School Calculators

Calculators for students, parents and teachers who need to work out grades and averages. Each one follows the way US high schools and colleges usually count: the 4.0 grade-point scale, credit hours, and Honors or AP weighting.

Schools don't all use the same rules. Some give 4.3 for an A+, some weight Honors and AP classes differently, and colleges often recalculate GPA their own way. So every page shows the scale it uses and the working behind the answer, and you can check it against your school's handbook.

Key formulas