Open Source Calculators
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Browse free open source Calculators and projects 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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Monitor your whole IT InfrastructureCaters to tech staff, system Administrators, and companies of any size, from small and medium sized businesses to enterprises that need their IT network to be reliable and easy to monitor in real-time. Equipped with an easy-to-use, intuitive interface with a cutting-edge monitoring engine. PRTG optimizes connections and workloads as well as reducing operational costs by avoiding outages while saving time and controlling service level agreements (SLAs).
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Stigg | SaaS Monetization and Entitlements APIA monetization platform is a standalone middleware that sits between your application and your business applications, as part of the modern enterprise billing stack. Stigg unifies all the APIs and abstractions billing and platform engineers had to build and maintain in-house otherwise. Acting as your centralized source of truth, with a highly scalable and flexible entitlements management, rolling out any pricing and packaging change is now a self-service, risk-free, exercise.
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The Revolution-FX project goal is to provide the best platform for developing applications for the CASIO fx-9860G graphing calculator. Revolution-FX components include addheader, code editor, a hardware library, and works with the GNU toolchain.
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CIMA
Body Mass Index (BMI) and Other Indexes Calculator with Classification
CIMA is a program that provides an easy way to calculate a diversity of body indexes related to the fat content and energy needs, providing a way to control our weight: 1 - Body Mass Index (BMI), including both the traditional and the new proposed formulas, and provides a classification of the results. The evaluation takes in account the age groups (adults, children and the elderly). 2 - Body Adiposity Index (BAI). 3 - Basal Metabolic Rate (BMR) for Men and for Women. 4 - Body Fat Percentage (BFP). 5 - Total Daily Calories Needs based on the activity levels of the user lifestyle. The program supports 3 languages (English, European Portuguese and Brazilian Portuguese). IMPORTANT: CIMA works only with the International System of Units (SI). No other systems are allowed since SI is the standard one. CIMA may still require a depuration before becoming a mature program, but it is already functional and may be downloaded by anyone. -
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Finance Calculator Ultimate
Current product is intended for pro accountants, financial managers.
It works on Windows XP/VISTA/7/8 versions, is stable and simple to use. Current product is intended for professional accountants, financial managers and experienced investors. Besides ergonomic report printing function, you can copy and paste report results into any Windows/Office compatible text editor. Our calculator includes: •Mortgage economics •Enterprise financial analysis •Production management analysis •Project analysis, etc. Our software is plug&play and easy to use. It works a lot faster than similar online calculators. Our company is operating under the "T-Count.com" brand name and is engaged in financial software production. To obtain broader view of software or to purchase it please contact us at WWW.FINANCE-INVESTOR.COM -
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A simple Texas Holdem calculator for Windows Mobile 5/6, Windows Phone 7, that helps calculating hand and pot odds.
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Powering the best of the internet | FastlyEnsure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
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mathSuite
Powerful Calculus Environment and Matrices Handling Engine
mathSuite is a very powerful Mathematical Suite which deals principally with complex algebric and geometric operations. It is powered by the fabulous ExprEval C Parser. The main purpose of this project is fast math-oriented algorithm virtualization, with an optimized direct text interface. Also it gives you a very powerful and fast Calculus Environment which let you handle easily interchangeable variable lists, matrices, LOGS and Settings Layouts with optimized Items Lists Managing Engine. You'll also be able to execute your own scriptfiles with a basic math-oriented beta script language. Some feature regarding Matrices and Linear Algebra Operations are LU-Factorization, SVD Decomposition, Rank Calculator, Ill Condition Checking and more... There are also a very powerful Linear System Solver and Basic PRELoaded Functions Integrator Engine. -
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Reor Calculator
Reor is a winsome calculator with loads of functions, by Ajay Menon.
Reor is a free calculator which is crafted into perfection with a winsome interface. Reor has got Scientific, Statistical, Graphical and many more types of tools built-into it, while maintaining an attractive interface. -
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AuCa
Auction Calculator
Auction Calculator -
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CO2 Calculator
Every PC user should know how much his Computer is polluting the World
A freeware program that allows you to calculate the gramms of Dioxyde Carbon (CO2) produced by your computer. The CO2 gramms depends on the pc power and the energy source, that the user can choose between the Coal, Natural Gas and Solar and are calculated each second. -
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DOFView
Graphical Depth of Field Calculator
DOFView is a "Depth of Field" Calculator. It is a small application written in C++/Qt for Window and Linux to evaluate the effect of the focal, subject distance, and the f-Number change, on the depth of field. DOFView will report near and far distance limits, hyperfocal, total DoF etc., both in textual or graphical format. A simulation of what can be seen in the camera viewfinder is also shown in 3D. The application was inspired by my Nikon D5100, even if the user can set information and use this program selecting among hundreds of compact or DSLR camera models. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Eur oTruck Calculator
En Android app till att knyta samman åkeriföreningar.
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Evrika
Science simulator and advanced calculator based on modules
Evrika is a science simulator and advanced calculator, which is based on modules. Modules are libraries containing definitions of concepts that can be used in the simulation. By definitions we mean properties, actions, reactions, etc. Evrika is used for creating both simulations and modules, so you can build your own module of elements, then use them to create virtual experiments and simulations. Also, you can make advanced calculations. Evrika is basically an executable that reads and interprets code, outputing result. Each new version will offer new possibilities to define your elements and use them, so it is important to always have the last release. Of course, Evrika is backward-compatible, cross platform and free to use. In the near future an advanced editor and viewer will be created, so you can better manage your code and view the results. -
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Exposure Calculator for Android
Convert exposure measure from DSLR to use on view camera
Convert the light measured using a digital camera (aperture, speed and iso) to use on a view camera (taking in account film non-reciprocity, filter and bellow extension) on android phone. -
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FormulaEquation
An equation calculator
FormulaEquation is an equation calculator. It can compute non-standard equation. SIMPLIFIED CHINESE ONLY -
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Numeric Base Calculator
Numeric base conversion & arithmatic operations
'Numeric Base Calculator' is a console application developed in java.It allows you to do conversitions and simple arithmatic operations involving the most commonly used bases like 2,4,8,10 & 16.You can convert a digit from one base to another.You can perform arithmatic operations like addition,substraction,multipication & division using those bases.This is a handy tool for you to check or do your homework! -
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OpenRPN is an initiative to design and produce ultra high-quality calculator hardware and software for advanced students and professional users.
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PAYROLL Calculator + STAFF COSTS
Entrances/exits admin. of 7 employees for 1 year and for every year
Entrances/exits administration of 7 employees for 1 year and for every year. It saves absence, overtime, sick days, holiday pay, Christmas bonus + special, and calculates STAFF COSTS (gross / net) for different periods of time (hour / day / week / month / year). For more than seven employees you can use a second copy of the file. Full explanation on the file. -
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Phone Call Cost
Phone call cost calculator
Phone Call Cost is a program that in the end, aims to be able to pull length of call time from a phone that displays such information and multiply it by a known rate (given to the program via the UI (or hard coded in by the end user)) and return the cost -
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Picalc
Picalc калькулятор
Picalc калькулятор Picalc calculator -
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Inspired by the movie "Number 23". I've written a python program who calculates the sum of a string and he puts out a message if the sum has anything to do with the number 23. http://creativecommons.org/licenses/GPL/2.0/
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Dies ist der WHO Attack Calculator, mit dem man Angriffe so fuer World Hack (http://world-hack.org) berechnen kann, dass angegeben wird, ob Viren geloescht werden oder nicht.
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bitrate-xls
calculator for avi-file streams
A "bitwise precision tool" bitrate calculator using MS-EXCELL programming. The results are used for DVD Video to audio-video streams. It helps compute VIDEO- & AUDIO-Bitrates, aspect ratio, screen size, choose audio format cbr. Has units MB,pixel,d:h:m:s, kbps, etc -
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Freelance calculator. This allows the measurement of orders on the basis of the calculated hourly rate and schedule tasks. The program is free for commercial and noncommercial use.
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