Out of 15 Grade Chart
Every possible score on a 15-question or 15-point test, quiz or assignment, with the percentage and letter grade. Each question is worth 6.67%.
A range (90%+)
14/15
Miss up to 1
B range (80%+)
12/15
Miss up to 3
C range (70%+)
11/15
Miss up to 4
D range (60%+)
9/15
Miss up to 6
| Score | Wrong | Percent | Letter | GPA |
|---|---|---|---|---|
| 15/15 | 0 | 100% | A+ | 4.0 |
| 14/15 | 1 | 93.33% | A | 4.0 |
| 13/15 | 2 | 86.67% | B | 3.0 |
| 12/15 | 3 | 80% | B- | 2.7 |
| 11/15 | 4 | 73.33% | C | 2.0 |
| 10/15 | 5 | 66.67% | D | 1.0 |
| 9/15 | 6 | 60% | D- | 0.7 |
| 8/15 | 7 | 53.33% | F | 0.0 |
| 7/15 | 8 | 46.67% | F | 0.0 |
| 6/15 | 9 | 40% | F | 0.0 |
| 5/15 | 10 | 33.33% | F | 0.0 |
| 4/15 | 11 | 26.67% | F | 0.0 |
| 3/15 | 12 | 20% | F | 0.0 |
| 2/15 | 13 | 13.33% | F | 0.0 |
| 1/15 | 14 | 6.67% | F | 0.0 |
| 0/15 | 15 | 0% | F | 0.0 |
How to calculate a grade out of 15
Percent = score ÷ 15 × 100
For example, 12 out of 15 is 12 ÷ 15 = 0.8, × 100 = 80%, a B-. Every question you miss costs 6.67 percentage points, so the gap between letters is often a single 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 13 out of 15 as a percentage?
13/15 is 86.67%, which is a B on the standard U.S. grading scale (3.0 GPA points). That's 2 wrong. One more point (14/15) would make it a B+.
What is 12 out of 15 as a percentage?
12/15 is 80%, which is a B- on the standard U.S. grading scale (2.7 GPA points). That's 3 wrong. One more point (13/15) would make it a B.
What is 11 out of 15 as a percentage?
11/15 is 73.33%, which is a C on the standard U.S. grading scale (2.0 GPA points). That's 4 wrong. One more point (12/15) would make it a C+.
What is 14 out of 15 as a percentage?
14/15 is 93.33%, which is an A on the standard U.S. grading scale (4.0 GPA points). That's 1 wrong. One more point (15/15) would make it an A+.
How many can you miss out of 15 and still get an A?
You can miss 1 and still get at least 90% (an A-). 14/15 = 93.33%.