Out of 40 Grade Chart
Every possible score on a 40-question or 40-point test, quiz or assignment, with the percentage and letter grade. Each question is worth 2.5%.
A range (90%+)
36/40
Miss up to 4
B range (80%+)
32/40
Miss up to 8
C range (70%+)
28/40
Miss up to 12
D range (60%+)
24/40
Miss up to 16
| Score | Wrong | Percent | Letter | GPA |
|---|---|---|---|---|
| 40/40 | 0 | 100% | A+ | 4.0 |
| 39/40 | 1 | 97.5% | A+ | 4.0 |
| 38/40 | 2 | 95% | A | 4.0 |
| 37/40 | 3 | 92.5% | A- | 3.7 |
| 36/40 | 4 | 90% | A- | 3.7 |
| 35/40 | 5 | 87.5% | B+ | 3.3 |
| 34/40 | 6 | 85% | B | 3.0 |
| 33/40 | 7 | 82.5% | B- | 2.7 |
| 32/40 | 8 | 80% | B- | 2.7 |
| 31/40 | 9 | 77.5% | C+ | 2.3 |
| 30/40 | 10 | 75% | C | 2.0 |
| 29/40 | 11 | 72.5% | C- | 1.7 |
| 28/40 | 12 | 70% | C- | 1.7 |
| 27/40 | 13 | 67.5% | D+ | 1.3 |
| 26/40 | 14 | 65% | D | 1.0 |
| 25/40 | 15 | 62.5% | D- | 0.7 |
| 24/40 | 16 | 60% | D- | 0.7 |
| 23/40 | 17 | 57.5% | F | 0.0 |
| 22/40 | 18 | 55% | F | 0.0 |
| 21/40 | 19 | 52.5% | F | 0.0 |
| 20/40 | 20 | 50% | F | 0.0 |
| 19/40 | 21 | 47.5% | F | 0.0 |
| 18/40 | 22 | 45% | F | 0.0 |
| 17/40 | 23 | 42.5% | F | 0.0 |
| 16/40 | 24 | 40% | F | 0.0 |
| 15/40 | 25 | 37.5% | F | 0.0 |
| 14/40 | 26 | 35% | F | 0.0 |
| 13/40 | 27 | 32.5% | F | 0.0 |
| 12/40 | 28 | 30% | F | 0.0 |
| 11/40 | 29 | 27.5% | F | 0.0 |
| 10/40 | 30 | 25% | F | 0.0 |
| 9/40 | 31 | 22.5% | F | 0.0 |
| 8/40 | 32 | 20% | F | 0.0 |
| 7/40 | 33 | 17.5% | F | 0.0 |
| 6/40 | 34 | 15% | F | 0.0 |
| 5/40 | 35 | 12.5% | F | 0.0 |
| 4/40 | 36 | 10% | F | 0.0 |
| 3/40 | 37 | 7.5% | F | 0.0 |
| 2/40 | 38 | 5% | F | 0.0 |
| 1/40 | 39 | 2.5% | F | 0.0 |
| 0/40 | 40 | 0% | F | 0.0 |
How to calculate a grade out of 40
Percent = score ÷ 40 × 100
For example, 32 out of 40 is 32 ÷ 40 = 0.8, × 100 = 80%, a B-. Every question you miss costs 2.5 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 34 out of 40 as a percentage?
34/40 is 85%, which is a B on the standard U.S. grading scale (3.0 GPA points). That's 6 wrong. One more point (35/40) would make it a B+.
What is 32 out of 40 as a percentage?
32/40 is 80%, which is a B- on the standard U.S. grading scale (2.7 GPA points). That's 8 wrong. 2 more points (34/40) would make it a B.
What is 30 out of 40 as a percentage?
30/40 is 75%, which is a C on the standard U.S. grading scale (2.0 GPA points). That's 10 wrong. One more point (31/40) would make it a C+.
What is 39 out of 40 as a percentage?
39/40 is 97.5%, which is an A+ on the standard U.S. grading scale (4.0 GPA points). That's 1 wrong.
What is 38 out of 40 as a percentage?
38/40 is 95%, which is an A on the standard U.S. grading scale (4.0 GPA points). That's 2 wrong. One more point (39/40) would make it an A+.
How many can you miss out of 40 and still get an A?
You can miss 4 and still get at least 90% (an A-). 36/40 = 90%.