College credit is a measure of the amount of coursework a student has completed at a college or university. Typically, one credit hour represents one hour of classroom instruction per week over a semester. Students earn credits by successfully completing courses, which contribute to their progress toward a degree. Accumulating enough college credits is essential for graduation. Most degree programs require a specific number of credits, often ranging from 120 to 180, depending on the degree type. Students can also earn credits through advanced placement exams, dual enrollment programs, or transferring credits from other institutions.