12 out of 13 as a Grade: Chart for a 13-Question Test
Quick answer: 12 out of 13 is 92.31%, an A-. 10 out of 13 is 76.92%, a C.
Each question on a 13-question test is worth 7.69%. You can miss up to 1 and keep an A- (90%).
Standard plus/minus scale. Last reviewed: October 2026.
Popular scores on a 13-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 · 13-question grading chart · standard plus/minus scale
EZ Grader Chart: Every Score on a 13-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 |
|---|---|---|---|
| 13 out of 13 | 0 | 100% | A+ |
| 12 out of 13 | 1 | 92.31% | A- |
| 11 out of 13 | 2 | 84.62% | B |
| 10 out of 13 | 3 | 76.92% | C |
| 9 out of 13 | 4 | 69.23% | D+ |
| 8 out of 13 | 5 | 61.54% | D- |
| 7 out of 13 | 6 | 53.85% | F |
| 6 out of 13 | 7 | 46.15% | F |
| 5 out of 13 | 8 | 38.46% | F |
| 4 out of 13 | 9 | 30.77% | F |
| 3 out of 13 | 10 | 23.08% | F |
| 2 out of 13 | 11 | 15.38% | F |
| 1 out of 13 | 12 | 7.69% | F |
| 0 out of 13 | 13 | 0% | F |
Show the half-point chart for 13 questions
| Score | Wrong | Percentage | Letter |
|---|---|---|---|
| 13 out of 13 | 0 | 100% | A+ |
| 12.5 out of 13 | 0.5 | 96.15% | A |
| 12 out of 13 | 1 | 92.31% | A- |
| 11.5 out of 13 | 1.5 | 88.46% | B+ |
| 11 out of 13 | 2 | 84.62% | B |
| 10.5 out of 13 | 2.5 | 80.77% | B- |
| 10 out of 13 | 3 | 76.92% | C |
| 9.5 out of 13 | 3.5 | 73.08% | C |
| 9 out of 13 | 4 | 69.23% | D+ |
| 8.5 out of 13 | 4.5 | 65.38% | D |
| 8 out of 13 | 5 | 61.54% | D- |
| 7.5 out of 13 | 5.5 | 57.69% | F |
| 7 out of 13 | 6 | 53.85% | F |
| 6.5 out of 13 | 6.5 | 50% | F |
| 6 out of 13 | 7 | 46.15% | F |
| 5.5 out of 13 | 7.5 | 42.31% | F |
| 5 out of 13 | 8 | 38.46% | F |
| 4.5 out of 13 | 8.5 | 34.62% | F |
| 4 out of 13 | 9 | 30.77% | F |
| 3.5 out of 13 | 9.5 | 26.92% | F |
| 3 out of 13 | 10 | 23.08% | F |
| 2.5 out of 13 | 10.5 | 19.23% | F |
| 2 out of 13 | 11 | 15.38% | F |
| 1.5 out of 13 | 11.5 | 11.54% | F |
| 1 out of 13 | 12 | 7.69% | F |
| 0.5 out of 13 | 12.5 | 3.85% | F |
| 0 out of 13 | 13 | 0% | F |
How many can you miss on a 13-question test?
The most wrong answers allowed for each grade. Each question is worth 7.69%.
| Grade | Minimum score | Correct needed | Most wrong allowed |
|---|---|---|---|
| A+ | 97% | 13 | 0 |
| A | 93% | 13 | 0 |
| A- | 90% | 12 | 1 |
| B+ | 87% | 12 | 1 |
| B | 83% | 11 | 2 |
| B- | 80% | 11 | 2 |
| C+ | 77% | 11 | 2 |
| C | 73% | 10 | 3 |
| C- | 70% | 10 | 3 |
| D+ | 67% | 9 | 4 |
| D | 63% | 9 | 4 |
| D- | 60% | 8 | 5 |
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 13-question test
What grade is 12 out of 13?
12 out of 13 is 92.31%, an A- on the standard plus/minus scale. 12/13 means 12 correct and 1 wrong. A school that uses a 10-point scale without plus or minus would call it an A.
What is 10/13 as a grade?
10 out of 13 is 76.92%, a C, with 3 wrong, on the standard plus/minus scale.
What is 9/13 as a grade?
9 out of 13 is 69.23%, a D+, with 4 wrong, on the standard plus/minus scale.
What is 8/13 as a grade?
8 out of 13 is 61.54%, a D-, with 5 wrong, on the standard plus/minus scale.
How many questions can I miss on a 13-question test and still get an A?
You can miss up to 1 and still earn an A- (90%), or none for an A (93%). For a B (83%) the limit is up to 2, for a C (73%) it is up to 3, and to stay at a passing D- (60%) it is up to 5.
How much is each question worth on a 13-question test?
Each question is worth 7.69% of the grade, so every wrong answer lowers the score by 7.69 percentage points.
What score passes on a 13-question test?
At a 60% pass mark you need 8 correct, which is 61.54%, a D- on the plus/minus scale. One fewer (7 out of 13) is 53.85%, an F. Some schools set a higher pass mark such as 70%, which needs 10 correct.
Can I give half points on a 13-question test?
Yes. Open the half-point chart on this page, or use the calculator and switch it to half points. For example, 12.5 out of 13 is 96.15%, an A.
How do I print the 13-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
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- 20 questions
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- 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.