To become a forensic pathologist it takes around 13 years of school or college education after you graduate high school.
To become a forensic pathologist you'll need to complete 4 years of medical school, 4 years of undergraduate school and then you'll need to complete 4 years of residency in anatomic and clinical pathology followed by one year of a forensic pathology fellowship
So all in all it takes 13 years of college and study to become a forensic pathologist but it can be well worth it it that's the career you want to get into and it will always be in demand.