Test Score Calculator
Enter the number of questions you got correct and the total number of questions to instantly see your percentage score and an approximate letter grade.
How the Test Score formula works
The percentage score:
Score% = (Correct answers / Total questions) × 100
The letter grade is then read from a standard 10-point scale (90–100 = A, 80–89 = B, and so on), though exact cutoffs vary by school and instructor.
Step-by-step calculation
- Divide the number correct by the total number of questions.
- Multiply by 100 to get a percentage.
- Compare the percentage against a standard letter-grade scale.
Worked example
37 correct out of 40 questions: Score = (37/40) × 100 = 92.5%, which falls in the A range on a standard 10-point scale.
Frequently asked questions
Do all schools use the same letter grade cutoffs?
No — this calculator uses a common standard 10-point scale (90/80/70/60), but many schools and instructors use different cutoffs, plus/minus grades, or entirely different scales, so check your syllabus for the exact scale that applies.
How is this different from the GPA calculator?
This calculator converts a single raw score (like a test or quiz) into a percentage and letter grade. The GPA calculator combines multiple already-graded courses, weighted by credit hours, into one overall average.