Star Calculator
by Axterlious
Star Calculator is a keyboard-driven calculator for Minecraft, built on Fabric, that works out item counts in stacks of 64 and 16.
What it does
Players open a small in-game window and type expressions with basic arithmetic, parentheses, decimal numbers and the x symbol for multiplication. The result can be read as a plain number or converted into full stacks, so a quantity of materials can be checked before a build or a craft. Pressing Tab switches between the 64-stack and 16-stack modes, and a disabled state turns stack display off.
The screen is kept simple and works without the mouse, which suits players who already keep their hands on the keyboard. Only the client needs the mod, so a server does not have to install it and players can use it on any server or in single-player. It is open source under the MIT License and requires Fabric API for 26.2 and 26.3, the two game versions that have files.
Key features
Basic arithmetic
Addition, subtraction, multiplication and division can be typed in one line and evaluated on the spot.
Parentheses and decimals
Nested parentheses and decimal numbers are supported, so longer expressions can be entered without splitting them up.
Stack conversion
Results can be shown as Minecraft stacks of 64 or 16 items, which helps when counting materials.
Keyboard-first input
The calculator is driven by the keyboard, with Tab used to change the stack mode.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Counting materials for a build
A player who needs a number of blocks can enter the amount in stacks of 64 and read off the total without doing the division by hand.
Checking crafting quantities
Items that come in groups of 16 can be converted to stacks to confirm how many are needed for a recipe.
Who it’s for: Players who gather or craft large quantities of items and want a quick calculator inside the game, without leaving it for an outside app.
How it compares
Star Calculator is client-side only, open source under the MIT License and published for 26.2 and 26.3. CraftCalculator is open source under the MIT License as well, but it is a client and server mod for 26.1.2 – 26.3, so the server must run it too. In Game Calculator is not open source and is under the CC0 1.0 Universal license, with files for 1.21.6 – 26.3 and an environment where the client needs it and the server may skip it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Star Calculator | Fabric | 26.2 – 26.3 | Client-side only | 2026-09-20 |
| CraftCalculator | Fabric | 26.1.2 – 26.3 | Client and server | 2026-09-16 |
| In Game Calculator | Fabric | 1.21.6 – 26.3 | Client required, server optional | 2026-09-16 |
Questions
Does Star Calculator need Fabric API?
Does a server have to install Star Calculator?
Which game versions does Star Calculator support?
In the catalog
Star Calculator is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Axterlious
Similar mods
What the author says
A simple keyboard-driven calculator for Minecraft, made with Fabric. Press Tab to switch between 64-stack, 16-stack, and disabled modes!!
Official listing
- Modrinth page
- modrinth.com/mod/star-calculator
- Owner
- Axterlious
- Published
- 2026-08-02
- Updated on Modrinth
- 2026-09-20
- Facts verified
- 2026-10-15