10 Wrong Out of 100 — What Grade?
90% — A
- Score
- 90%
- Letter grade
- A
- Questions correct
- 90 / 100
- Questions wrong
- 10 / 100
Dropping 10 questions on a 100-question test still leaves 90 correct and a 90% — an A. On a 100-question test each question is worth exactly 1%, making the math refreshingly simple: your wrong count equals your points lost. The A/B boundary sits at exactly 10 wrong; 11 wrong drops to 89% (B). The EZ-grader table below is especially useful for final exams in this format.
Test Grade Calculator
Enter the number of questions correct or wrong and instantly see your percentage score, letter grade, and a full EZ-grader reference table.
- Letter grade
- A
- Total questions
- 20
Calculator
EZ-grader reference table
| Wrong | Score | Grade |
|---|---|---|
| 0 | 100% | A |
| 1 | 95% | A |
| 2 | 90% | A |
| 3 | 85% | B |
| 4 | 80% | B |
| 5 | 75% | C |
| 6 | 70% | C |
| 7 | 65% | D |
| 8 | 60% | D |
| 9 | 55% | F |
| 10 | 50% | F |
| 11 | 45% | F |
| 12 | 40% | F |
| 13 | 35% | F |
| 14 | 30% | F |
| 15 | 25% | F |
| 16 | 20% | F |
| 17 | 15% | F |
| 18 | 10% | F |
| 19 | 5% | F |
| 20 | 0% | F |
How it's calculated
The percentage score is computed as percent = (correct / total) × 100 + curvePts, clamped to the interval [0, 100]. The letter grade is then assigned using the standard five-band scale: a percentage of 90 or above earns an A, 80–89 a B, 70–79 a C, 60–69 a D, and anything below 60 an F. These cutoffs are consistent across the two authoritative references used for this calculator: the Calculator.net EZ-grader tool and the ThoughtCo grade-percentage guide. The full reference table is generated by iterating wrong from 0 to total, computing correct = total − wrong for each step, and applying the same formula to produce a row of (wrong, percent, letter) for every possible outcome.
Sources
Reviewed by the YouCalc Team · Last reviewed
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