Browse free open source C Calculators for Windows and projects below. Use the toggles on the left to filter open source C Calculators for Windows by OS, license, language, programming language, and project status.

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  • 1
    Open Tax Solver

    Open Tax Solver

    Calculates income tax form entries, helps do your taxes.

    OTS is a safe, secure, easy-to-use program for calculating Tax Return Form entries, and determining your tax-owed or refund-due, for Federal or State personal income taxes. Includes updated versions for US 1040, Schedules A, B, C, D, and for several states. OTS provides both graphical and textual interfaces for quickly filing out your tax forms. --- Best way to download the correct version for your platform -- go to the OTS WEBSITE: =====> https://opentaxsolver.sourceforge.net/
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    Downloads: 436 This Week
    Last Update:
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  • 2

    TILP - TI Linking Program

    TI graphing calculators <-> computer communication software

    TILP (formerly GtkTiLink) can transfer data between Texas Instruments graphing calculators and a computer. It works with all link cables (parallel, serial, Black/Gray/Silver/Direct Link) and it supports the TI-Z80 series (73..86), the TI-eZ80 series (83PCE, 84+CE), the TI-68k series (89, 92, 92+, V200, 89T) and the Nspire series (Nspire Clickpad / Touchpad / CX, both CAS and non-CAS). The project is now managed on Github, https://github.com/debrouxl/tilp_and_gfm . It uses the libti* libraries, https://github.com/debrouxl/tilibs . Install script for *nix: https://github.com/debrouxl/tilp_and_gfm/blob/master/tilp/trunk/build/scripts/install_tilp.sh
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    Downloads: 416 This Week
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  • 3
    'atlc' is a CAD package used for analysing and desiging electrical transmission lines of arbitrary cross section. Also for the design of directonal couplers. Some parts are CPU intensive, so multiple CPUs are supported.
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    Downloads: 14 This Week
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  • 4
    fHash

    fHash

    A files hash calculator for Windows and macOS.

    An open source files hash calculator for Windows and macOS. * MD5, SHA1, SHA256 and SHA512. * Drag & drop. * Integrated with context menu in Explorer/Finder. * Support Windows 7 and later. * Support macOS 13 and later, with universal binary. * Support Dark Mode. * English and Simplified Chinese UI. The icon "希" is from hash in Chinese "哈希".
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    Downloads: 18 This Week
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    Advanced Trigonometry Calculator

    Advanced Trigonometry Calculator

    Precision Trigonometry: Advanced Calculator for Complex Math

    Advanced Trigonometry Calculator is equipped with a user-friendly interface that allows for easy input of problems and instant computation. Professionals such as engineers who need to perform advanced trigonometric calculations in their work will find this tool extremely useful. ATC Online Alpha: https://advantrigoncalc.sourceforge.io/atc/ More info by clicking below: https://advantrigoncalc.sourceforge.io/ Advanced Trigonometry Calculator was only and always only developed by the Portuguese Renato Alexandre dos Santos Freitas. Also author of poems, reflections and thoughts published on the platform https://www.pensador.com/autor/renato_alexandre_dos_santos_freitas/ ATC is Made in Portugal. He was born in Coimbra on July 6, 1991. He has a degree in Electrical and Telecommunications Engineering and began developing ATC at the beginning of his undergraduate studies. He works for Miclearning, Lda since April 2020. Providing services to Multimac Hito Innovation.
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    Downloads: 9 This Week
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  • 6

    calc: C-style arbitrary precision system

    Calc: arbitrary precision C-like arithmetic & calculator

    Calc is arbitrary precision C-like arithmetic system that is a calculator, an algorithm prototyper and mathematical research tool. Calc comes with a rich set of builtin mathematical and programmatic functions.
    Downloads: 3 This Week
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  • 7
    A simple command to convert calendar dates to julian dates. Quite useful in timing situations where you need elapsed time between dates. Also useful for astronomy applications.
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    Downloads: 4 This Week
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  • 8

    Zwicker s Loudness Calculation SW +Tool

    Zwicker's Loudness Calculation (ISO532B) Tools

    Zwicker's Loudness Calculation (ISO532B) Tools. The project includes a loudness calculation program based on Zwicker's Method, and a WAV file analyzer generating data files for loudness calculation. Documentation and test files are also provided.
    Downloads: 3 This Week
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  • 9

    cgtkcalc

    A simple calculator for complex number calculation.

    A simple scientific calculator for complex number calculation. It requires the GTK+ toolkit.
    Downloads: 3 This Week
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    rechne.exe

    rechne.exe

    Command-line calculator and libray.

    Easy-to-use command-line calculator for basic and scientific calculations.
    Downloads: 1 This Week
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  • 11
    Advanced Arithmetic Calculator

    Advanced Arithmetic Calculator

    One of the best simple arithmetic calculator!

    Can solve, "+,-,/,*,^" operations. Can solve complex expressions with parentheses "(,),[,],{,}". Has the possible of use previous response when enter "res". Can solve expressions with negative values, example "_2+5". Has "pi" and "e" natural constants.
    Downloads: 0 This Week
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  • 12
    A very simple console application written in C that can calculate the area of ​​a shape you select and, upon your request, round the result.
    Downloads: 0 This Week
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  • 13
    Console, multisystem Body Mass Index Calculator. It is running on Linux and Windows. Messages are in french, but I can translate them in english or spanish. Langage is C (or event C++).
    Downloads: 0 This Week
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  • 14
    Command Line Calculator
    System independent command line calculator written in C (C99 standard). Expression is first converted to Reverse Polish Notation and then evaluated.
    Downloads: 0 This Week
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  • 15
    Evalute mathematic expression in console. Released many functions and operations.
    Downloads: 0 This Week
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  • 16
    With this application you will know, instantly the time difference between two dates in the form of date, days, hours, minutes, and seconds!
    Downloads: 0 This Week
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  • 17
    DioXygene is a project of a new calculator using a motorola processor. It will have a multitasking operating system and a support of RPL, C and ASM language directly on calc.
    Downloads: 0 This Week
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  • 18
    Engineering Calculator Suite
    Downloads: 0 This Week
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  • 19
    Equalculator is an equation calculator. It is currently in the "pre-alpha" stage of development, so don't expect it to do miracles. You type in your equation, it will ask you for the variables and Voila!, it gives you the answer.
    Downloads: 0 This Week
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  • 20
    HP Emulator is an emulator for the HP 48GX calculator.
    Downloads: 0 This Week
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  • 21
    HexTool is a simple yet effective calculator/tool; invaluable for people who work with Hex and Binary. Now you can convert between Hex, Binary and Decimal on the fly. No install needed: just unzip and run it!
    Downloads: 0 This Week
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  • 22

    KnerbelRechner

    Clean,basic and simple calculator

    Downloads: 0 This Week
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  • 23
    LMP is a command line "calculator" comparable to the GNU command expr, but more flexible. It supports floating point and complex numbers and even higher level operations like differenziation and integration.
    Downloads: 0 This Week
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  • 24
    MLS6(BG9AMG's the Maidenhead's Locator System Calculator 6th) is a free calculator program, which can convert Maidenhead's Locator System Grid Square into a coordinate(Lat/Lon) and gernerate a GoogleEarth kml file, distri- buted under GPL.
    Downloads: 0 This Week
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  • 25
    Numerical Systems Calculator

    Numerical Systems Calculator

    An arithmetic calculator for the most popular numerical systems.

    Have you ever imagined not having to do math to convert the various number systems and still make arithmetic calculations with different numerical systems in the same expression? That's what makes this application. You can mix decimal, binary, octal and hexadecimal arithmetic operations using the symbols "+, -, *, /,^,". You can put "e" to use Napier's constant, put "pi" to use pi constant and put a "!" in the of numerical system form to factorization. So let's start doing the math in an instant with this application and save the rest of the time for more useful things of interest.
    Downloads: 0 This Week
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