Have you ever needed to convert inches into centimeters? Did you search around for a conversion table for an hour just to find out that 1 inch equals 2.54 centimeters? Or maybe you had a tougher conversion, and you couldn't find a conversion factor for that. Or worse, you found a conversion factor--but you realized you had no idea how to use it to get the right answer! Synergy Creations' ConverTable UnitsTM addresses all of these situations! By the way, that's ConverTable Units as in "Conver(sion) Table (of) Units." Features: • Quick unit conversions. • Plug-in architecture--add your own units. (Plug-in editor available here!) • User-friendly interface. • Easy to use calculators included-both algebraic and RPN! • Convert values in external text files (new in 2.3)! • Native Mac OS X version available! • Teaches how unit conversions are done for when you don't have a computer! • Over 450 units available! 132 (Built-In, Unregistered) + 105 (Built-In, Registered) + 219 (Plug-Ins).