think it only reflects the effort you put into being a good student.
Plenty of very smart people with lousy gpa's because they just don't want to do the work.GPA reflects your motivation to strive to do the best. Your courses show what ability or skill level you are at.
You could be quite an intelligent person, but if you don't have the drive or determination to get a 4.0 than that will show in a lower GPA. If you are will to study for a few hours or get a tutor then your GPA or grades should reflect the work that you put into your studies. If you want to calculate your GPA ,then use this GPA Calculator to get instant calculation of your Grade Point Average.