Using iUnit is easy. Just select the type of conversion you'd like to perform from the Conversion menu. For example, if you'd like to convert between feet, inches, meters, and other units of distance, select Distance. Then select the unit you'd like to convert from, by clicking the button next to that unit. Then type the value in to the box above the units, on the left side. All of the converted values will appear on the right side of the window.
The values of each unit of distance are seen in the left hand column under the heading Conversions. In the row for g (acceleration due to gravity on earth), we see that 1.00 m/s2 ft is 0.101972 g.
You also will see the abbreviation for each unit of measurement on the left hand side of the Conversion column.
iUnit can also convert between various major world currencies. These are broken up into two categories, the European Union currencies, and the rest of the world. The exchange rates between the EU currencies are fixed, while other currencies vary. Two text files contain these exchange rates, called euro.txt and currencies.txt respectively. You can manually update these files, or download a new currencies.txt file as often as necessary.
The URL to download a new file is ftp://ftp.engresource.com/pub/currencies.txt
Just replace the currencies.txt file with the new one, making sure it is in the same folder as the iUnit application.
Finding the values of physical constants is just as simple. Select the type of constant you're looking for from the Constants menu, and a listing appears.
