A curated list of resources related to calculators!

Is your project mentioned in this list? See mentioned.md!

- HiPER Scientific Calculator - Advanced scientific calculator, with lots of features, for example result history and themes.
- Calculator ++ - Scientific calculator with modern, Google Material Design interface.
- Google Calculator - Official calculator from Google.
- Samsung Calculator - New, official calculator from Samsung.
- Photomath (Camera Calculator) - Calculate math problems using camera.
- MyScript Calculator (Drawing Calculator) - Perform mathematical operations naturally using your handwriting.
- RealCalc - Scientific calculator with realistic interface.
- a41cv - Excellent emulation of the classic HP-41CV calculator.
- Wabbitemu - Emulate Texas Instruments graphing calculators on your device.
- Droid48 (src), Droid48 (app) - Android port of x48, the awesome HP48GX/SX emulator

- HiPER Scientific Calculator (Windows Edition) - Advanced scientific calculator with lots of features.
- in-line calculator (AutoHotkey Calculator) - Interface-less calculator for Windows that lets you do basic math without having to leave the line you're typing on.
- Windows 10 Calculator by Microsoft - Official Microsoft calculator for Windows 10.
- Old Windows 7/8 Calculator in Windows 10 - Opportunity to use old Windows 7/8 calculator in Windows 10.
- GraphCal - Professional calculator with unique features.

- Numi - Beautiful calculator with great features, including unit & time zone conversion.
- Soulver - Do basic math operations using modern, clean interface without buttons.
- Calculator + ƒ - Powerful, extensible calculator for the Mac.

- Galculator - GTK 2 / GTK 3 based scientific calculator.
- KCalc - Calculator which offers many more mathematical functions than meet the eye on a first glance.
- x48 - Emulate the HP48GX/SX, one of the best engineering calculators ever.

- Simple Electron Calculator - Basic, cross-platform calculator made with Electron.
- elcalc - Calculator with simple & beautiful interface.
- Material Design Calculator - Cross-platform material design calculator.
- SpeedCrunch - High-precision scientific calculator featuring a fast, keyboard-driven user interface.
- Liri Calculator - Cross-platform, Material Design calculator with all the features you would expect from a modern calculator.
- mdlt - Command-line utility for quick math.
- calc - Simple, fast and intuitive command-line calculator written in Go.
- J# Calculator Barebones - Very simple calculator written in J#. Made as program for J# newcomers to extend and learn from.

- Wolfram|Alpha - Computational knowledge engine.
- Web 2.0 Scientific Calculator - Online calculator, that provides basic and advanced mathematical functions useful for school or college.
- Calculator.js - Open-Source, web calculator with beautiful Google Material Design interface.
- Notepad Calculator - Calculator with user-friendly, unique notepad interface.
- BeanCounter - Fast web calculator, that will show you representation of your math problem.
- Calculator.net - Huge collection of various calculators.

- Calculators Subreddit - The place to share tips, tricks, and games regarding graphing or high powered calculators.
- Mathematics Stack Exchange - Great place to ask questions about math.
- MathOverflow - Question & Answer site for professional mathematicians.

- Simple calculator app using React & Node.js - Really easy tutorial for beginners.
- Calculator in C++ using switch...case - How to create a basic calculator in C++ using switch...case.
- Simple calculator in Python - Create a simple calculator with Python.

- Arthur Benjamin - Faster than a calculator
- Tricks for your calculator
- How to use scientific calculator?
- Scott Flansburg, the human calculator

To the extent possible under law, Antoni Kepinski has waived all copyright and related or neighboring rights to this work.