Alternatives to Windows Calculator for Windows with Open Source License

  • SpeedCrunch

    SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited...

    • It is simply, fast and functional, any problems with formulas. Good bye caculator of windows 10. Guest • Mar 2017 • 4 agrees and 0 disagrees Disagree   Agree
    • It's a terminal based calculator. Features a good interface for inputting slightly longer calculations. Allows editing the input text if you make errors. Offline available, free, pleasing to the eye and customizable. Guest • Jul 2019 • 1 agrees and 0 disagrees Disagree   Agree
    • It is like a good old copybook where you can write all formulas you need in "natural" way. Guest • Feb 2017 • 1 agrees and 0 disagrees Disagree   Agree

    Free Open Source Mac Windows Linux PortableApps.com

    SpeedCrunch icon
  • Giac/Xcas

    Giac/Xcas is a free computer algebra system for Windows, Mac OS X and Linux/Unix (license GPL3, for commercial dual-license contact us).

    Free Open Source Mac Windows Linux

    Giac/Xcas icon
  • XCALC

    XCALC is my little RPN calculator completely free to use, and still downloadable. XCALC is now a DEAD project. No work has been done on this project since 2012, and...

    • Discontinued
      XCALC is now a DEAD project per homepage, but it is still downloadable.

    Free Open Source Windows Linux

    XCALC icon
  • Caligator

    A kickass, open-source calculator that lets you do calculations and unit conversions naturally, with features like: - weight conversion - length conversion -...

    Free Open Source Mac Windows Linux

    Caligator icon
  • GraphCalc

    GraphCalc is an all-in-one solution to everything from everyday arithmetic to statistical analysis, from betas to Booleans, from cubes to calculus, from decimals to...

    • Discontinued
      The project was abandoned. Last version, 4.0.1, released on November 24, 2003, can be still downloaded from the official website.

    Free Open Source Windows Linux

    GraphCalc icon
  • Kalq

    Calculator software try too hard to imitate the real thing. They end up big and clunky and their limitations are carried on. Kalq is a user experience experiment to...

    Free Open Source Windows

    Kalq icon
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  • TTCalc

    TTCalc is an open source bignum mathematical calculator. It features arithmetical functions, trigonometric functions, inverse trigonometric functions, hyperbolic...

    Free Open Source Windows

    TTCalc icon
  • JustBrowsing Calculator

    Calculator web-app for JustBrowsing project. Basic 4 function calculator plus square root and exponent functions. Supports keyboard shortcuts and made to resemble a...

    Free Open Source Mac Windows Linux Web Chrome OS ... Self-Hosted JustBrowsing

    JustBrowsing Calculator icon

Platforms

Desktop

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