ModsFinder

CalcBar

by alex265

CalcBar puts a working calculator inside Minecraft, opened from the game interface, with support for complex expressions.

FabricNeoForgeAll rights reserved1.21.11

What it does

Players type expressions into an in-game calculator bar and read the result on screen. Common operations such as addition, subtraction, multiplication, division and parentheses are handled, so longer formulas can be entered in one line. Trigonometric and square root functions are included as well, which covers the math most builders and redstone players reach for when planning layouts.

The mod supports a set of constants used in common Minecraft calculations, so values tied to game mechanics do not have to be looked up and typed by hand. Results update as the expression is edited. The mod works with Mod Menu, which is optional and only offers a settings screen.

The mod is available on two loaders, and the latest file for each is version 1.0.0, released on 2026-03-07. The first release came out on 2026-03-06. It is not open source: the source code and issue tracker are public, but the mod is released under All rights reserved.

Key features

  1. Standard arithmetic

    Addition, subtraction, multiplication, division and parentheses can be combined in a single expression.

  2. Trigonometric functions

    SIN, COS and TAN are available for angle-based calculations, alongside square roots through SQRT.

  3. Game constants

    Built-in constants cover values that recur in common Minecraft calculations, saving manual lookups.

  4. Live results

    The result updates while the expression is typed, so a formula can be checked before it is used.

  5. Stack conversion

    A quarter stack shortcut, written qs, converts a count into a stack of 16 items.

Compatibility

Latest build for each game version and loader.

1.21.111.0.01.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Optional 1

Mod MenuAdds a mod menu to view the list of mods you have installed.
Optional

Use cases

Who it’s for: Players who plan large builds or redstone designs and want to compute figures inside the game instead of switching to an outside calculator. The mod suits single-player worlds and clients on any server, since it does not need to run on the server.

How it compares

Full comparison

MI-84 Calculator is a Fabric mod for 1.21.1 with a custom license and is client-side only. Calculator is also Fabric-only and client-side, is licensed under the CC0 1.0 Universal license and covers 1.21 – 26.3. In Game Calculator is Fabric, works for 1.21.6 – 26.3, and is client required with the server optional, released under CC0 1.0 Universal.

ModLoadersGame versionsEnvironmentUpdated
CalcBarFabric and NeoForge1.21.11Not published2026-03-07
MI-84 CalculatorFabric1.21.1Client-side only2026-08-05
CalculatorFabric1.21 – 26.3Client-side only2026-10-11
In Game CalculatorFabric1.21.6 – 26.3Client required, server optional2026-09-16

Questions

Which loaders does CalcBar support?

CalcBar is published for Fabric and NeoForge, so either loader can run it on the client.

Does CalcBar need Mod Menu?

No. Mod Menu is an optional dependency that only adds a settings screen, and the calculator works without it.

Does the server need CalcBar installed?

The mod is only needed on the player side for calculations, so a server does not have to run it to host players who use it.

More from alex265

All projects
Time & Weather Changer1.21.6 – 26.3Ping in Tablist1.21 – 26.3Dark Window Title Bar1.21

What the author says

qs = quarter stack = 16 - Supports SIN, COS, TAN, SQRT - Results update while you type
alex265, on the Modrinth page

Official listing

Owner
alex265
Published
2026-03-06
Updated on Modrinth
2026-03-07
Facts verified
2026-10-15
Open on ModrinthCompare