My daughter is in 6th grade and just had Algebra. Our high school district has 5 semesters of Calculus classes. Calculus A for her is 2nd semester 9th grade, Calculus BC is 10th grade. They do offer a college Calculus two semester course which isn't AP but can get college credit. The previous poster may be right that it could be a breeze but who knows. A better question may be is that you may run out of math classes to take by senior year.