How to Use the Percentage Score Converter
When a test or assignment isn't graded out of 100, it's hard to tell how well you actually did just by looking at the raw score. This calculator converts your raw score and maximum score into a percentage score out of 100, and shows the matching letter grade.
For example, scoring 42 out of 50 equals 84% — right in the same range as scoring 68 out of 80 (85%). Converting to a percentage lets you fairly compare scores from tests with completely different maximum points.
Grades follow a common absolute scale: 90%+ is A, 80%+ is B, 70%+ is C, 60%+ is D, and anything below is F. Actual grading policies vary by school or institution, so use this as a general reference.
Frequently Asked Questions
Divide the raw score by the maximum score, then multiply by 100. For example, 68 out of 80 gives (68÷80)×100 = 85%.
This tool uses a common scale: 90%+ is A, 80%+ is B, 70%+ is C, 60%+ is D, and below 60% is F. Actual grading scales vary by school or institution.
Yes. Converting each score to a percentage lets you compare tests fairly even when their maximum scores differ.