If you need help calculating your high school homeschooler's GPA this link will do it for you.
You can use it to determine overall GPA and your weighted GPA. I checked it against the GPA's I had already painstakingly figured out on my own, and they were the same. I have seen others online, but this calculates, + and - and 1 credit and .5 credit classes.
~posted by Andrea from Notes from a Homeschooling Mom