Simply Calculator

A lightweight, draggable calculator for Factorio. Perfect for quick arithmetic while you're busy optimizing your factory.

Features

Draggable window – click and drag the title bar to move the calculator anywhere on the screen.
Phone-style button layout – large, easy-to-press buttons arranged like a standard calculator app.
Basic arithmetic operations – addition (+), subtraction (-), multiplication (×), and division (÷).
Calculation history – the last few calculations are displayed above the input. Clear the history with one click.
Clear display – the current expression is shown in a smaller field, and the current value (or result) is shown in a large, highlighted field.
Backspace – delete the last character with the ⌫ button.
Hotkey toggle – press C (customizable in the controls settings) to open or close the calculator window.

Press C (default key) to open the calculator.
Click the buttons to enter numbers and operators.
Press = to compute the result.
Use C to clear everything and start over.
The history panel shows previous calculations – click Clear All to remove them.

This mod is released under the MIT license. See the LICENSE file for details.