Out of 45 Grade Chart
Every possible score on a 45-question or 45-point test, quiz or assignment, with the percentage and letter grade. Each question is worth 2.22%.
A range (90%+)
41/45
Miss up to 4
B range (80%+)
36/45
Miss up to 9
C range (70%+)
32/45
Miss up to 13
D range (60%+)
27/45
Miss up to 18
| Score | Wrong | Percent | Letter | GPA |
|---|---|---|---|---|
| 45/45 | 0 | 100% | A+ | 4.0 |
| 44/45 | 1 | 97.78% | A+ | 4.0 |
| 43/45 | 2 | 95.56% | A | 4.0 |
| 42/45 | 3 | 93.33% | A | 4.0 |
| 41/45 | 4 | 91.11% | A- | 3.7 |
| 40/45 | 5 | 88.89% | B+ | 3.3 |
| 39/45 | 6 | 86.67% | B | 3.0 |
| 38/45 | 7 | 84.44% | B | 3.0 |
| 37/45 | 8 | 82.22% | B- | 2.7 |
| 36/45 | 9 | 80% | B- | 2.7 |
| 35/45 | 10 | 77.78% | C+ | 2.3 |
| 34/45 | 11 | 75.56% | C | 2.0 |
| 33/45 | 12 | 73.33% | C | 2.0 |
| 32/45 | 13 | 71.11% | C- | 1.7 |
| 31/45 | 14 | 68.89% | D+ | 1.3 |
| 30/45 | 15 | 66.67% | D | 1.0 |
| 29/45 | 16 | 64.44% | D | 1.0 |
| 28/45 | 17 | 62.22% | D- | 0.7 |
| 27/45 | 18 | 60% | D- | 0.7 |
| 26/45 | 19 | 57.78% | F | 0.0 |
| 25/45 | 20 | 55.56% | F | 0.0 |
| 24/45 | 21 | 53.33% | F | 0.0 |
| 23/45 | 22 | 51.11% | F | 0.0 |
| 22/45 | 23 | 48.89% | F | 0.0 |
| 21/45 | 24 | 46.67% | F | 0.0 |
| 20/45 | 25 | 44.44% | F | 0.0 |
| 19/45 | 26 | 42.22% | F | 0.0 |
| 18/45 | 27 | 40% | F | 0.0 |
| 17/45 | 28 | 37.78% | F | 0.0 |
| 16/45 | 29 | 35.56% | F | 0.0 |
| 15/45 | 30 | 33.33% | F | 0.0 |
| 14/45 | 31 | 31.11% | F | 0.0 |
| 13/45 | 32 | 28.89% | F | 0.0 |
| 12/45 | 33 | 26.67% | F | 0.0 |
| 11/45 | 34 | 24.44% | F | 0.0 |
| 10/45 | 35 | 22.22% | F | 0.0 |
| 9/45 | 36 | 20% | F | 0.0 |
| 8/45 | 37 | 17.78% | F | 0.0 |
| 7/45 | 38 | 15.56% | F | 0.0 |
| 6/45 | 39 | 13.33% | F | 0.0 |
| 5/45 | 40 | 11.11% | F | 0.0 |
| 4/45 | 41 | 8.89% | F | 0.0 |
| 3/45 | 42 | 6.67% | F | 0.0 |
| 2/45 | 43 | 4.44% | F | 0.0 |
| 1/45 | 44 | 2.22% | F | 0.0 |
| 0/45 | 45 | 0% | F | 0.0 |
How to calculate a grade out of 45
Percent = score ÷ 45 × 100
For example, 36 out of 45 is 36 ÷ 45 = 0.8, × 100 = 80%, a B-. Every question you miss costs 2.22 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 38 out of 45 as a percentage?
38/45 is 84.44%, which is a B on the standard U.S. grading scale (3.0 GPA points). That's 7 wrong. 2 more points (40/45) would make it a B+.
What is 36 out of 45 as a percentage?
36/45 is 80%, which is a B- on the standard U.S. grading scale (2.7 GPA points). That's 9 wrong. 2 more points (38/45) would make it a B.
What is 34 out of 45 as a percentage?
34/45 is 75.56%, which is a C on the standard U.S. grading scale (2.0 GPA points). That's 11 wrong. One more point (35/45) would make it a C+.
What is 44 out of 45 as a percentage?
44/45 is 97.78%, which is an A+ on the standard U.S. grading scale (4.0 GPA points). That's 1 wrong.
What is 43 out of 45 as a percentage?
43/45 is 95.56%, which is an A on the standard U.S. grading scale (4.0 GPA points). That's 2 wrong. One more point (44/45) would make it an A+.
How many can you miss out of 45 and still get an A?
You can miss 4 and still get at least 90% (an A-). 41/45 = 91.11%.