If you need to calculate something, just type the calculation in Fingertips and see the result appear immediately.

The built-in calculator recognizes the following characters: +-*/%1234567890().
Fingertips will immediately show the result of the calculation. If it cannot evaluate the expression, it will display '???'.
If Fingertips does not recognize the text as a calculation right away, you may want to put a plus sign (+), a minus sign (-) or an opening brace in front of your calculation.