What is a "good" grade in calculus 1-3? I realize that good is relative. Hopefully I will pursue a PhD in math one day. Is there a certain grade that will tell me whether I am capable of doing this, or at least on the right track? I also realize that not all grades are created equal, some professors and universities are easier or harder than others. But in general, what is a grade that I should aim for? The calculus series I will be taking starts with basic differentiation and goes all the way up to multiple integration and vector analysis. I know that this is a somewhat strange question, but it's always good to have some sort of goal to work towards.