text: how can i determine gpa? i know my gpa on a 100 point scale...how can i convert it to a gpa on a 4.0 scale? divide by 25.  (edit: ok, maybe i'm not too bright - duh! let me rethink this and i'll provide a "re-edit.")  ((re-edit: ok, so let's assume you have the "90/80/70/60" scale:  >=90 - a 80-89.9999* - b 70-79.9999* - c 60-69.9999* - d <60 - f * - this could differ if you decide to round 89.5 up to 90 to eliminate decimal issues  in a perfect world, perhaps where there is a 100-point scale to separate the "90's" from the "98's," those who really kick butt would have a gpa more indicative of how they rank. as it is, with most 4-point scales, the "90's" have 4.0's just like the "98's," and that's not wholly fair. so, we'll say 100=4, 90=3, 80=2, 70=1, and 60=0. that would mean a more ideal 4-point scale (based on converting a 100-point scale) could result in the following equation:  gpa(4) = ([gpa(100) - 60]/10) + some factor to account for any rounding or where you set the grade boundaries (i.e. is 60 really going to get 0 grade points?)  what do you think? sorry for the simplistic answer i first provided - i obviously hadn't thought it through.))