Scores Out of 51 as Percentages
Every possible score on a 51-question test or assignment, converted to a percentage and letter grade. Click any row to see the full worked calculation.
| Score | Percentage | Letter Grade | Wrong |
|---|---|---|---|
| 0/51 | 0% | F | 51 |
| 1/51 | 2% | F | 50 |
| 2/51 | 3.9% | F | 49 |
| 3/51 | 5.9% | F | 48 |
| 4/51 | 7.8% | F | 47 |
| 5/51 | 9.8% | F | 46 |
| 6/51 | 11.8% | F | 45 |
| 7/51 | 13.7% | F | 44 |
| 8/51 | 15.7% | F | 43 |
| 9/51 | 17.6% | F | 42 |
| 10/51 | 19.6% | F | 41 |
| 11/51 | 21.6% | F | 40 |
| 12/51 | 23.5% | F | 39 |
| 13/51 | 25.5% | F | 38 |
| 14/51 | 27.5% | F | 37 |
| 15/51 | 29.4% | F | 36 |
| 16/51 | 31.4% | F | 35 |
| 17/51 | 33.3% | F | 34 |
| 18/51 | 35.3% | F | 33 |
| 19/51 | 37.3% | F | 32 |
| 20/51 | 39.2% | F | 31 |
| 21/51 | 41.2% | F | 30 |
| 22/51 | 43.1% | F | 29 |
| 23/51 | 45.1% | F | 28 |
| 24/51 | 47.1% | F | 27 |
| 25/51 | 49% | F | 26 |
| 26/51 | 51% | F | 25 |
| 27/51 | 52.9% | F | 24 |
| 28/51 | 54.9% | F | 23 |
| 29/51 | 56.9% | F | 22 |
| 30/51 | 58.8% | F | 21 |
| 31/51 | 60.8% | D | 20 |
| 32/51 | 62.7% | D | 19 |
| 33/51 | 64.7% | D | 18 |
| 34/51 | 66.7% | D | 17 |
| 35/51 | 68.6% | D | 16 |
| 36/51 | 70.6% | C | 15 |
| 37/51 | 72.5% | C | 14 |
| 38/51 | 74.5% | C | 13 |
| 39/51 | 76.5% | C | 12 |
| 40/51 | 78.4% | C | 11 |
| 41/51 | 80.4% | B | 10 |
| 42/51 | 82.4% | B | 9 |
| 43/51 | 84.3% | B | 8 |
| 44/51 | 86.3% | B | 7 |
| 45/51 | 88.2% | B | 6 |
| 46/51 | 90.2% | A | 5 |
| 47/51 | 92.2% | A | 4 |
| 48/51 | 94.1% | A | 3 |
| 49/51 | 96.1% | A | 2 |
| 50/51 | 98% | A | 1 |
| 51/51 | 100% | A | 0 |
Grade a 51-Question Test
Use the Test Grade Calculator to interactively grade any 51-question test. Enter the number of questions wrong and get your score instantly, plus a printable grading-scale table.