You access the Conversions Utility in the buttons bar above the NOTES field.

First you select one of the categories to work with, like AREA, LENGTH, SPEED, TIME, TEMPERATURE, VOLUME, WEIGHT or COMPUTER.
Then, select the units under the FROM column (those units will change based on the category) that you want to convert from, later select the unit under the TO column that you want to convert to.
Finally, click on
and see you answer in the RESULT
field.