Web Directory

» 10000 Digit Calculator
   A calculator that takes calculations out to many, many digits. Free to download.
   http://gc3.net84.net/bcalc.htm

» 1st Calculator
   Expression calculator and unit converter which allows the user to directly enter an expression to be evaluated.
   http://www.romanlab.com/1stcalc/

» 3gr Technologies
   Sells calculator software for engineers, businesses, and science. Applications for PCs, Apple IPhones, and smartphones.
   http://www.3grtech.com/

» AbaCalc
   Easy to use calculator with history, copy and paste, skins, different font sizes, can install on the taskbar and many other features. Downloadable trial version available.
   http://www.abacalc.com

» AddsUp
   PC function calculator that operates in Windows.
   http://www.addsup.net

» Archimede
   A powerful calculator for Linux. Algebric, RPN, vectors, matrices, quaternions, System, equations, complex numbers, solution of triangles, measure conversion. License GPL.
   http://mcz.altervista.org/index_in.html

» 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.
   http://www.bacsoftware.co.uk/fcalc1/

» CalcExp
   Personal desktop calculator and unit converter with advanced features.
   http://www.calcexp.com

» Calculator Directory
   Extensive variety of software calculators collected in one directory. Scientific, graphing, loan and mortgage, currency and conversion calculators.
   http://www.pc-calculators.com

» Calculator++
   Arbitrary-precision scientific calculator and unit converter written in Java. Freeware from iloc.com.
   http://www.iloc.com/products/calculator/

» Calculator.org
   Calculator resources including free download of scientific engineering, statistical, and financial calculators.
   http://www.calculator.org/

» Calculators by Ken
   Reference programs written in VB3. Includes common mathematical formulas.
   http://www3.sympatico.ca/prentice

» Command Line Calculator
   General purpose calculator which can be used to calculate mathematical expressions of unlimited length. Program is freeware.
   http://www.kotiposti.net/jjhalme/

» Constructive Reals Calculator
   An RPN calculator applet and supporting Java library.
   http://www.hpl.hp.com/personal/Hans_Boehm/crcalc/CRCalc.html

» Date Calculator
   Perform date math, calculate date differences, and organize data and events.
   http://www.lawtech.com.au/index.cfm?id=7

» DreamCalc Pro
   Photo-realistic scientific and financial calculator for Windows. Free trial download.
   http://www.dreamcalc.com/

» 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.
   http://www.hermetic.ch/edc/edc.htm

» Farsight Calculator
   Programmable scientific and financial calculators.
   http://www.farsightsoft.com/

» Fornux PowerCalc-GX
   A scientific calculator for Windows that can plot functions and diagrams with many mathematical functions for statistics and algebra.
   http://www.fornux.com

» Fung-Calc - Graphing Calculator
   2D and 3D graphing calculator for Linux with multiple graphing modes.
   http://fung-calc.sourceforge.net

» GoldfishSoft
   Free software for the Macintosh. FrakKalk, the newest GoldfishSoft Program, is a fraction calculator for Mac OS X.
   http://homepage.mac.com/goldfish1/

» HEXelon MAX
   Scientific calculator, currency and units converter.
   http://www.hexelon.com/kalkulator/index_en.php

» HiDigit
   Powerful calculator for students and teachers. Five number systems, full complex numbers support, and 15-digit maximum precision.
   http://www.binarythings.com/hidigit/

» High Precision JavaScript Calculator
   A JavaScript Calculator that adds, subtracts and multiplies fairly large numbers. Functions are added in my copious free time.
   http://www.petting-zoo.org/Calculator.html

» Jason's Calculator
   The homepage for an easy to use multipurpose shareware calculator.
   http://calculator.8m.net/

» Kalkulon
   Platform-independent open source expression calculator. It supports a C-like expression syntax and has its own small programming language. Customizable GUI as well as console version available.
   http://www.holetzeck.de/kalkulon/

» Linear Algebra Calculator
   mcalcdos is a free command line linear algebra calculator capable of matrix, vector and polynomial operations in real and complex fields.
   http://www.angelfire.com/space/matrixcalc/

» Matrix Calculator
   Calculator for basic matrix operations. A demo version download is available.
   http://members.shaw.ca/mtx/matrix.htm

» Multi-Function Calculator
   Multi-function shareware calculator, and unit conversion utility for Windows. Four modes of operation: statistics, trigonometry, base-n, and unit conversion.
   http://www.rjsoftware.com/FNA/

» My Ten Key
   A realistic ten key calculator designed by a CPA.
   http://www.mytenkey.com/

» Online Calculators
   A collection of everyday use calculators and converters written in Javascript and PHP, available to use and download.
   http://www.online-calculators.co.uk

» Online Expression Calculator
   Supports basic arithmetic, trigonometric and logarithmic functions.
   http://www.calcmachine.com/online-calculator.php

» PG Calculator
   A scientific calculator with full customizable user interface. Algebraic and RPN mode. Windows; shareware trial version.
   http://www.pgcalc.net/

» Pc Calculator
   Provides a note and formula editor combined with an advanced scientific calculator.
   http://pc-calculator.sourceforge.net/

» Printing Calculator by Auroa Binary Systems
   Desktop printing calculator. Prints in columns and color on standard-sized paper.
   http://www.angelfire.com/biz/ccsprog/Calculators.htm

» 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.
   http://www.computersciencelab.com/RPNCalc.htm

» Runiter Company
   Provides a scientific calculator and graphing calculator to download or try online.
   http://calculator.runiter.com

» Scientific Advantage Calculator for Pocket PC
   Calculator works with feet-inch-fraction dimensional values and includes advanced math functions, and automatic solvers.
   http://www.advantagecalculators.com/main.aspx?PID=SciProduct

» ScriptConsole
   Mathematical calculations using scripts and commands in a console-based multiple-window interface using the Microsoft VBScript engine. Windows; shareware.
   http://www.flashpeak.com/scriptcon

» Speakeasy
   A user-oriented software package that allows non-programmers the opportunity to explore the computational power of their computer. Free trial download.
   http://www.speakeasy.com/

» TTCalc
   An open source mathematical calculator. Features include arithmetical, trigonometric, inverse trigonometric, hyperbolic and inverse hyperbolic functions, logical operators and logarithms.
   http://ttcalc.sourceforge.net/

» UnitMath
   Simplifies calculations involving numbers, units, and precision.
   http://unitmath.com/

» Volume of Partially Full Cylinders, Spheres and Cones
   Java applet for partially full cylinder (on side), sphere, and cone.
   http://www.lmnoeng.com/Volume/CylConeSphere.htm

» Vorwerk & Stengel GbR
   Offers RealCalculator, a scientific calculator and function plotter. German and English.
   http://www.vorwerk-stengel.de

» WIRIS
   JAVA applet that allows mathematical online calculations.
   http://calculadora.edu365.com

» Wahoo Software
   Financial desktop calculator.
   http://www.xmlcreate.com/

» WebCalc
   Collection of free web based calculators for many subject areas.
   http://www.webcalc.net

» Wise Calculator Homepage
   Scientific and engineering calculator for Windows.
   http://pmikh.chat.ru/

» X-Bc
   A graphical user interface to bc with a lot of functionality for scientific working. Input and output stay visible at all time for correction and comparation.
   http://x-bc.sourceforge.net

» 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.
   http://www.efg2.com/Lab/Mathematics/CRC.htm

» 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.
   http://numerator.sourceforge.net

» iCalculator 2.0
   A two-line expression calculator to type in calculations the way they are written, with a replay function to allow editing them to make corrections.
   http://www.iqutools.com

» sCal and sCal2
   Small, open source (free), scientific and engineering, JavaScript-programmable calculators.
   http://scal-2.sourceforge.net