📝 Test Grade Percentage Calculator
Calculate test score percentages, letter grades (A+ to F), and GPA equivalents based on questions missed. View full grading scale chart instantly.
Free No Signup Required Browser-Based
Test Score Percentage
86.7%
Letter Grade: B (GPA: 3.0)
26 of 30 correct (4 missed)Grading Scale for 30 Questions
| Questions Missed | Correct Answers | Grade Percentage |
|---|---|---|
| 0 wrong | 30 / 30 | 100.0% |
| 1 wrong | 29 / 30 | 96.7% |
| 2 wrong | 28 / 30 | 93.3% |
| 3 wrong | 27 / 30 | 90.0% |
| 4 wrong 👈 (Your Score) | 26 / 30 | 86.7% |
| 5 wrong | 25 / 30 | 83.3% |
| 6 wrong | 24 / 30 | 80.0% |
| 7 wrong | 23 / 30 | 76.7% |
| 8 wrong | 22 / 30 | 73.3% |
| 9 wrong | 21 / 30 | 70.0% |
| 10 wrong | 20 / 30 | 66.7% |
How to Use Test Grade Percentage Calculator
- Enter total number of test questions
- Input how many questions were answered incorrectly or missed
- Instantly view your score percentage, letter grade, GPA score, and test grading chart
📖 Technical Encyclopedia & Standards Reference
Calculate test score percentages, letter grades (A+ to F), and GPA equivalents based on questions missed. View full grading scale chart instantly. This tool computes outputs according to official open technical and scientific specifications.
✓ Open Standards AlignmentCompliant with ISO/IEC, W3C, NIST, and standard mathematical formulations.
✓ 100% Client-Side / SecureZero server logging. Computations execute entirely in your local browser sandbox.
Explore more formulas in our Tools Encyclopedia & Glossary →
Frequently Asked Questions
How is a test percentage calculated from questions missed?
Grade Percentage = [(Total Questions - Questions Missed) / Total Questions] × 100.
What is the standard letter grade threshold in high school and college?
Standard grading scales: 90%–100% is an A, 80%–89% is a B, 70%–79% is a C, 60%–69% is a D, and below 60% is an F.