How many years does it take to upgrade from associate degree to bachelor degree?

2-3 years.

In fact, there are two types of junior college to bachelor's degree. Generally speaking, it only takes two years to study for junior college to bachelor's degree before you can successfully graduate and get an undergraduate diploma. However, some individual majors require three years of study. of. If you have the opportunity, you should try your best to upgrade your academic qualifications to a bachelor's degree or above, so as not to affect your promotion. The junior college-to-bachelor-level examination for ordinary colleges and universities, referred to as "junior college-to-bachelor's degree", is a selective examination for qualified ordinary college and university graduates and previous junior college graduates.