Calculus II is not much harder than Calculus I. In my opinion, it’s just a continuation of Calculus I by adding intuitive concepts and applications, such as integral tests, improper integrals, arc length formula, and integration by parts.Click to see full answer. Similarly one may ask, which calculus is the hardest?In a poll of 140 past and present calculus students, the overwhelming consensus (72% of pollers) is that Calculus 3 is indeed the hardest Calculus class. This is contrary to the popular belief that Calculus 2 is the hardest Calculus class.Likewise, is Calculus 3 harder than calculus 2? Calculus 2 is harder for its content. As a class however, Calculus 3 was much more difficult. Because, Calculus II is made up of concepts that you will learn and never unlearn. Also to know is, is Calculus 1 or 2 harder? Calc 2 is easier because are not nearly as dramatically new concepts as in calc 1. I found calc 2 to be much more difficult than calc 1, only because there was SO much memorization involved. The concepts were easy, but trying to memorize the list of common antiderivatives was hell.Does Calc 2 get easier?So, Calculus II isn’t even the most difficult calculus course, let alone the most difficult math course. The most difficult math courses I have encountered thus far have included advanced calculus, abstract algebra, and topology (and they will generally only continue to get more challenging each semester).