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

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  • 1
    Windows Calculator

    Windows Calculator

    A simple yet powerful calculator that ships with Windows

    Calculator is the open source version of the Microsoft Windows Calculator application. It is a modern Windows app written in C++ and C#, offering standard, scientific, and programmer modes, unit/currency conversion, date calculations, and history/memory operations. It ships preinstalled with Windows and is actively developed on GitHub. Standard Calculator functionality, which offers basic operations and evaluates commands immediately as they are entered. Scientific Calculator functionality, which offers expanded operations and evaluates commands using the order of operations. Programmer Calculator functionality, which offers common mathematical operations for developers, including conversion between common bases.
    Downloads: 100 This Week
    Last Update:
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  • 2
    Calcpad

    Calcpad

    A free software for mathematical and engineering calculations

    Calcpad helps engineers to create clear and traceable calculation notes. It supports real and complex numbers, phasors, units of measurement, custom variables and functions, vectors and matrices, numerical methods, function plotting, conditional execution, iterations, etc. Results are collected into professional looking Html reports for viewing and printing. You can also export them to .docx (MS Word) and .pdf files. You can also create dynamic vector drawings and animations to visualize your data. After installation, you will find a lot of examples for solving different mathematical, mechanical and structural/civil engineering problems in your documents folder. If you like Calcpad, you can donate ♥ the project on GitHub and help for its development: https://github.com/sponsors/Proektsof
    Downloads: 34 This Week
    Last Update:
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  • 3
    RPNcalculator
    Nice looking calculator using Reverse Polish Notation (RPN) written for Windows. It supports DEC, HEX, BIN, OCT numbers, GRAD, RAD and DEG.
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    Downloads: 9 This Week
    Last Update:
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  • 4
    IP Subnet Calculator
    Administration of large networks could be a very time-consuming work. So this program should represent a comfortable solution for calculating subnets in IPv4-networks. First fo all it is designed for Windows but also executable under Linux/Mono.
    Downloads: 17 This Week
    Last Update:
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  • 5

    MC34063 Universal Calculator

    A calculation tool for the MC34063

    If you ever worked with the MC34063 Switching Controller, you know what a pain it is to calculate all the part values. This tool is an universal tool to help you with this process. You can calculate any standard application, such as step-up, step-down, inverting and step-up-down. PS: I would be happy about any (positive xD) reviews as well as any bugreports, comments or feature requests that you might have!
    Downloads: 7 This Week
    Last Update:
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  • 6

    CalcSubnet

    IP subnet calculator

    Simple classfull subnet calculator.
    Downloads: 6 This Week
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  • 7
    Hash Calculator

    Hash Calculator

    Simple Hash Calculator

    This program will allow you to manually type, or browse for a file on your system. You will then be able to generate a MD5, SHA256, or SHA512 hash digest of this file. This program requires no installation and is intended to be a simple, lightweight program. This is also my first open source project!
    Downloads: 3 This Week
    Last Update:
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  • 8
    Forex Assistant

    Forex Assistant

    Manage accounts, analyze trades, track strategies & stats , News & Cal

    Forex Assistant is a comprehensive Windows desktop application designed to support forex traders in every aspect of their trading journey. From essential trading calculators and market insights to powerful account and trade management, it brings everything you need into one intuitive platform. 🔑 Main Features 🧮 Calculator Tools Profit/Loss Calculator Currency Converter Position Size Calculator Pips Calculator Margin Calculator 🌍 Market Insights Live Market News Economic Calendar 📊 Account Manager Add multiple trading accounts with balance and custom descriptions. Track current balance, profit/loss, and drawdown (daily and total). Add and manage positions manually with full details: entry price, stop loss, take profit, volume, PNL, and notes. Add notes for every trade: describe the strategy used, whether the trade was emotional or technical. Import historical trades directly from MetaTrader HTML reports. 📈 Trade Analysis & Insights
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    Downloads: 5 This Week
    Last Update:
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  • 9
    A powerfull tool to work with math functions. At this stage of progress it's draw 2D graphs and 3D graphs of any function. Also have very easy to use calculator which can calculate complicate expressions.
    Downloads: 5 This Week
    Last Update:
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  • 10

    Ballistic Calculator

    Open Source Ballistic Calculator in C#

    !!! This project is currently CLOSED. There is a new version of API available under LGPL license at https://github.com/gehtsoft-usa/BallisticCalculator1 There is a new version of application in progress (ported to net framework 5.0) https://github.com/nikolaygekht/ballistic.calculator.app Ballisitic Calculator based on JBM's implementation 3-degree of freedom model, ported to C#, improved to support metric system and extended by some math from Litz's "Applied Ballistic" book. Calculator displays ballistic tables, graphs, comparison graph and reticle images. The application is free to use under GNU license
    Downloads: 4 This Week
    Last Update:
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  • 11
    MTF Calculator calculates the Modulation Transfer Function (MTF) of an edge image stored in DICOM format and allows the contents to be copied to the clipboard or saved to a Comma-Separated Values (CSV) file.
    Downloads: 2 This Week
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  • 12
    Texas Holdem Calculator
    A simple Texas Holdem calculator for Windows Mobile 5/6, Windows Phone 7, that helps calculating hand and pot odds.
    Downloads: 2 This Week
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  • 13
    Tibi's Mathematics Suite

    Tibi's Mathematics Suite

    A suite of useful mathematical applications.

    The Tibi's Mathematics Suite is a package of various mathematical applications. Included in the package are: a scientific calculator, a graphing calculator, a matrix calculator, and a factorizator. Requirements: .NET Framework 4.0
    Downloads: 3 This Week
    Last Update:
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  • 14
    BinaryCrypt

    BinaryCrypt

    Binary Conversion Calculator

    With BinaryCrypt, you can convert between regular text, binary, hexadecimal, octal decimal and decimal. You can convert only decimal (as of right now) to any base up to base 64. You can also save your converted text to a file or open a converted text file to decrypt the message, and perform basic arithmetic in binary. The git repo for the C# code is located at: https://github.com/m1r4g3/BinaryCrypt-.Net
    Downloads: 2 This Week
    Last Update:
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  • 15

    LM555 Timer Calculator

    A Graphical Tool To Calculate Timer Components

    Many of us use LM555 timer chips to generate clocks, tones for model trains, and all sort of other uses. Calculating the values of the resistors and capacitor in the timing chain, along with the duty cycle for astable operation is a bit tedious on a calculator so I built this small forms based tool to make it easier. It even has the graphic of the chip and the pin numbers to make it easy to hook things up.
    Downloads: 2 This Week
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  • 16
    A calculator written in C#.NET 3.5 that aims to be simple and usable. Future plans include functionality above and beyond that of the standard windows calculator. (Requires the .NET 3.5 framework)
    Downloads: 2 This Week
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  • 17
    CGPA SGPA Calculator

    CGPA SGPA Calculator

    A basic calculator for calculating CGPA and SGPA

    CGPA-SGPA is a basically a calculator, designed and developed to calculate ones SGPA (Semester Grade Point Average) or CGPA (Cumulative Grade Point Average). It is based on latest UGC(IN) grade and its equivalent grade point. Minimum requirements : MS .NET Framework 4.0
    Downloads: 1 This Week
    Last Update:
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  • 18

    Calcex Math Parser

    Mathematical expression parser and evaluator for .NET

    Moved to https://github.com/alxnull/calcex Calcex is a simple math parser for .NET to evaluate mathematical expressions which is developed in C#. It supports many common mathematical operations and functions and allows the user to add custom functions and variables. It is possible to evaluate double or decimal values for high precision. Calcex also includes functions for converting numbers from decimal to binary or other bases. The project includes a simple calculator and decimal-binary converter to show the functions of Calcex.
    Downloads: 1 This Week
    Last Update:
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  • 19
    Console Grapher

    Console Grapher

    Graphing calculator within the Windows desktop console

    Direct link to source code: http://sourceforge.net/projects/consolegrapher/files/Source/ConsoleGrapher_Source.zip/download . Just what you needed: a simple, down-to-earth two dimensional graphing calculator inside the elegance of the Windows console! This is a program that I wrote as a method for mastering the C# programming language. Though the features are not what you would expect from a program written and sold by a corporation, you may find it an entertaining tool Also notice that no installation is required, meaning it will not put annoying icons on your desktop and start menu, and you are free to delete it at will. If you know coding, be sure to check out the source code, which is in the form of a zipped-up Visual Studio solution. If you would like to import some of the functions into your own project, the code is free to be used.
    Downloads: 1 This Week
    Last Update:
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  • 20
    Drilling Calculator, Calculate all your drilling numerical with least effort and most accuracy! (for student purpose only, not professional usage). Application developed on C#. (c) 2011, Chiradeep Gupta; University of Petroleum and Energy Studies.
    Downloads: 1 This Week
    Last Update:
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  • 21
    Planetary Interaction calculator for Eve Online. Allows to calculate which resources at which planets should be gathered in order to manufacture high level products.
    Downloads: 1 This Week
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  • 22

    RCLcalculators

    RCL, a simulator for Texas Instrument calculators from the 70's.

    Calculators became available in the early 70's, soon after the integrates circuits, and several companies were competing with each other for a share of this market. Texas Instruments was one of the bigger companies producing calculators. With RCL it is possible to recreate the TI calculators, strating with the Ti59e, with 960 program steps and a persistant memory (a combination of the the Ti58C and the Ti59). RCL offers any person interested in the ancient ones in calculators (more specific: TI calculators) an option to have your old calculator under your control again. Looking for user manuals? go to http://www.rskey.org/CMS/index.php/the-library/12 (The site owner does a great job at preserving the history and the documentation of calculators of the period.) RCL is targetting developers interested in applying the Von Neumann architecture and attributed grammars and developers with a need to do complex calculations in their applciacation.
    Downloads: 1 This Week
    Last Update:
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  • 23
    A look angle calculator program. Includes precise calculations with optional magnetic variation, updatable satellite listings, and geographical data from USGS database. Input by city, zipcode, or coordinates.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Subnet Calculator

    Subnet Calculator

    Subnet Calculator

    Very simple subnet calculator written in C#. Designed to be lightweight and portable for quick daily usage. Feel free to contact me at orphamiel@yahoo.com if you wish to contribute.
    Downloads: 1 This Week
    Last Update:
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  • 25
    A scientific graphing calculator written in C#.NET. This is a no longer graded educational project. This project has been abandoned. See the latest news post for details.
    Downloads: 0 This Week
    Last Update:
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