OmniCon 5.1 Description:

OmniCon is a unit conversion program designed to meet the high expectations of professional
engineers and scientists. However, OmniCon's easy-to-use interface means that everyone can easily perform conversions without any instruction. It easily and accurately interconverts between the Metric system, Imperial system, US customary system, CGPM standard units and others. OmniCon is the
standard for engineering firms, multinational corporations, universities, and students because of its unsurpassed accuracy. OmniCon ships with over 500 units in 43 physical quantities - it is therefore possible to perform
thousands of unique conversions! If you find that a conversion you need is not provided in OmniCon, you are free to add your own custom units and custom physical quantities. It is impossible to perform an inaccurate conversion with OmniCon, because of its unique and intelligent handling
of significant figures. OmniCon uses American and Canadian Government
standards as the source of its conversion factors for the utmost accuracy. Extensive online help is included, and OmniCon integrates well with other Windows applications.