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

  • MyQ Print Management Software Icon
    MyQ Print Management Software

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  • 1
    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: 15 This Week
    Last Update:
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  • 2
    A tool for Spellcrafters and their customers playing Mythic Entertainment's MMPORG, Dark Age of Camelot
    Downloads: 26 This Week
    Last Update:
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  • 3
    Financial Calculator

    Financial Calculator

    Windows 11 only — includes 16 sections with text and visual reports.

    Take control of your finances with Financial Calculator 7.8, a professional yet easy-to-use desktop tool built for precise, everyday financial calculations. From planning loans and estimating taxes to generating invoices and creating QR codes, this all-in-one software offers 16 specialized sections that make your daily financial and business tasks faster, clearer, and more accurate. Whether you’re a student, small business owner, or finance professional, Financial Calculator brings professional-grade precision to your desktop — no installation required. Perform calculations for Bank, Barcode, Building, Buy & Sell, Commodity, Dividing Money, Inflation, Interest, Internet Usage, Invoice, Loan, Password, Phone, QR Code, Stock Market, and Tax. Unlock the full version with a small cryptocurrency payment (as low as $0.01).
    Downloads: 13 This Week
    Last Update:
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  • 4
    Financial Calculator

    Financial Calculator

    Windows 11 only — includes 16 sections with text and visual reports.

    Take control of your finances with Financial Calculator 7.8, a professional yet easy-to-use desktop tool built for precise, everyday financial calculations. From planning loans and estimating taxes to generating invoices and creating QR codes, this all-in-one software offers 16 specialized sections that make your daily financial and business tasks faster, clearer, and more accurate. Whether you’re a student, small business owner, or finance professional, Financial Calculator brings professional-grade precision to your desktop — no installation required. Perform calculations for Bank, Barcode, Building, Buy & Sell, Commodity, Dividing Money, Inflation, Interest, Internet Usage, Invoice, Loan, Password, Phone, QR Code, Stock Market, and Tax. Unlock the full version with a small cryptocurrency payment (as low as $0.01).
    Downloads: 10 This Week
    Last Update:
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  • 5
    Error Propagation Calculator

    Error Propagation Calculator

    Easily propagate measurement errors through mathematical operations.

    Error Propagation Calculator is essentially a cross-platform GUI front-end for the Python Uncertainties library that does not require knowledge of Python to use. Simply point and click to enter values and errors, input your expression and press compute. The program evaluates native Python code, but the user does not need to know the syntax as common operators are provided as buttons, similar to a scientific calculator. -Evaluate expressions with as much as 26 different variable and error pairs. -Copy output to the system clipboard by simply double clicking the output field. -Cross-platform: Works on Windows, Linux, and Mac. All calculations are dependent on the uncertainties package (Uncertainties: a Python package for calculations with uncertainties, Eric O. LEBIGOT, http://pythonhosted.org/uncertainties/)
    Downloads: 2 This Week
    Last Update:
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  • 6
    Time Calculator

    Time Calculator

    Calculator GUI+CLI, but for time intervals

    Does simple math of two time values in the format MM:DD:YY. This allows adding/subtracting one duration with another without having to do any extra math to convert to/from decimal.
    Downloads: 3 This Week
    Last Update:
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  • 7
    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: 4 This Week
    Last Update:
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  • 8
    microstrip-antenna-calculator

    microstrip-antenna-calculator

    A microstrip patch antenna calculator

    This tool can calculate rectangular, circular, and triangular patch of antenna dimensions Support me by clicking the star in my Github account https://github.com/fadhlurrahmann/microstrip-antenna-calculator
    Downloads: 2 This Week
    Last Update:
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  • 9
    rpCalc is a simple RPN (Reverse Polish Notation) calculator.
    Downloads: 3 This Week
    Last Update:
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  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

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  • 10
    BMI Calculator app

    BMI Calculator app

    Desktop application to calculate the Body Mass Index (BMI)

    Enter your weight in kg and height in centimetres to calculate your Body Mass Index to stay fit physically and healthy! The BMI is displayed in different colors such as, 🟪 Purple - Very severely underweight 🟦 Blue - Underweight 🟩 Green - Healthy 🟨 Yellow - Overweight 🟧 Orange - Obese 🟥 Red - Extremely obese Download BMI Calculator today
    Downloads: 2 This Week
    Last Update:
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  • 11
    FreqLength

    FreqLength

    Wavelength Calculator

    FreqLength is a simple wavelength calculator that takes a given frequency as input and spits out various wavelength values for that frequency (full wave, half wave, etc.) If you'd like to donate there's several ways to do so: PayPal: https://paypal.me/gerowen Bitcoin (BTC): bc1q86c5j7wvf6cw78tf8x3szxy5gnxg4gj8mw4sy2 Monero (XMR): 42ho3m9tJsobZwQDsFTk92ENdWAYk2zL8Qp42m7pKmfWE7jzei7Fwrs87MMXUTCVifjZZiStt3E7c5tmYa9qNxAf3MbY7rD LiberaPay: https://liberapay.com/gerowen
    Downloads: 2 This Week
    Last Update:
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  • 12
    A simple calculator written in Python and uses Tkinter for GUI.
    Downloads: 2 This Week
    Last Update:
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  • 13
    PaCal
    ProbAbilistic CALculator - a package for computing with probability distributions
    Downloads: 2 This Week
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  • 14
    Python Advanced Scientific Calculator

    Python Advanced Scientific Calculator

    Really, it is the title. By an 11 year old kid...

    What this is, is an ongoing indie project for making a calculator. Well, it has more functions then your average calculator... Simple as that. There is no readme yet, but in the program, type features. Sorry, can't figure out formatting...
    Downloads: 2 This Week
    Last Update:
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  • 15
    Python Calculator

    Python Calculator

    My own project

    Made like in one day, using PyQT5, QT Designer, and PyInstaller
    Downloads: 2 This Week
    Last Update:
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  • 16
    A python-based calculator that uses the Sabine, Norris-Eyring and Fitzroy formulae to calculate the RT60 time of a room with given specifications. Material list from SAE Institute reference.
    Downloads: 2 This Week
    Last Update:
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  • 17
    pdd

    pdd

    Tiny date, time diff calculator

    There are times you want to check how old you are (in years, months, days) or how long you need to wait for the next flash sale... pdd (python3 date diff) is a small cmdline utility to calculate date and time difference. If no program arguments are specified it shows the current date, time and timezone.
    Downloads: 2 This Week
    Last Update:
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  • 18
    timecalc is a simple cli reverse-polish time calculator with dc-like synthax
    Downloads: 2 This Week
    Last Update:
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  • 19
    D20 Calculator is a graphical roller for a d20 based RPG. The program recognizes commonly used expressions such as "3d8+4", rolls, totals, and displays the results in a detailed, yet easy to read format.
    Downloads: 1 This Week
    Last Update:
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  • 20
    ELOcalc is a small GUI/command-line calculator designed to calculate ELO scores (for, e.g., chess).
    Downloads: 1 This Week
    Last Update:
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  • 21
    A simple IPv4 Address Calculator. It's a free Python module. It's also a core part of the IPeek-GUI wrapper.
    Downloads: 1 This Week
    Last Update:
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  • 22
    This is a GUI wrapper for IPeek module (Python IPv4 Address Calculator). This little application can help with day-to-day IP address calculations.
    Downloads: 1 This Week
    Last Update:
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  • 23
    PsiNorm

    PsiNorm

    A norm calculator for neuropsychological tests for daily use in clinic

    Our premise when starting this project was that why do we have to dig through arrays of normative values to find the group our patient belongs to. Then proceed to manually calculate its z score and find out where it is on the percentile graph, when we could have a software that could do it for us. We weren’t able to find one in the literature. Thus came the PsiNorm. Currently only a demo for english exists, while Turkish adapted version is fully functional. If you'd like a version adapted to your patient population/language please contact us at Contact e-mail: psinormsoftware@gmail.com
    Downloads: 1 This Week
    Last Update:
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  • 24
    calculadora-cordova-brython

    calculadora-cordova-brython

    Example of application created with Cordova and Brython

    Example of application created with the Cordova Framework and the Brython Interpreter. Simple calculator that allows basic operations.
    Downloads: 1 This Week
    Last Update:
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  • 25

    dAnalytics

    dAnalytics is a software made for education in discriminant analysis.

    dAnalytics is a software made for educational purposes to work with discriminant analysis. It's a very simple calculator over bi-dimensional populations. You input a file with two columns (one for each variable) and tryout different separations of populations (blue and red) and analyze it's efficiency by observing the eigen value result for the attempted separation. It also gives many information about the statistics both of the input and the separated populations. There's a documentation folder in the software which brings a quick start guide for this software.
    Downloads: 1 This Week
    Last Update:
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