See also:

• Business: Investing: Software: Calculators  (53)
• Computers: Hardware: Calculators  (82)
• Computers: Software: Shareware: Windows: Mathematics: Calculators  (15)
• Science: Math: Education: Software  (102)
• Science: Reference: Units of Measurement: Online Calculators  (13)

• AddsUp - PC function calculator that operates in Windows.
• Archimede - A powerful calculator for Linux. Algebric, RPN, vectors, matrices, quaternions, System, equations, complex numbers, solution of triangles, measure conversion. License GPL.
• BAC Computer Software - Calculator that performs the basic arithmetic operations on fractions and then at the press of a button gives you a detailed explanation of how the computation was done.
• Calculator Directory - Extensive variety of software calculators collected in one directory. Scientific, graphing, loan and mortgage, currency and conversion calculators.
• Calculator Express Math Formulas - Includes arithmetic, mortgage and currency exchange processing features. Uses a dialog box and icons for input.
• Calculator.org - Calculator resources including free download of scientific engineering, statistical, and financial calculators.
• Calculators by Ken - Reference programs written in VB3. Includes common mathematical formulas.
• Command-line Calculator for tcsh/bash/zsh - Guide on how to create a simple command-line calculator for the tcsh, bash and zsh shells.
• Constructive Reals Calculator - An RPN calculator applet and supporting Java library.
• Date Calculator - Perform date math, calculate date differences, and organize data and events.
• 5000 digit calculator - A calculator that takes calculations out to many, many digits
• DreamCalc Pro - Photo-realistic scientific and financial calculator for Windows. Free trial download.
• Easy Date Converter - Adds a number of days to a date, calculates the number of days between two dates, and converts among Gregorian dates, Julian dates, Julian day numbers and ordinal dates of the form yyyyddd. Supports batch computation.
• efg's Computer Lab: Cyclic Redundancy Code Calculator - Lab Report about computing CRC-16 and CRC-32 values using Delphi. Includes links and literature references.
• EngCalc Calculator - Calculate and evaluate expressions even by copying and pasting expressions from other applications. It can also read txt (Text) or .doc files automatically line by line.
• 16 function webpage calculator - Scientific web page calculator, written in JavaScript.
• Fung-Calc - Graphing Calculator - 2D and 3D graphing calculator for Linux with multiple graphing modes.
• GCalc -- Java Mathematical Graphing System - Free online graphing calculator for education use with 2d, 3d, cartesian, polar, calculus, differential equations, scientific, implicit function components.
• gNumerator - A interactive computer math system that uses standard JavaScript as the scripting language, and a collection of re-usable math oriented components such as a complete MathML DOM implementation, and a MathML viewing / editing control.
• GoldfishSoft - Free software for the Macintosh. FrakKalk, the newest GoldfishSoft Program, is a fraction calculator for Mac OS X.
• Haxial Calculator - High precision calculator with unit and radix converters. Requires payment after the free trial.
• HiDigit - Powerful calculator for students and teachers. Five number systems, full complex numbers support, and 15-digit maximum precision.
• High Precision JavaScript Calculator - A JavaScript Calculator that adds, subtracts and multiplies fairly large numbers. Functions are added in my copious free time.
• iFigure - Guide to online calculators, including those designed for home, travel, finance, health, and small business.
• Jason's Calculator - Open source calculator application for the Windows platform.
• Jason's Calculator - The homepage for an easy to use multipurpose shareware calculator.
• Linear Algebra Calculator - mcalcdos is a free command line linear algebra calculator capable of matrix, vector and polynomial operations in real and complex fields.
• Matrix Calculator - Online Java calculator for matrix operations.
• Matrix Calculator - Calculator for basic matrix operations. A demo version download is available.
• Monachos Calculators - Online calculators with variety of engineering functions, including unit conversion, periodic table, piping applications, and electrical applications.
• Multi-Function Calculator - Multi-function shareware calculator, and unit conversion utility for Windows. Four modes of operation: statistics, trigonomety, base-n, and unit conversion.
• My Ten Key - A realistic ten key calculator designed by a CPA.
• Online Calculator - A collection of online calculators
• Online Calculators - A collection of everyday use calculators and converters written in Javascript and PHP, available to use and download.
• Online Matrix Calculator - Calculates matrix determinant and inverse. Performs LU, Cholesky, QR, SVD decompositions. Calculates eigenvalues and eigenvectors.
• PG Calculator - A scientific calculator with full customizable user interface. Aalgebraic and RPN mode. Windows; shareware trial version.
• Pocket 16C Calculator - HP-16C emulator calculator for Pocket PC, by Pirrama Development. Free trial download.
• Pocket Calculator - Online calculator, written in Java. Includes Square root button and number memory. Source code can be downloaded.
• PractiCalc Windows Calculator - PractiCalc is a calculator and conversion tool for all 32 bit windows platforms. It provides result of calculations they are typed.
• Printing Calculator by Auroa Binary Systems - Desktop printing calculator. Prints in columns and color on standard-sized paper.
• Quadratic Equation Calculator - Calculator for solving a general quadratic equation.
• RPN Calculator - This Windows programs emulates a fully programmable HP29C RPN calculator that has been augmented with linear curve fit and graphing capability. It was written to serve as a fun introduction to computer programming.
• sCal and sCal2 - Small, open source (free), scientific and engineering, JavaScript-programmable calculators.
• Scientific Advantage Calculator for Pocket PC - Calculator works with feet-inch-fraction dimensional values and includes advanced math functions, and automatic solvers.
• Scientific Calculator - Java applet online calculator.
• Scientific Calculator - Javascript calculator with basic scientific functions.
• Scientific calculator with graphing capabilities - Fornux Calculator is a scientific calculator for Windows that can plot functions and diagrams with many mathematical functions for statistics and algebra.
• Scientific Online Calculator - Online math calculator with lots of Scientific functions very easy to use.
• ScriptConsole - Mathematical calculations using scripts and commands in a console-based multiple-window interface using the Microsoft VBScript engine. Windows; shareware.
• Sicyon - Online graphing calculator.
• Speakeasy - A user-oriented software package that allows non-programmers the opportunity to explore the computational power of their computer. Free trial download.
• 1st Calculator - Scientific calculator.
• Syntan - a calculator of math functions for Windows. - A calculator of math functions based on syntax analysis with living graph. Free download.
• Unit Conversion Tool - Convert between 2200 units in 78 measurement categories. Includes units for length, mass, temperature, volume, area, speed, pressure, energy, power, force, fuel consumption, flow and torque.
• UnitMath - Simplifies calculations involving numbers, units, and precision.
• Volume of Partially Full Cylinders, Spheres and Cones - Java applet for partially full cylinder (on side), sphere, and cone.
• Wahoo Software - Financial desktop calculator.
• WebCalc - Collection of free web based calculators for many subject areas.
• WIRIS - JAVA applet that allows mathematical online calculations.
• Wise Calculator Homepage - Scientific and engineering calculator for Windows.
• X-Bc - a GUI to bc - X-Bc is desktop calculator that provides lots of functionality for scientific working. Input and output stay visble at all time for correction and comparation. It's a frontend to bc.