difference between weighted and unweighted gpa

How do I convert my unweighted gpa to a weighted gpa. I see alot of stats that are above 4.0…how do I convert to weighted. Is this all guess work depending on the university/college?

It depends where you are applying, but try this: Calculate your average using all of your classes, but make the honors and AP worth 5 points. Another way is to make the honors 5 but AP 6.

applying at UF, so what do you think