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SpeedCrunch – High Precision Freeware Desktop Calculator

Damien Oh 05-01-2009

speedcrunch desktop calculatorAre you looking for a powerful freeware desktop calculator that can take care of all complex mathematical calculations? Look no further, SpeedCrunch is the one for you.


SpeedCrunch is a high precision and powerful freeware desktop calculator for Windows, Mac and Linux. It is easy to use and is loaded with plenty of useful features and functions (as in mathematics functions).

desktop calculator freeware

Useful libraries

SpeedCrunch comes loaded with various libraries that you can use immediately:

Math book – A small library that contains the formula for 2D/3D objects and quadratic equations.

Constants library – If you have difficulties remembering the value for atomic mass or astronomical units, don’t worry, it is all documented in the constants library. This library contains most of the constant values you will ever need.


Functions – provides you with access to frequently used functions such as abs, acos, bin etc.


Ease of use

There are plenty of features that make SpeedCrunch very user-friendly and very easy to use. First, there is the evaluate-as-you-type feature that calculates the result when you are typing the expression. Even before you press Enter, the result may already appear in the status bar.

SpeedCrunch also supports smart correction and automatic completion so you can type and evaluate your mathematical expression quickly and accurately. In the event that you typed the wrong expression, there is the syntax highlighting that highlights the error and prompts you to make the correction.


Big memory bank

For advanced calculation, you will need to use variables to hold calculation results. SpeedCrunch allows you to define as many variables as you want. There are also pre-defined variables such as pi that you can use off- hand.

In term of precision, SpeedCrunch is able to hold up to 50 decimals of precision. When dealing with intense and complex calculation, this high precision ensures that you get less rounding errors in the end.

In addition, SpeedCrunch records all your calculations and place them in its history. Whenever you need to re-enter the same expression, simply load up the history panel and select the one that you entered previously. If you are doing a lot of intense calculations, this is going to be very helpful.

Other features

In access of the above features, SpeedCrunch allows you to save your session so that you can resume from where you stopped the last time. Your history and variables will be intact the next time you load up the session.


An extra feature that plays no part in the mathematical calculations, but is still useful, is the language localization. In fact, SpeedCrunch supports 22 languages and you can switch to your favorite language easily.

SpeedCrunch in Chinese


If you are looking for a desktop calculator to handle complex mathematical calculations, SpeedCrunch would make a good choice. One thing that it is missing is the lack of a graphing ability for people to plot graphs and perform graphical calculations. Other than that, I have no complaints about this app.

Do you know of a similar better app?


Related topics: Calculator, Education Technology, Geeky Science.

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  1. amir
    August 23, 2009 at 8:20 am

    hi why i can't download this file if it is free? I live in the iran thank you frome truble.

  2. FussyGit
    January 9, 2009 at 4:10 am

    You might want to say "a smaller rounding error in the end" or "fewer rounding errors in the end" instead of "less rounding errors in the end".

    Also the above should be "and places them in its history" rather than "and place them in its history"

    Looks like a nice app!

    • Damien Oh
      January 9, 2009 at 10:15 am

      Thanks for correcting the grammar. I will pay more attention to it the next time.

  3. Aibek
    January 9, 2009 at 12:59 am

    Some more online claculators can be found here


  4. Laszlo
    January 6, 2009 at 2:56 pm

    Check out this very simple, free, open source AHK calculator with basic graphics, lits, history, output in different formats...
    You can tune it easily to your needs.

  5. Charles
    January 6, 2009 at 8:41 am

    There's always Pari/GP, which is far more powerful but not as user-friendly. It does have graphing abilities, though:

  6. najaf
    January 5, 2009 at 11:12 am

    i want to try it