NO LONGER MAINTAINED (!)
A fully client-sided mod that adds a nifty calculator into the game as a command.
Powered by mXparser by Mariusz Gromada
Commands
/calc <expression>: Evauluates expression/calc history: Shows the recent history/calc history clear: Clears all history
GUI
Alternatively, SimpleCalculator also comes with a GUI which pops up at the press of a keybind.

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 (1.16.5).
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
1.16.5
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 (1.16.5). You can switch loaders with one click in the panel.
Is Simple Calculator compatible with fabric?
Simple Calculator officially supports fabric for Minecraft 1.16.5. 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.
Similar Mods
Rent Modded Server
Install Simple Calculator with just one click on your server.