Test Score Calculator
Calculate your test score as a percentage from correct answers and total questions. See the corresponding letter grade.
How to Use the Test Score Calculator
- Enter the number of correct answers.
- Enter the total number of questions.
- Click Calculate to see your percentage score and letter grade.
Quick Reference
| From | To |
|---|---|
| 18/20 | 90% — A |
| 16/20 | 80% — B |
| 14/20 | 70% — C |
| 12/20 | 60% — D |
| 10/20 | 50% — F |
Use Cases
- •Quickly grading a paper or quiz.
- •Checking whether a score meets a passing threshold.
- •Converting raw scores to percentages for report cards.
Formula
Score (%) = (Correct / Total) × 100. Letter: A ≥ 90%, B ≥ 80%, C ≥ 70%, D ≥ 60%, F < 60%.
Frequently Asked Questions
Does this support partial credit?
Not directly — enter the total points earned as 'correct' and total possible as 'total' for partial credit.
What grading scale is used?
The standard US letter-grade scale: A (90+), B (80+), C (70+), D (60+), F (below 60).
Is this calculator free?
Yes, all OhMyCalc tools are completely free.