<p>You’ll need to take at least 4 semesters of calculus total. If you get a 5 on BC, you likely can get out of at least one semester. But a lot of colleges make you take higher level courses, like diff eq or numerical analysis, if you place out of easier courses.</p>
<p>Point is, some people don’t manifest their AP credits if they don’t want to be forced to take upper level courses. Or if they know a freshman calc professor is really good.</p>