For some students, an average of 2.8 GPA per semester in your class should be good enough.
However, if graduate school or an honors program is your target, you should aim for a grade higher than 3.15.
Many employers, would consider graduates with a 3.0 GPA.
If you want to maintain a good GPA, you can use a GPA calculator to know the grade you need to maintain. With this calculator, GPA grades tracking takes out the tedious part of manually computing it.