Average High School GPA Is From 2.80 To Almost 3.5 To Get Into the Top USA And Canada Colleges And Schools. Above 3.0 Consider To Be Very Good Average GPA To Get. If You Need To Use The Best High School GPA Calculator Then Here Here Is The Best One. So What Does This GPA Calculator. It Has Feature Of Weighted GPA Calculation And Unweighted GPA Calculation With Both High School Grade Scale And College GPA Grade Scale 4.0 Scale And 4.3 Grading Scale. Check This Tool Too SAT Calculator Weighted GPA Is The Calculation Of You Overall Advanced Classes Like Honors, AP/IB, And College While Unweighted GPA Just Will Give Your Regular GPA. College GPA Calculator, Middle School GPA Calculator, Cumulative GPA Calculator With CGPA Calculator.