17 out of 18 as a Grade: Chart for an 18-Question Test
Quick answer: 17 out of 18 is 94.44%, an A. 16 out of 18 is 88.89%, a B+.
Each question on an 18-question test is worth 5.56%. You can miss up to 1 and keep an A- (90%).
Standard plus/minus scale. Last reviewed: October 2026.
Popular scores on a 18-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 · 18-question grading chart · standard plus/minus scale
EZ Grader Chart: Every Score on a 18-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 |
|---|---|---|---|
| 18 out of 18 | 0 | 100% | A+ |
| 17 out of 18 | 1 | 94.44% | A |
| 16 out of 18 | 2 | 88.89% | B+ |
| 15 out of 18 | 3 | 83.33% | B |
| 14 out of 18 | 4 | 77.78% | C+ |
| 13 out of 18 | 5 | 72.22% | C- |
| 12 out of 18 | 6 | 66.67% | D |
| 11 out of 18 | 7 | 61.11% | D- |
| 10 out of 18 | 8 | 55.56% | F |
| 9 out of 18 | 9 | 50% | F |
| 8 out of 18 | 10 | 44.44% | F |
| 7 out of 18 | 11 | 38.89% | F |
| 6 out of 18 | 12 | 33.33% | F |
| 5 out of 18 | 13 | 27.78% | F |
| 4 out of 18 | 14 | 22.22% | F |
| 3 out of 18 | 15 | 16.67% | F |
| 2 out of 18 | 16 | 11.11% | F |
| 1 out of 18 | 17 | 5.56% | F |
| 0 out of 18 | 18 | 0% | F |
Show the half-point chart for 18 questions
| Score | Wrong | Percentage | Letter |
|---|---|---|---|
| 18 out of 18 | 0 | 100% | A+ |
| 17.5 out of 18 | 0.5 | 97.22% | A+ |
| 17 out of 18 | 1 | 94.44% | A |
| 16.5 out of 18 | 1.5 | 91.67% | A- |
| 16 out of 18 | 2 | 88.89% | B+ |
| 15.5 out of 18 | 2.5 | 86.11% | B |
| 15 out of 18 | 3 | 83.33% | B |
| 14.5 out of 18 | 3.5 | 80.56% | B- |
| 14 out of 18 | 4 | 77.78% | C+ |
| 13.5 out of 18 | 4.5 | 75% | C |
| 13 out of 18 | 5 | 72.22% | C- |
| 12.5 out of 18 | 5.5 | 69.44% | D+ |
| 12 out of 18 | 6 | 66.67% | D |
| 11.5 out of 18 | 6.5 | 63.89% | D |
| 11 out of 18 | 7 | 61.11% | D- |
| 10.5 out of 18 | 7.5 | 58.33% | F |
| 10 out of 18 | 8 | 55.56% | F |
| 9.5 out of 18 | 8.5 | 52.78% | F |
| 9 out of 18 | 9 | 50% | F |
| 8.5 out of 18 | 9.5 | 47.22% | F |
| 8 out of 18 | 10 | 44.44% | F |
| 7.5 out of 18 | 10.5 | 41.67% | F |
| 7 out of 18 | 11 | 38.89% | F |
| 6.5 out of 18 | 11.5 | 36.11% | F |
| 6 out of 18 | 12 | 33.33% | F |
| 5.5 out of 18 | 12.5 | 30.56% | F |
| 5 out of 18 | 13 | 27.78% | F |
| 4.5 out of 18 | 13.5 | 25% | F |
| 4 out of 18 | 14 | 22.22% | F |
| 3.5 out of 18 | 14.5 | 19.44% | F |
| 3 out of 18 | 15 | 16.67% | F |
| 2.5 out of 18 | 15.5 | 13.89% | F |
| 2 out of 18 | 16 | 11.11% | F |
| 1.5 out of 18 | 16.5 | 8.33% | F |
| 1 out of 18 | 17 | 5.56% | F |
| 0.5 out of 18 | 17.5 | 2.78% | F |
| 0 out of 18 | 18 | 0% | F |
How many can you miss on a 18-question test?
The most wrong answers allowed for each grade. Each question is worth 5.56%.
| Grade | Minimum score | Correct needed | Most wrong allowed |
|---|---|---|---|
| A+ | 97% | 18 | 0 |
| A | 93% | 17 | 1 |
| A- | 90% | 17 | 1 |
| B+ | 87% | 16 | 2 |
| B | 83% | 15 | 3 |
| B- | 80% | 15 | 3 |
| C+ | 77% | 14 | 4 |
| C | 73% | 14 | 4 |
| C- | 70% | 13 | 5 |
| D+ | 67% | 13 | 5 |
| D | 63% | 12 | 6 |
| D- | 60% | 11 | 7 |
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 18-question test
What grade is 17 out of 18?
17 out of 18 is 94.44%, an A on the standard plus/minus scale. 17/18 means 17 correct and 1 wrong. A school that uses a 10-point scale without plus or minus would call it an A.
What is 16/18 as a grade?
16 out of 18 is 88.89%, a B+, with 2 wrong, on the standard plus/minus scale.
What is 14/18 as a grade?
14 out of 18 is 77.78%, a C+, with 4 wrong, on the standard plus/minus scale.
What is 13/18 as a grade?
13 out of 18 is 72.22%, a C-, with 5 wrong, on the standard plus/minus scale.
How many questions can I miss on a 18-question test and still get an A?
You can miss up to 1 and still earn an A- (90%), or up to 1 for an A (93%). For a B (83%) the limit is up to 3, for a C (73%) it is up to 4, and to stay at a passing D- (60%) it is up to 7.
How much is each question worth on a 18-question test?
Each question is worth 5.56% of the grade, so every wrong answer lowers the score by 5.56 percentage points.
What score passes on a 18-question test?
At a 60% pass mark you need 11 correct, which is 61.11%, a D- on the plus/minus scale. One fewer (10 out of 18) is 55.56%, an F. Some schools set a higher pass mark such as 70%, which needs 13 correct.
Can I give half points on a 18-question test?
Yes. Open the half-point chart on this page, or use the calculator and switch it to half points. For example, 17.5 out of 18 is 97.22%, an A+.
How do I print the 18-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.