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

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  • 1
    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: 16 This Week
    Last Update:
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  • 2
    Advanced Trigonometry Calculator

    Advanced Trigonometry Calculator

    Open-source C/C++ math engine for advanced scientific computing

    Advanced Trigonometry Calculator (ATC) is an open-source mathematical computing engine written mainly in C/C++. Created in 2011 and maintained by Renato Alexandre dos Santos Freitas, ATC is designed as a practical Windows desktop application for advanced calculations, automation, and technical problem solving. ATC supports equation solving, polynomial tools, complex numbers, matrix calculations, statistics, physics, geometry, unit conversions, DSP/FFT operations, and scripting. It can also process batch TXT files, making it useful for repeatable calculations and automated workflows. The project also includes ATC Online Alpha, a WebAssembly-based version that brings parts of the ATC engine to the web. ATC is released under the GPLv3 license and is made in Portugal.
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    Downloads: 18 This Week
    Last Update:
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  • 3
    This is a Hash Calculating tool that calculates MD2,MD5,SHA-1,SHA-256,SHA-384,SHA-512 hash of text or a file. This has GUI developed in java swings.All it needs is sun jre installed.
    Downloads: 17 This Week
    Last Update:
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  • 4
    Giacenze Crypto

    Giacenze Crypto

    Programma per il calcolo delle plusvalenze Cripto + analisi CSV CDC

    Il programma permette di calcolare le plusvalenze (calcolate attraverso il metodo del LIFO) derivanti dagli scambi di criptovalute un po' su tutte le piattaforme e sulla Defi, inoltre per gli utenti di Crypto.com c’è anche la possibilità di calcolare saldo e giacenza media della Carta Visa e del Fiat Wallet. Le istruzioni sul funzionamento sono reperibili qua : https://sourceforge.net/p/giacenze-crypto-com/wiki/ISTRUZIONI/ e qua : https://sourceforge.net/projects/giacenze-crypto-com/files/Documentazione/ Per ulteriori info potete unirvi al gruppo telegram https://t.me/+6kfy5mjov-I2ODY8. Codice Sorgente : https://github.com/Lucapasselli/GiacenzeCrypto Canale Youtube : https://www.youtube.com/@cryptofer82
    Downloads: 11 This Week
    Last Update:
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  • 5
    Smith Chart Calculator

    Smith Chart Calculator

    Smith Chart Calculator JAVA

    A small tool which allows all basic smith chart actions. This program was created for educational purposes. JAVA RUNTIME REQUIRED Tested on Windows. Some features may not available with other OS (e.g. copy to clipboard) GENERAL PUBLIC LICENSE There is a pdf help file online take a look in the files section. There is also a link available in the program itself.
    Downloads: 6 This Week
    Last Update:
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  • 6
    jRCaLc

    jRCaLc

    jRCaLc is a program designed to aid you in working with resistors.

    jRCaLc is a resistor calculator outfitted with various tools, meant to aid in work related to resistors.
    Downloads: 4 This Week
    Last Update:
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  • 7
    BigAl

    BigAl

    a free cross platform calculator for calculating BIG numbers

    BigAl is a free open source and platform independent software for calculating really BIG numbers. It supports not only standard arithmetic, but also exact period determination, predefined factorials, fibonacci with seeds, factorization, nth root, etc
    Downloads: 9 This Week
    Last Update:
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  • 8
    This is a Reverse Polish Notation (RPN) Fraction Calculator. It works like any other RPN calculator, except that it operates on fractions instead of decimal numbers. Decimal number entries are not permitted. Whole numbers are permitted.
    Downloads: 8 This Week
    Last Update:
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  • 9
    Calculates victory odds for battles in Axis and Allies 1940 Edition. It takes into account the newly added units and rules in this release of the board game. Displays win/loss/tie percentages, IPC cost/loss, and remaining units. Requires Java https://blog.henrypoon.com/blog/2010/12/24/axis-and-allies-1940-battle-calculatorsimulator/
    Downloads: 4 This Week
    Last Update:
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  • 10
    Weight Watchers Point Calculator will allow you to calculate your points from calories, grams of fiber and grams of fat.
    Downloads: 7 This Week
    Last Update:
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  • 11
    UltimateCalculator

    UltimateCalculator

    Basic Scientific Calculator

    This software has four major modes- Simple, Scientific, Base & Equation. It also has Unit Converter, Date Calculator & Prime Number Generator.
    Downloads: 6 This Week
    Last Update:
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  • 12
    IPhone Calculator For Windows

    IPhone Calculator For Windows

    IPhone Calculator For Windows

    A Fully functional IPhone Calculator designed in JAVA. This is my first ever project which i completed in my spare time, i hope everybody enjoys it and can give me feedback to improve the application, if need be, email me at: keyte.miles@gmail.com
    Downloads: 5 This Week
    Last Update:
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  • 13
    Calcoo is a scientific calculator (with both RPN and algebraic modes) designed to provide maximum usability.
    Downloads: 4 This Week
    Last Update:
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  • 14
    Pyramid Calc

    Pyramid Calc

    Simple calculator

    Simple and fast in use scientific calculator. More details in README. It's not that long.
    Downloads: 4 This Week
    Last Update:
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  • 15
    pj-net-tools

    pj-net-tools

    Pure Java Network Tools

    Pure Java Network Tools. Free portable cross-platform. Include: 01) ICMP-ping, 02) ICMP-traceroute, 03) DNS-check resolver, 04) Parallel Host TCP-scanner, 05) IP-calculator, 06) Syslog-server, 07) Local ARP-cache request, 08) Parallel Network Ping-Scanner, 09) Snmp-Get concrete value utility. 10) Parallel ICMP flood utility. 11) Parallel UDP flood utility. 12) TFTP-server. 13) NTP-server. 14) Host TCP-ping. 15) SNMP-MRTG traffic monitor. 16) Anonymous FTP-server. 17) Parallel Network TCP-scanner. 18) Parallel Network SNMP-scanner. 19) Parallel Network DNS-scanner. 20) Parallel SNMP-DoS. 21) Parallel HTTP/HTTPS-DoS Need JRE-1.8: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html . Source - https://github.com/harp077/pj-net-tools . If you like this - put a star on https://github.com/harp077/pj-net-tools
    Downloads: 4 This Week
    Last Update:
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  • 16
    HashTool

    HashTool

    Easily calculate hash values.

    HashTool calculates the most common hash and hmac values of files and strings by using the "Bouncy Castle Java cryptography API".
    Downloads: 2 This Week
    Last Update:
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  • 17
    The Internet Protocol Address Calculator is an open-source java-based tool. This calculator will assist network administrators to perform calculations over both IPv4 and IPv6 address space. A handy whois search client is also integrated into this tool.
    Downloads: 2 This Week
    Last Update:
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  • 18
    Fx702p

    Fx702p

    A Casio Fx702p handheld-computer emulator

    A fully-featured Casio Fx702p emulator including the calculator mode, a full basic implementation and a original debugger as well as some sample programs.
    Downloads: 6 This Week
    Last Update:
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  • 19
    Elite Calculator

    Elite Calculator

    Elite Calculator - Accurate Math Solutions

    Elite Calculator Simplify your calculations with Elite Calculator, the ultimate tool for quick and accurate math solutions. Designed with a sleek interface and packed with features, it's your all-in-one math assistant. Key Features: 🔢 Standard Calculator: Perform basic arithmetic operations like addition, subtraction, multiplication, and division. 📐 Scientific Mode: Access advanced functions for trigonometry, logarithms, and more. 🎨 Customizable Themes: Switch between light and dark themes. 📏 Dynamic Font Adjustment: Ensures clear and readable calculations. 🌐 Offline: No data collection, no ads. ⌨️ Keyboard Shortcuts: Enhance productivity. Download now and make math effortless!
    Downloads: 3 This Week
    Last Update:
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  • 20
    A Pace Calculator is a simple application used to calculate a runner's pace: given a run time and distance.
    Downloads: 3 This Week
    Last Update:
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  • 21
    Very Basic java Calculator using java web start! All you have to do is click on "cal.jnlp" file to run the basic web start calculator.
    Downloads: 2 This Week
    Last Update:
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  • 22
    IPCalc v1.2

    IPCalc v1.2

    This project is an IP calculator to educational usage

    A desktop application which is written in Java programming language. You can use it to educational purposes. This application by knowing the host IP address and the subnet mask can count network IP address, broadcast address and how many hosts can be at the network, Also shows binary operations.
    Downloads: 2 This Week
    Last Update:
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  • 23
    KeroZen
    A small calculator for pilots who need to calculate the volume (or the mass) of a given mass (or volume) of kerozen.
    Downloads: 2 This Week
    Last Update:
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  • 24
    Shift Time Calculator

    Shift Time Calculator

    Calculates Shift Times

    Calculates Shift Times - Really handy, if like me you struggle with those quarter to the hour and quarter past the hour starts and finishes. Includes break times, just enter how long you took for that break. Medics, Steelworkers, and anyone who works shifts may find this handy. Written in java (Open JDK 11), this will work on Linux, Mac and Windows as long as you have a Java Runtime environment installed. Windows installer with bundled java runtime environment for those without java on their machine. visit: https://www.openlogic.com/openjdk-downloads if you're having issues with Java... Seems not all JDK's are created equal.
    Downloads: 2 This Week
    Last Update:
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  • 25

    Subnet Calculator

    A simple tool that performs network math with subnets.

    Given a valid IP address and subnet mask, this program will return the necessary subnetwork data.
    Downloads: 2 This Week
    Last Update:
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