How many classes do you need to take to be considered a full-time student?

You need to take 12 credit hours to be considered a full-time undergraduate student. As most classes are three or four credit hours, that means you will likely need to take three or four classes per semester. Some labs are more credit hours, meaning that you could take fewer classes if you take a class that includes lab time.

If you're a graduate student, you need nine credit hours to be considered full-time. Graduate classes are often more involved and specialized, meaning that they require more time and work. It's also understood that most graduate students have other obligations, such as work or family.