Colegio are the first 12 years of study (starting at 6 y.o) or 13 in case of thechnicals school. University is the place where yo go to get profesional careers.

colegio = highschool ( 13 years to 17 or 18 yeras ) universidad = university

haha i've used colegio with some of my friends and they still thought that i was in college lol

HELLO. THE ANSWER IS THAT COLEGIO IS A HIGH SCHOOL AND UNIVERSIDAD IS MORE THAT BACHELOR, IS THE UNIVERSITY

colegio is the same that school in english and universidad is the same that university