Browse free open source Calculators and projects for Linux below. Use the toggles on the left to filter open source Calculators 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
    Finanx 12c

    Finanx 12c

    Financial Calculator

    The Finanx 12c is a free software that mimics the HP-12C financial calculator. This software was developed for educational purposes. IT'S NOT RECOMMENDED using this calculator for professional calculations. If you find any bugs, please, let me know. Click "Bugs" in the menu bar to report bugs found.
    Downloads: 17 This Week
    Last Update:
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  • 3
    OptionMatrix

    OptionMatrix

    Financial Derivatives Calculator with 171+ Models (Options Calculator)

    A real-time financial derivatives calculator supporting 171+ models from QuantLib, Financial Numerical Recipes in C++ and MetaOptions. Matrices of prices are created with iterating strikes and/or months. A strike control system can produce any strike. A generalized date engine can calculate re-occuring distances to any industry used expiration into the future. Spread engine with spread views. Models Supported: Black-Scholes, Merton-73, Black-76, Roll Geske Whaley, Garman KohlHagen, Jump Diffusion, Quanto, Vasicek Bond Option, Turnbull Wakeman Asian, TimeSwitchOption, Look Barrier, Bachelier, PartialTimeBarrier, GapOption, Extreme Spread Option, Simple Chooser, ComplexChooser, PartialFixedLB, Executive, CashOrNothing, Extendible Writer, OptionsOnOptions, BAWAmericanApprox, BSAmericanApprox, AssetOrNothing, Bisection, BAWbisection, BSbisection, Gfrench, Gcarry, Swapoption, Complex Chooser, Super Share, EquityLinkedFXO, Spread Approximation, BinaryBarrier and more
    Downloads: 7 This Week
    Last Update:
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  • 4
    elcalc

    elcalc

    Simple, Cross-Platform Calculator Made

    Elcalc is a simple, cross-platform calculator, built with Electron. It is fast, intuitive and can be used as an alternative for the default system calculator. It supports basic arithmetic operations.
    Downloads: 25 This Week
    Last Update:
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    RPNCalc

    RPNCalc

    RPNCalc - The command line Reverse Polish Notation (RPN) Calculator

    RPNCalc is the command-line based Reverse Polish Notation (RPN) calculator. RPN calculators make it very simple to do complex calculations, especially if there are parentheses involved. I've created a User Guide (https://frossm.github.io/RPNCalc-UserGuide) to do a better job of explaining how to use RPNCalc than the old readme.md file, which was getting really long. If you have questions, issues, feedback, or ideas, please let me know. You can contact me via the links in the **Introduction** page of the User Guide. ## RPNCalc User Guide: https://frossm.github.io/RPNCalc-UserGuide ##
    Downloads: 16 This Week
    Last Update:
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  • 6
    Getting your first mortgage? No, this isn't spam, its mort! A simple but powerful loan/mortgage calculator that also amortizes.
    Downloads: 6 This Week
    Last Update:
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  • 7

    zero

    Privacy-first offline expense tracker. No cloud. No tracking.

    zero is a privacy-first, fully offline expense tracking app for Android and iOS. Unlike most finance apps, zero does not require accounts, cloud sync, subscriptions, or internet access. All financial data stays locally on your device. There are no ads, no telemetry, and no analytics. zero helps you: • Track daily expenses in a clean timeline • Visualize spending with simple reports • Create unlimited custom categories • Manage lendings and borrowings • Export or delete your data anytime Built with a local-first philosophy, zero gives you full control over your financial data. Your data. Your device. Zero servers. Open source and actively maintained.
    Downloads: 4 This Week
    Last Update:
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  • 8
    Interest(ing) Calculator is useful in calculating Financial Parameters of loans/deposits.Loan/Deposits have four variables.They are, Principal,Interest Rate,Term,Installment.IC helps to calculate any one variable, if you know the other three variables.
    Downloads: 2 This Week
    Last Update:
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  • 9
    A graphing calculator implementation of the Black-Scholes Option Pricing Model, with extensions for both American Style Options and Extreme Value Theory.
    Downloads: 1 This Week
    Last Update:
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  • 10
    Calctool is the graphical calculator application that was in the OpenWindows Deskset of the Solaris 8 operating system. Sun Microsystems Inc. have kindly given permission to release it. It incorporates a multiple precision arithmetic packages based o
    Downloads: 1 This Week
    Last Update:
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  • 11
    Programmable RPN and Algebric calculator. Written with Kylix3 OpenEdition for Linux. Mathematic - Trigonometric - Calendar - Financial functions. Very easy to use. Italian and English language. More details on my home page: http://mcz.altervista.org
    Downloads: 0 This Week
    Last Update:
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  • 12
    Arrear_Pension_Calculator

    Arrear_Pension_Calculator

    Simple app for calculating arrear pension amount of a given period.

    A simple Arrear Pension Calculator app written in python with GUI specifically Govt. employees (Central & State). This application calculates arrear (Due - Drawn) / overdrawn / recovery of pension between any given periods. This app is not associated with the Govt. This app is for informational purpose only. This project is open source under GNU public license v3.0
    Downloads: 0 This Week
    Last Update:
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  • 13
    The program simulates a desktop calculator, complete with stripe print of the calculations. Allows you to perform all the operations that we are normally accustomed to dealing with that type of peripherals.
    Downloads: 0 This Week
    Last Update:
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  • 14
    Cashderivatives.org Pricing Calculator
    Cashderivatives.org Pricing Calculator (CDPC) is a calculator for financial instruments. The project is now discontinued. The project had reached alpha development status, when it was decided to not continue with the project.
    Downloads: 0 This Week
    Last Update:
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  • 15
    The Film Stock Calculator is an application for calculating the film stock footage and cost for a film.
    Downloads: 0 This Week
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  • 16

    Financial Calculator

    Calculates simple or compounding interest

    Simple financial calculator that will give you the future value for a deposit made using simple or compounding interest. Uses native charting features of Visual Studio to depict principal, interest earned, and future value calculations.
    Downloads: 0 This Week
    Last Update:
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  • 17
    JCalc is GUI calculator written entirely in Java. It can be run cross-platform on any OS with a Java Virtual Machine. It shall be portable, stable, and efficient.
    Downloads: 0 This Week
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  • 18
    A Perl CGI script which calculates a matrix of loan payments in a table for the purpose of determining which interest rate and term will best fit a buyer's needs. Working on linking the payment values to a ammort schedule.
    Downloads: 0 This Week
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  • 19
    Scientific Java Calculator for cell-phones and MIDP devices
    Downloads: 0 This Week
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  • 20
    Money Trakker is a simple account calculator to keep finances between a few people or household.
    Downloads: 0 This Week
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  • 21
    An RPN calculator in Java with a minimalistic interface, designed to be stylish, complete and useful.
    Downloads: 0 This Week
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  • 22

    ObjectLab Kit

    We MOVED to GITHUB!

    http://github.com/Appendium/objectlabkit A set of modules to handle common financial functions. The first module is Date Calculator which handles holidays and weekends. A set of rules are implemented to deal with days falling on a holiday: Forward, Backward, Modified Forward, Modified Backward New FX Rate Calculators
    Downloads: 0 This Week
    Last Update:
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  • 23
    This is a standalone HTML/JavaScript application with which a manager can get an estimate of the costs involved with the deploymnent of 1) a conventional network, 2) a network with OSS based servers and 3) a network with OSS based servers and desktops.
    Downloads: 0 This Week
    Last Update:
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  • 24
    QExchange is a Qt4 currency exchange calculator. Main features are daily and historical currency conversion, chart view of historical rates trend, exchange rates network update from European Central Bank. It runs under Linux, Win32 and MacOS X.
    Downloads: 0 This Week
    Last Update:
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  • 25
    QExchange is a Qt4 currency exchange calculator. Main features are daily and historical currency conversion, chart view of historical rates trend, exchange rates network update from European Central Bank. It runs under Linux, Win32 and MacOS X.
    Downloads: 0 This Week
    Last Update:
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