What is 93.5 as an un-weighted GPA?

I m filling out a form that requires current gpa and the grade program I use doesn t show gpa so I calculated my gpa by adding all my grades together and dividing by the # of classes I have and I got 93.54. What does this translate into with a 0.0 to 4.0 gap system? (In case if it matters I m in middle school, 8th grade)