Out of 28 Grade Chart
Every possible score on a 28-question or 28-point test, quiz or assignment, with the percentage and letter grade. Each question is worth 3.57%.
A range (90%+)
26/28
Miss up to 2
B range (80%+)
23/28
Miss up to 5
C range (70%+)
20/28
Miss up to 8
D range (60%+)
17/28
Miss up to 11
| Score | Wrong | Percent | Letter | GPA |
|---|---|---|---|---|
| 28/28 | 0 | 100% | A+ | 4.0 |
| 27/28 | 1 | 96.43% | A | 4.0 |
| 26/28 | 2 | 92.86% | A- | 3.7 |
| 25/28 | 3 | 89.29% | B+ | 3.3 |
| 24/28 | 4 | 85.71% | B | 3.0 |
| 23/28 | 5 | 82.14% | B- | 2.7 |
| 22/28 | 6 | 78.57% | C+ | 2.3 |
| 21/28 | 7 | 75% | C | 2.0 |
| 20/28 | 8 | 71.43% | C- | 1.7 |
| 19/28 | 9 | 67.86% | D+ | 1.3 |
| 18/28 | 10 | 64.29% | D | 1.0 |
| 17/28 | 11 | 60.71% | D- | 0.7 |
| 16/28 | 12 | 57.14% | F | 0.0 |
| 15/28 | 13 | 53.57% | F | 0.0 |
| 14/28 | 14 | 50% | F | 0.0 |
| 13/28 | 15 | 46.43% | F | 0.0 |
| 12/28 | 16 | 42.86% | F | 0.0 |
| 11/28 | 17 | 39.29% | F | 0.0 |
| 10/28 | 18 | 35.71% | F | 0.0 |
| 9/28 | 19 | 32.14% | F | 0.0 |
| 8/28 | 20 | 28.57% | F | 0.0 |
| 7/28 | 21 | 25% | F | 0.0 |
| 6/28 | 22 | 21.43% | F | 0.0 |
| 5/28 | 23 | 17.86% | F | 0.0 |
| 4/28 | 24 | 14.29% | F | 0.0 |
| 3/28 | 25 | 10.71% | F | 0.0 |
| 2/28 | 26 | 7.14% | F | 0.0 |
| 1/28 | 27 | 3.57% | F | 0.0 |
| 0/28 | 28 | 0% | F | 0.0 |
How to calculate a grade out of 28
Percent = score ÷ 28 × 100
For example, 22 out of 28 is 22 ÷ 28 = 0.7857, × 100 = 78.57%, a C+. Every question you miss costs 3.57 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 24 out of 28 as a percentage?
24/28 is 85.71%, which is a B on the standard U.S. grading scale (3.0 GPA points). That's 4 wrong. One more point (25/28) would make it a B+.
What is 22 out of 28 as a percentage?
22/28 is 78.57%, which is a C+ on the standard U.S. grading scale (2.3 GPA points). That's 6 wrong. One more point (23/28) would make it a B-.
What is 21 out of 28 as a percentage?
21/28 is 75%, which is a C on the standard U.S. grading scale (2.0 GPA points). That's 7 wrong. One more point (22/28) would make it a C+.
What is 27 out of 28 as a percentage?
27/28 is 96.43%, which is an A on the standard U.S. grading scale (4.0 GPA points). That's 1 wrong. One more point (28/28) would make it an A+.
What is 26 out of 28 as a percentage?
26/28 is 92.86%, which is an A- on the standard U.S. grading scale (3.7 GPA points). That's 2 wrong. One more point (27/28) would make it an A.
How many can you miss out of 28 and still get an A?
You can miss 2 and still get at least 90% (an A-). 26/28 = 92.86%.