MineMath
by Oiha
With MineMath, players can type a calculation in a small in-game window, opened by a key, instead of leaving the game for an outside calculator.
What it does
The mod adds a calculator screen that opens with a chosen key, N by default, and accepts basic arithmetic typed in the game. Because the window sits inside Minecraft, a player does not tab out to another program while playing. Input can come from the physical keyboard, so numbers and operators are entered quickly rather than clicked one at a time.
MineMath is client-side only, so the server does not need it and players join without installing anything. It is published for Fabric, Forge and NeoForge across 23 release versions, 1.18 – 1.21.8. The code is open source under the MIT License, and the source code and issue tracker are linked publicly.
Key features
In-game calculator
A calculator window performs basic math operations without leaving the game.
Keyboard input
Numbers and operators can be typed on the physical keyboard for faster entry.
Adjustable open key
The key that opens the calculator can be chosen in the controls settings.
Clean interface
The calculator screen uses a simple layout meant to stay out of the way of play.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x9 of 9 versions with builds
1.20.x6 of 6 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Checking numbers mid-session
A player can work out crafting quantities, resource totals or coordinate offsets without pausing or switching windows.
Who it’s for: Players who often need a quick sum while building, mining or managing inventories, and who would rather keep the calculation inside the game window.
How it compares
Calculator Mod is a Fabric-only, client-side mod for 1.20.6 – 1.21, under the GNU General Public License v3.0 only and open source. Chat-ulator is a Fabric, Forge and NeoForge mod for 1.19 – 26.3, client-side only, under the MIT License and not open source. Craftulator covers Fabric, Forge and NeoForge for 1.20.1 – 26.3 and requires the client and server environment, so it must also be installed on servers, unlike MineMath.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| MineMath | Fabric, Forge and NeoForge | 1.18 – 1.21.8 | Client-side only | 2025-07-22 |
| Calculator Mod | Fabric | 1.20.6 – 1.21 | Client-side only | 2024-06-15 |
| Chat-ulator | Fabric, Forge and NeoForge | 1.19 – 26.3 | Client-side only | 2026-09-24 |
| Craftulator | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client and server | 2026-09-16 |
Questions
Does MineMath need to be installed on the server?
Which loaders does MineMath support?
Can the open key be changed?
In the catalog
MineMath is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from Oiha
Similar mods
What the author says
MineMath is a simple and intuitive in-game calculator for Minecraft. MineMath lets you perform calculations directly inside the game — no need to tab out! Simple... Just press N (or your chosen key) to open the calculator in-game!
Official listing
- Modrinth page
- modrinth.com/mod/minemath
- Owner
- Oiha
- Published
- 2023-09-05
- Updated on Modrinth
- 2025-07-22
- Facts verified
- 2026-10-15