Just Calculator UI

Added a calculator page to calculate recipe materials.

37 Downloads

forgeutility

Rent Server with this Mod

Screenshots

About this Mod

What can it do?

It helps players quickly calculate required materials for bulk crafting. It provides persistent on-screen material lists, detects items in shulker boxes, supports multiple preset slots and display styles, integrates with JEI to view recipes, and allows key binding customization.

How to use it?

Use a configurable key (default: U) to open the calculator, view a recipe in JEI, and click '+' to auto-import the required materials into the list.

Feel free to include this mod in any modpack — I'd greatly appreciate it. Report any issues on GitHub.

Available Versions

Just Calculator UI 1.1.0release

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6forge

April 12, 2026

Just Calculator UI 1.0.1release

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6forge

April 11, 2026

How to Install Just Calculator UI on Your Server

Order Server

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

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.6).

Install Mod

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

Compatibility

Mod Loaders

forge

Minecraft Versions

1.20.6, 1.20.5, 1.20.4 (+3 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Just Calculator UI server crashes on startup – what to do?

Most common cause: wrong forge 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 (1.20.6). You can switch loaders with one click in the panel.

Is Just Calculator UI compatible with forge?

Just Calculator UI officially supports forge for Minecraft 1.20.6, 1.20.5, 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Just Calculator UI – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Just Calculator UI 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.