Out of 39 Grade Chart
Every possible score on a 39-question or 39-point test, quiz or assignment, with the percentage and letter grade. Each question is worth 2.56%.
A range (90%+)
36/39
Miss up to 3
B range (80%+)
32/39
Miss up to 7
C range (70%+)
28/39
Miss up to 11
D range (60%+)
24/39
Miss up to 15
| Score | Wrong | Percent | Letter | GPA |
|---|---|---|---|---|
| 39/39 | 0 | 100% | A+ | 4.0 |
| 38/39 | 1 | 97.44% | A+ | 4.0 |
| 37/39 | 2 | 94.87% | A | 4.0 |
| 36/39 | 3 | 92.31% | A- | 3.7 |
| 35/39 | 4 | 89.74% | B+ | 3.3 |
| 34/39 | 5 | 87.18% | B+ | 3.3 |
| 33/39 | 6 | 84.62% | B | 3.0 |
| 32/39 | 7 | 82.05% | B- | 2.7 |
| 31/39 | 8 | 79.49% | C+ | 2.3 |
| 30/39 | 9 | 76.92% | C | 2.0 |
| 29/39 | 10 | 74.36% | C | 2.0 |
| 28/39 | 11 | 71.79% | C- | 1.7 |
| 27/39 | 12 | 69.23% | D+ | 1.3 |
| 26/39 | 13 | 66.67% | D | 1.0 |
| 25/39 | 14 | 64.1% | D | 1.0 |
| 24/39 | 15 | 61.54% | D- | 0.7 |
| 23/39 | 16 | 58.97% | F | 0.0 |
| 22/39 | 17 | 56.41% | F | 0.0 |
| 21/39 | 18 | 53.85% | F | 0.0 |
| 20/39 | 19 | 51.28% | F | 0.0 |
| 19/39 | 20 | 48.72% | F | 0.0 |
| 18/39 | 21 | 46.15% | F | 0.0 |
| 17/39 | 22 | 43.59% | F | 0.0 |
| 16/39 | 23 | 41.03% | F | 0.0 |
| 15/39 | 24 | 38.46% | F | 0.0 |
| 14/39 | 25 | 35.9% | F | 0.0 |
| 13/39 | 26 | 33.33% | F | 0.0 |
| 12/39 | 27 | 30.77% | F | 0.0 |
| 11/39 | 28 | 28.21% | F | 0.0 |
| 10/39 | 29 | 25.64% | F | 0.0 |
| 9/39 | 30 | 23.08% | F | 0.0 |
| 8/39 | 31 | 20.51% | F | 0.0 |
| 7/39 | 32 | 17.95% | F | 0.0 |
| 6/39 | 33 | 15.38% | F | 0.0 |
| 5/39 | 34 | 12.82% | F | 0.0 |
| 4/39 | 35 | 10.26% | F | 0.0 |
| 3/39 | 36 | 7.69% | F | 0.0 |
| 2/39 | 37 | 5.13% | F | 0.0 |
| 1/39 | 38 | 2.56% | F | 0.0 |
| 0/39 | 39 | 0% | F | 0.0 |
How to calculate a grade out of 39
Percent = score ÷ 39 × 100
For example, 31 out of 39 is 31 ÷ 39 = 0.7949, × 100 = 79.49%, a C+. Every question you miss costs 2.56 percentage points, so the gap between letters is about 1 question.
Letters follow the standard U.S. plus/minus grading scale. If your teacher uses different cutoffs (like 93/85/77/70), build a custom chart with the EZ Grader. For a single score, the test grade calculator is quickest.
Common questions
What is 33 out of 39 as a percentage?
33/39 is 84.62%, which is a B on the standard U.S. grading scale (3.0 GPA points). That's 6 wrong. One more point (34/39) would make it a B+.
What is 31 out of 39 as a percentage?
31/39 is 79.49%, which is a C+ on the standard U.S. grading scale (2.3 GPA points). That's 8 wrong. One more point (32/39) would make it a B-.
What is 29 out of 39 as a percentage?
29/39 is 74.36%, which is a C on the standard U.S. grading scale (2.0 GPA points). That's 10 wrong. 2 more points (31/39) would make it a C+.
What is 38 out of 39 as a percentage?
38/39 is 97.44%, which is an A+ on the standard U.S. grading scale (4.0 GPA points). That's 1 wrong.
What is 37 out of 39 as a percentage?
37/39 is 94.87%, which is an A on the standard U.S. grading scale (4.0 GPA points). That's 2 wrong. One more point (38/39) would make it an A+.
How many can you miss out of 39 and still get an A?
You can miss 3 and still get at least 90% (an A-). 36/39 = 92.31%.