You don't need to learn by hard all the conversion units. RR's Unit Converter will help you obtain the right conversion from over 1000 units definitions. It's actually a tool for metric, weight, area, volume and other unit onversions which are used by scientist, engineers or students. These can be simple or compound and can be edited also by the user.
At the same time the application includes also a dictionary which includes definitions for all the units. You can add also new units in the database or delete others that are not useful to you.
The interface is really friendly and has a more educative way of presenting the conversions. I mean for a simple engineer only the result of the conversion is important despite the student which needs also additional information of the units. These informations are really useful when you try to use some archaic units.
Pluses: huge database units; explanations of the units
Drawbacks / flaws:
In conclusion: Good for students, engineers and scientists.
