# How Can I Calculate my GPA Myself for College?

I want to know how can I calculate my college GPA. I've tried to calculate it with GPA calculators, but they all have a + or - grading scale, which is not what my college does, so I'm having trouble to do it myself and I can't find any help. The one I need should be done according to the number of credit hours correspondent to each class. Does anyone know a method to calculate my GPA myself for college taking into account the specifications I've just made?