Awesome Calculators 
A curated list of resources related to calculators!
Is your project mentioned in this list? See mentioned.md!
Calculators
GitHub repository ↗ synced 2026/8/9
Awesome Calculators
Calculator apps:
Android
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.
RealCalc
Scientific calculator with realistic interface.
a41cv
Excellent emulation of the classic [HP-41CV](http://www.hpmuseum.org/hp41.htm) calculator.
Wabbitemu
Emulate Texas Instruments graphing calculators on your device.
Scalar
Powerful math engine and math scripting language, that combines the simplicity of standard calculators with the flexibility of scripting.
- Droid48 (src), Droid48 (app) - Android port of x48, the awesome HP48GX/SX emulator
Windows
Windows Calculator
Simple yet powerful calculator that ships with Windows
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.
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.
Mac
Numi
Beautiful calculator with great features, including unit & time zone conversion.
Soulver 3
Smart notepad with a built-in calculator.
Calculator + ƒ
Powerful, extensible calculator for the Mac.
Linux
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.
Cross-Platform
Parsify Desktop
Extendable calculator for the 21st Century.
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.
Qalculate!
Cross-platform scientific calculator including unit/currency converters.
Web
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.
Calculator.net
Huge collection of various calculators.
Clcalc.net
Open-Source command-line style arbitrary precision calculator with mathematical, scientific, programming functions and more.
Desmos
Online set of tools related to math, including a set of calculators, exams and more.
Geogebra
Free online math tools for graphing, geometry, 3D, and more. Includes interactive graphical calculator.
Resources
Communities
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.
Tutorials
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.