Grade calculator for a 38-question test
On a 38-question test, each question is worth 2.63% and you can miss 3 for an A, 7 for a B, 11 for a C and 15 for a D (common 90/80/70/60 scale). One wrong answer is 97.4%.
38-question test grade chart
Score for every number of wrong answers, rounded to one decimal.
| Wrong | Right | Score | Letter |
|---|---|---|---|
| 0 | 38 | 100.0% | A |
| 1 | 37 | 97.4% | A |
| 2 | 36 | 94.7% | A |
| 3 | 35 | 92.1% | A |
| 4 | 34 | 89.5% | B |
| 5 | 33 | 86.8% | B |
| 6 | 32 | 84.2% | B |
| 7 | 31 | 81.6% | B |
| 8 | 30 | 78.9% | C |
| 9 | 29 | 76.3% | C |
| 10 | 28 | 73.7% | C |
| 11 | 27 | 71.1% | C |
| 12 | 26 | 68.4% | D |
| 13 | 25 | 65.8% | D |
| 14 | 24 | 63.2% | D |
| 15 | 23 | 60.5% | D |
| 16 | 22 | 57.9% | F |
| 17 | 21 | 55.3% | F |
| 18 | 20 | 52.6% | F |
| 19 | 19 | 50.0% | F |
| 20 | 18 | 47.4% | F |
| 21 | 17 | 44.7% | F |
| 22 | 16 | 42.1% | F |
| 23 | 15 | 39.5% | F |
| 24 | 14 | 36.8% | F |
| 25 | 13 | 34.2% | F |
| 26 | 12 | 31.6% | F |
| 27 | 11 | 28.9% | F |
| 28 | 10 | 26.3% | F |
| 29 | 9 | 23.7% | F |
| 30 | 8 | 21.1% | F |
| 31 | 7 | 18.4% | F |
| 32 | 6 | 15.8% | F |
| 33 | 5 | 13.2% | F |
| 34 | 4 | 10.5% | F |
| 35 | 3 | 7.9% | F |
| 36 | 2 | 5.3% | F |
| 37 | 1 | 2.6% | F |
| 38 | 0 | 0.0% | F |
The math: score = right answers ÷ 38 × 100. Each question is 100 ÷ 38 = 2.63 percentage points, so every wrong answer takes 2.63 points off a perfect 100%. Letters use the common 90/80/70/60 scale with no rounding up; your teacher may use different cutoffs, plus and minus grades or a curve, so check your school’s grading policy.