34 out of 40 as a Grade: Chart for a 40-Question Test
Quick answer: 34 out of 40 is 85%, a B. 31 out of 40 is 77.5%, a C+.
Each question on a 40-question test is worth 2.5%. You can miss up to 4 and keep an A- (90%).
Standard plus/minus scale. Last reviewed: October 2026.
Popular scores on a 40-question test
The scores people look up most, on the plus/minus scale and on a plain 10-point scale (A starts at 90%).
ezgradercalc.com · 40-question grading chart · standard plus/minus scale
EZ Grader Chart: Every Score on a 40-Question Test
Find the number correct in the first column and read the percentage and letter grade in the same row. Use this easy grader chart for a whole stack of papers with the same number of questions.
| Score | Wrong | Percentage | Letter |
|---|---|---|---|
| 40 out of 40 | 0 | 100% | A+ |
| 39 out of 40 | 1 | 97.5% | A+ |
| 38 out of 40 | 2 | 95% | A |
| 37 out of 40 | 3 | 92.5% | A- |
| 36 out of 40 | 4 | 90% | A- |
| 35 out of 40 | 5 | 87.5% | B+ |
| 34 out of 40 | 6 | 85% | B |
| 33 out of 40 | 7 | 82.5% | B- |
| 32 out of 40 | 8 | 80% | B- |
| 31 out of 40 | 9 | 77.5% | C+ |
| 30 out of 40 | 10 | 75% | C |
| 29 out of 40 | 11 | 72.5% | C- |
| 28 out of 40 | 12 | 70% | C- |
| 27 out of 40 | 13 | 67.5% | D+ |
| 26 out of 40 | 14 | 65% | D |
| 25 out of 40 | 15 | 62.5% | D- |
| 24 out of 40 | 16 | 60% | D- |
| 23 out of 40 | 17 | 57.5% | F |
| 22 out of 40 | 18 | 55% | F |
| 21 out of 40 | 19 | 52.5% | F |
| 20 out of 40 | 20 | 50% | F |
| 19 out of 40 | 21 | 47.5% | F |
| 18 out of 40 | 22 | 45% | F |
| 17 out of 40 | 23 | 42.5% | F |
| 16 out of 40 | 24 | 40% | F |
| 15 out of 40 | 25 | 37.5% | F |
| 14 out of 40 | 26 | 35% | F |
| 13 out of 40 | 27 | 32.5% | F |
| 12 out of 40 | 28 | 30% | F |
| 11 out of 40 | 29 | 27.5% | F |
| 10 out of 40 | 30 | 25% | F |
| 9 out of 40 | 31 | 22.5% | F |
| 8 out of 40 | 32 | 20% | F |
| 7 out of 40 | 33 | 17.5% | F |
| 6 out of 40 | 34 | 15% | F |
| 5 out of 40 | 35 | 12.5% | F |
| 4 out of 40 | 36 | 10% | F |
| 3 out of 40 | 37 | 7.5% | F |
| 2 out of 40 | 38 | 5% | F |
| 1 out of 40 | 39 | 2.5% | F |
| 0 out of 40 | 40 | 0% | F |
How many can you miss on a 40-question test?
The most wrong answers allowed for each grade. Each question is worth 2.5%.
| Grade | Minimum score | Correct needed | Most wrong allowed |
|---|---|---|---|
| A+ | 97% | 39 | 1 |
| A | 93% | 38 | 2 |
| A- | 90% | 36 | 4 |
| B+ | 87% | 35 | 5 |
| B | 83% | 34 | 6 |
| B- | 80% | 32 | 8 |
| C+ | 77% | 31 | 9 |
| C | 73% | 30 | 10 |
| C- | 70% | 28 | 12 |
| D+ | 67% | 27 | 13 |
| D | 63% | 26 | 14 |
| D- | 60% | 24 | 16 |
Your school may use different cutoffs. See the grading scale chart for the plus/minus, 10-point and 7-point scales.
Frequently asked questions about a 40-question test
What grade is 34 out of 40?
34 out of 40 is 85%, a B on the standard plus/minus scale. 34/40 means 34 correct and 6 wrong. A school that uses a 10-point scale without plus or minus would call it a B.
What is 31/40 as a grade?
31 out of 40 is 77.5%, a C+, with 9 wrong, on the standard plus/minus scale.
What is 39/40 as a grade?
39 out of 40 is 97.5%, an A+, with 1 wrong, on the standard plus/minus scale.
What is 36/40 as a grade?
36 out of 40 is 90%, an A-, with 4 wrong, on the standard plus/minus scale.
How many questions can I miss on a 40-question test and still get an A?
You can miss up to 4 and still earn an A- (90%), or up to 2 for an A (93%). For a B (83%) the limit is up to 6, for a C (73%) it is up to 10, and to stay at a passing D- (60%) it is up to 16.
How much is each question worth on a 40-question test?
Each question is worth 2.5% of the grade, so every wrong answer lowers the score by 2.5 percentage points.
What score passes on a 40-question test?
At a 60% pass mark you need 24 correct, which is 60%, a D- on the plus/minus scale. One fewer (23 out of 40) is 57.5%, an F. Some schools set a higher pass mark such as 70%, which needs 28 correct.
How do I score half points on a 40-question test?
Use the calculator and switch it to half points. For example, 34.5 out of 40 is 86.25%, a B.
How do I print the 40-question chart?
Press Print / save as PDF above the chart. Only this chart is printed, and you can choose Save as PDF in the print window to get a file instead of paper.
What grading scale does this chart use?
The standard U.S. plus/minus scale: A at 93%, A- at 90%, B+ at 87%, B at 83%, B- at 80%, C+ at 77%, C at 73%, C- at 70%, D+ at 67%, D at 63% and D- at 60%. Schools set their own cutoffs, so if yours differ, read the percentage column and apply your own.
Other test sizes
- 8 questions
- 10 questions
- 12 questions
- 13 questions
- 14 questions
- 15 questions
- 16 questions
- 18 questions
- 20 questions
- 22 questions
- 24 questions
- 25 questions
- 30 questions
- 34 questions
- 40 questions
- 45 questions
- 50 questions
- 60 questions
- 100 questions
Different length? The easy grader calculator works for any number of questions, and the chart hub lists every size.