Grade chart for 30 questions
Every score on a 30-question test as a percentage, letter grade and GPA. Each question is worth 3.33%. You can miss up to 3 for an A, and up to 12 and still pass with 60%.
- Each question
- 3.33%of the test
- A
- ≤ 3 wrong27 or more right
- B
- ≤ 6 wrong24 or more right
- C
- ≤ 9 wrong21 or more right
- D
- ≤ 12 wrong18 or more right
Every score out of 30
Find the number correct or the number wrong, and pick a score for its full breakdown. Percentages are rounded to one decimal, never up past a grade boundary.
| Correct | Wrong | Percentage | Grade | Plus/minus | GPA |
|---|---|---|---|---|---|
| 30/30 | 0 | 100% | A | A+ | 4.0 |
| 29/30 | 1 | 96.7% | A | A | 4.0 |
| 28/30 | 2 | 93.3% | A | A | 4.0 |
| 27/30 | 3 | 90% | A | A− | 4.0 |
| 26/30 | 4 | 86.7% | B | B | 3.0 |
| 25/30 | 5 | 83.3% | B | B | 3.0 |
| 24/30 | 6 | 80% | B | B− | 3.0 |
| 23/30 | 7 | 76.7% | C | C | 2.0 |
| 22/30 | 8 | 73.3% | C | C | 2.0 |
| 21/30 | 9 | 70% | C | C− | 2.0 |
| 20/30 | 10 | 66.7% | D | D | 1.0 |
| 19/30 | 11 | 63.3% | D | D | 1.0 |
| 18/30 | 12 | 60% | D | D− | 1.0 |
| 17/30 | 13 | 56.7% | F | F | 0.0 |
| 16/30 | 14 | 53.3% | F | F | 0.0 |
| 15/30 | 15 | 50% | F | F | 0.0 |
| 14/30 | 16 | 46.7% | F | F | 0.0 |
| 13/30 | 17 | 43.3% | F | F | 0.0 |
| 12/30 | 18 | 40% | F | F | 0.0 |
| 11/30 | 19 | 36.7% | F | F | 0.0 |
| 10/30 | 20 | 33.3% | F | F | 0.0 |
| 9/30 | 21 | 30% | F | F | 0.0 |
| 8/30 | 22 | 26.7% | F | F | 0.0 |
| 7/30 | 23 | 23.3% | F | F | 0.0 |
| 6/30 | 24 | 20% | F | F | 0.0 |
| 5/30 | 25 | 16.7% | F | F | 0.0 |
| 4/30 | 26 | 13.3% | F | F | 0.0 |
| 3/30 | 27 | 10% | F | F | 0.0 |
| 2/30 | 28 | 6.7% | F | F | 0.0 |
| 1/30 | 29 | 3.3% | F | F | 0.0 |
| 0/30 | 30 | 0% | F | F | 0.0 |
How to work out a score out of 30
- Divide the number correct by 30. For 29 out of 30: 29 ÷ 30 = 0.9667.
- Multiply by 100: 96.67%.
- Find that on the grading scale. A is 90% and up, B 80%, C 70% and D 60%, so 29/30 is an A.
Every wrong answer costs 3.33 percentage points on this test. The grading scales guide compares the standard, plus/minus and 7-point scales.
Questions about a 30-question test
What grade is 29 out of 30?
29/30 is 96.67%, an A and a 4.0 GPA. Yes. It is an A, the top grade on the standard US scale.
What grade is 28 out of 30?
28/30 is 93.33%, an A and a 4.0 GPA. Yes. It is an A, the top grade on the standard US scale.
What grade is 24 out of 30?
24/30 is 80%, a B (B− with plus and minus grades) and a 3.0 GPA. Yes. It is a B, a solid grade above the C average.
What grade is 21 out of 30?
21/30 is 70%, a C (C− with plus and minus grades) and a 2.0 GPA. It is a C, an average grade and a pass at most US schools.
How many can you miss on a 30-question test and get an A?
3. 27 out of 30 is 90%, still an A. With plus and minus grades a full A starts at 93%, so you can miss 2 for an A, and 27 out of 30 is an A−.
How many wrong can you get and still pass?
12 with a 60% passing score: you need 18 out of 30. With a 70% passing score you need 21 out of 30.
Grade charts for other test lengths
Need another length? The printable grade charts go from 5 to 100 questions, and the easy grader makes a chart for any test.