Considering the Time it Takes To Earn a Bachelor’s Degree. If you know the route that you plan on taking before you even enter an undergraduate program, you need to consider the time it takes to earn your Bachelor’s degree. A Bachelor’s degree is the most common prerequisite to enter any Master’s degree or MBA program with any public or private institution. Bachelor’s degree programs range between 120 credit hours and 150 credit hours. Depending on the credit hours required, it can take 4 to 5 years, on a full-time basis, to earn your undergraduate degree. It could extend the time span if you are enrolled part time. Completing a Master’s Degree Program. Your major, the school, and the program that you choose will all affect the time period that it takes to earn your Master’s.