How do you figure your GPA on a hiset score?

Oh honey, if you're trying to calculate your GPA from a HiSET score, you're barking up the wrong tree. HiSET scores are for high school equivalency, not for GPA calculations. It's like trying to make a margarita with a hammer - just doesn't work. If you want to know your GPA, you'll need to look at your actual grades from school, not your HiSET score.