Grade calculator for a 12-question test
On a 12-question test, each question is worth 8.33% and you can miss 1 for an A, 2 for a B, 3 for a C and 4 for a D (common 90/80/70/60 scale). One wrong answer is 91.7%.
12-question test grade chart
Score for every number of wrong answers, rounded to one decimal.
| Wrong | Right | Score | Letter |
|---|---|---|---|
| 0 | 12 | 100.0% | A |
| 1 | 11 | 91.7% | A |
| 2 | 10 | 83.3% | B |
| 3 | 9 | 75.0% | C |
| 4 | 8 | 66.7% | D |
| 5 | 7 | 58.3% | F |
| 6 | 6 | 50.0% | F |
| 7 | 5 | 41.7% | F |
| 8 | 4 | 33.3% | F |
| 9 | 3 | 25.0% | F |
| 10 | 2 | 16.7% | F |
| 11 | 1 | 8.3% | F |
| 12 | 0 | 0.0% | F |
The math: score = right answers ÷ 12 × 100. Each question is 100 ÷ 12 = 8.33 percentage points, so every wrong answer takes 8.33 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.