Grade Chart for a 21-Question Test
On a 21-question test, each question is worth about 4.8%. A student can miss up to 2 questions and still get an A, 4 for a B, 6 for a C, and 8 for a D. To pass at 60%, a student needs at least 13 correct.
Grade a stack of tests faster — open the free Easy Grade grader| Wrong | Correct | Percent | Grade |
|---|---|---|---|
| 0 | 21 | 100.0% | A |
| 1 | 20 | 95.2% | A |
| 2 | 19 | 90.5% | A |
| 3 | 18 | 85.7% | B |
| 4 | 17 | 81.0% | B |
| 5 | 16 | 76.2% | C |
| 6 | 15 | 71.4% | C |
| 7 | 14 | 66.7% | D |
| 8 | 13 | 61.9% | D |
| 9 | 12 | 57.1% | F |
| 10 | 11 | 52.4% | F |
| 11 | 10 | 47.6% | F |
| 12 | 9 | 42.9% | F |
| 13 | 8 | 38.1% | F |
| 14 | 7 | 33.3% | F |
| 15 | 6 | 28.6% | F |
| 16 | 5 | 23.8% | F |
| 17 | 4 | 19.0% | F |
| 18 | 3 | 14.3% | F |
| 19 | 2 | 9.5% | F |
| 20 | 1 | 4.8% | F |
| 21 | 0 | 0.0% | F |
Made with Easy Grade — easygradeapp.com
How is this calculated?
Each question is worth 100 ÷ 21, which is about 4.8%. To score a test, divide the number correct by 21 and multiply by 100.
A student who misses 3 gets 18 correct, so the score is 18 ÷ 21 × 100 = 85.7%, which is a B.
Letter grades use this scale: A 90–100, B 80–89.9, C 70–79.9, D 60–69.9, F below 60.
Gave partial credit? See the half-point chart
Half-point grading lets you take off half a point for an answer that's partly right. A cardboard EZ Grader can't do it, because it only counts whole numbers wrong. Easy Grade Premium can, at any test size.
| Wrong | Correct | Percent | Grade |
|---|---|---|---|
| 0.5 | 20.5 | 97.6% | A |
| 1.5 | 19.5 | 92.9% | A |
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