Unit Converter Pro is a handy utility for practitioners in technical subjects. It can quickly convert more than 1500 different units in 78 categories. It contains the most important conversion factors for length, area, volume, mass, force, and time units. But it provides many high-specialized units and categories, too. Unit Converter Pro offers fully customizable databases and allows you to create conversion tables.

Shell-and-Tube Heat Exchanger - is a user friendly program which for a given heat exchanger initial conditions and geometry predicts outlet temperatures of both shell-side and tube-side fluids, heat exchanged, pressure drop on the tube sides and fluid velocity in the inlet/outlet nozzles. For a given input and output conditions the program can estimate preliminary heat exchanger design parameters.