From Inventive Design:
Unit Converter Professional is a tool that converts more than 800 pairs of units within 32 different categories. This tool provides convenience for students, scientists, chemists, and engineers. The application also includes a practical calculator and a useful library of common formulas and equations used in mathematics and physics. Version 1.4 adds a useful browse function, allowing users to quickly search through 100s of units and categories.
What's new in this version:
User interface has been enhanced to improve workflow. A new browse function is added to quickly search through 100s of units.