It won't win any beauty contests, but this free software calculator rocks the socks off the standard Windows applet. In addition to doing simple arithmetic, Calc98 supports financial functions, (including interest and discount, annuity, mortgage payment), unit conversions, physical constants, and support for matrices and complex numbers. It can even work in Reverse Polish Notation (RPN). A modest but well-chosen set of options lets you fine-tune the keypad and the way digits are displayed. Our main complaint with Calc98 is it can't emulate a paper tape--a useful feature when you want to store your calculations. We also thought pressing the shift key ought to trigger the program's shift function. But don't let that stop you. If you don't need good looks or graphing capabilities, Calc98 probably has everything you'd want in a desktop calculator.
What's new in version 5.3
ReleaseNovember 8, 2008
Date AddedFebruary 3, 2006
Operating SystemsWindows 95, Windows 2000, Windows 98, Windows Me, Windows, Windows XP, Windows NT
Calc98 is a pocket calculator simulator program for the Microsoft Windows operating system. It is a replacement for the calculator program that is included with the operating system, with many additional features and greater flexibility. It is especially designed for scientific and engineering use and includes a wide range of units conversions and scientific functions. It also has statistics and financial and time functions, including a stopwatch.