"How often do you spend your time then you switch your attention from your display to the desktop calculator to calculate some expressions what you need? Now you can save a lot of your precious seconds, if you'll become a user of The Calculator - a universal, powerful tool for scientific and engineering computations. Usually this small program hides out in the System Tray and doesn't cower the space of your screen. But only press NumLock key and The Calculator will pop up to help you with your computations. The value suffixes is one of the most interesting features of The Calculator. So, if you need to enter a 4 000 000, just type 4M. That's all! Need to calculate the cosine of 20 degrees? (By default, The Calculator works with radians) Type cos(20g) and get the result. It's simple, it's easy-to-use and it's effective!"

Wise Calculator 7.9 A powerful program designed for engineering and scientific calculations » 02.05.2003 - 826 KB - 98/ME/XP - Free

Date Calculator 2.1 A simple utility to calculate the number of days, weeks, months, or years between any 2 dates » 12.04.2008 - 595.3 KB - 98/ME/2K/XP - Free

TimePuter 3.1 Date/time calculator with many related features. Calculate time periods based on the start and final dates along with the sum/difference calculation of the start time/date and input data. Export results HTML, XML or text files » 24.05.2005 - 1,26 MB - 98/ME/XP - Trial, $34.99

SkinCalc 3.5 Calculator with more than 100 skins and support for translucency effects. » 25.12.2005 - 2.23 MB - 98/ME/XP - Free

MathCalc 2.1 MathCalc is a handy mathematical calculator as well as easy-to-use 2D graph plotter » 17.03.2006 - 1.01 MB - 98/ME/XP - Trial, $24

Math Tablet 2.1 Math Tablet is a powerful scientific calculator » 18.03.2006 - 7.55 MB - XP - Trial, $9.95

ABA-X1 1.1 ABA-X1 is a Java based application that calculates mathematical expressions, it has a large number of built-in operators and functions » 27.03.2006 - 1.18 MB - 98/ME/XP - Free

Data Master 2003 11.7.0.242 Plot, edit and analyze numeric data, automate measurements and post-process » 20.05.2006 - 4653 KB - 98/ME/XP - Free

RedCrab 7.8.1 (Portable) RedCrab is a calculator with a full-screen editor. The mathematical expressions are not typed in a typical command line, but can be enter in the editor window » 19.08.2019 - 4.46 MB - Windows XP/7/8/10 - Free

Date Calculator 2.1 A simple utility to calculate the number of days, weeks, months, or years between any 2 dates » 12.04.2008 - 595.3 KB - 98/ME/2K/XP - Free

CalculatorX 1.2 Repack CalculatorX is an enhanced expression calculator with the unlimited ability to extend itself by using Custom Functions. You can add your own functions for CalculatorX to make your work easier » 06.05.2007 - 1.09 MB - 98/XP/2K/Vista - Shareware, $24.95

Algebrus 3.1 build 700 Algebrus can be used both as a simple "evaluate-while-typing" calculator and as a powerful mathematical analysis application, which includes 2D and 3D graphic plots of functions and data, command line execution console, and a syntax-highlighted XPascal editor » 28.12.2007 - 2.82 MB - 98/ME/2K/XP - Shareware, $39.90

Extended Engineer Pro 1.0 A multifunctional scientific calc with graph builder » 02.07.2006 - 1.06 MB - 98/ME/NT/2K/XP - Free

Data Master 2003 11.7.0.242 Plot, edit and analyze numeric data, automate measurements and post-process » 20.05.2006 - 4653 KB - 98/ME/NT/2K/XP - Free

ABA-X1 1.1 ABA-X1 is a Java based application that calculates mathematical expressions, it has a large number of built-in operators and functions » 27.03.2006 - 1.18 MB - 98/ME/NT/2K/XP - Free

Math Tablet 2.1 Math Tablet is a powerful scientific calculator » 18.03.2006 - 7.55 MB - XP - Trial, $9.95

MathCalc 2.1 MathCalc is a handy mathematical calculator as well as easy-to-use 2D graph plotter » 17.03.2006 - 1.01 MB - 98/ME/NT/2K/XP - Trial, $24

SkinCalc 3.5 Calculator with more than 100 skins and support for translucency effects. » 25.12.2005 - 2.23 MB - 98/ME/NT/2K/XP - Free

Enables you to play RealMedia files without having to install RealPlayer. Supported formats: .ra, .rpm, .rm, .ram, .rmvb, .rpx, .smi, .smil, .rt. The suite includes: Media Player Classic, RealMedia Codecs, RealMedia DirectShow splitter, and the required plug-ins. "Download" links to the Real Alternative Downloads page.