It should take about 2 years to finish all of your pre-requisites, then about another 2 years to take the nursing courses. All of that is to get your Bachelor's in Nursing (BSN).
That depends on the student and the credit load carried per semester. Still, read the following.
Nursing is one of the most intensive and taxing programs of study an individual can hope to complete...
The three major educational paths to registered nursing are a bachelor's degree, an associate degree, and a diploma from an approved nursing program. Nurses most commonly enter the occupation by...