Convert measure units

Convertion of the most used units of the most common measures ( about 20 ).
The application works in two screens.
The first is for the choise of the unit or the measure.
The second is for the convertion of all the units.
There is also something about INVESTMENTS.
You may have the value of the altitude and the water boiling temperature as function of the pressure.
It's possible to convert metrical measures in US/UK ones