<p>If your school uses a quarter system, then generally for each course (intro bio, gen chem, ochem, etc) you’ll need 3 quarters of that course.</p>
<p>Rule of thumb:</p>
<p>1 year = 2 semesters = 3 quarters</p>
<p>Don’t go by credits since this is highly variable from college to college. (For example, I’ve seen 1 semester of OChem weighted as anywhere from 1 credit to 5 credits.)</p>