Syscalc - Line-based scientific calculator.

Scientific Calculator - Javascript calculator with basic scientific functions.

Beautiful Calculator - Replacement for the standard Windows calculator with many additional features.

iFigure - Guide to online calculators, including those designed for home, travel, finance, health, small business, and more.

Maximath - Graphing calculator. Includes matrix editor and unit conversions.

URL-Calculator - Web application that evaluates arithmetic expressions embedded in a URL.

UnitMath - Simplifies calculations involving numbers, units, and precision.

Showcalc - Calculator with scrolling tape display.

PAPCW - Programmable arbitrary precision RPN calculator.

VPCalc - Variable-precision floating decimal calculator.

Fuzzycrawler Scientific Calculator - Javascript-based online calculator.

Scientific Calculator - Javascript scientific calculator using RPN.

Wise Calculator Homepage - Scientific and engineering calculator for Windows.

XActCode - Windows calculator programs for science, engineering, and mathematics.

Wahoo Software - Financial desktop calculator.

Scientific Calculator - Java applet online calculator.

Calculator.org - Calculator resources including free download of scientific engineering, statistical, and financial calculators.

Sicyon - Online graphing calculator.

Math Expression Calculator - Evaluates mathematical expressions involving multiple variables.

My Ten Key - A realistic ten key calculator designed by a CPA.

Online Unit Converter - Online conversions between metric and traditional units of measure.

Calin Interest Calculator - Calculate simple, tiered, and compound interest and repayment plans on contracts and for litigation purposes.

Matrix Calculator - Calculator for basic matrix operations. A demo version download is available.

Calculators Online Center - Extensive listing of online calculators for mathematics, engineering, statistics, and science.

Printing Calculator by Auroa Binary Systems - Desktop printing calculator. Prints in columns and color on standard-sized paper.

Easy Date Converter - Conversion program that gives the day of the week for a given date.

Matrix Calculator - Online Java calculator for matrix operations.

Constructive Reals Calculator - An RPN calculator applet and supporting Java library.

SlideRule - Scientific calculator for Macintosh.

1st Calculator - Scientific calculator.

WIRIS - JAVA applet that allows mathematical online calculations.

MathServ Calculus ToolKit - Online calculators for several calculus functions.

Calculators by Ken - Reference programs written in VB3. Includes common mathematical formulas.

GCalc - Online graphing calculator.

Kalculator for KDE 1.0 - Evaluates mathematical expressions. Includes history feature, function-pick window, and help. Variables and hex numbers are also supported.

Quadratic Equation Calculator - Calculator for solving a general quadratic equation.

SeeThru Calculator - Transparent desktop calculator with conversions, fractions, calendar, and sales tax.

Multi-Function Calculator - Multi-function calculator and unit conversion utility. Four modes of operation: statistics, trigonomety, base-n, and unit conversion.

Date Calculator - Perform date math, calculate date differences, and organize data and events.

Monachos Calculators - Online calculators with variety of engineering functions, including unit conversion, periodic table, piping applications, and electrical applications.

College Financial Calculator - Online financial calculator that determines NPV, IRR, MIRR, PV, FV and amortization schedules.

SoundRitSoft - Creators of AJI2000, a mathematical calculating application.