I recently transferred schools from another institution. When applying to medical school, how are my separate GPAs accounted for? Do they use some standardized method to calculate an overall GPA?
Yes, AMCAS calculates it's own GPA which is what med schools see. It uses a pretty standard conversion A+/A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0 etc. If one of your schools does not use plus/minus grading, those courses will instead all go in as A = 4, B = 3, C= 2