Grading chart · 18 questions
18 Question Grading Scale: Out of 18 Grading Chart
15 out of 18 is 83.33%, which is a B on the standard grading scale. Below is every score from 18/18 down to 0/18 with its percentage, letter grade and number wrong.
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Out of 18 grade calculator
15/18 is
- Wrong answers
- 3
- Each question
- 5.56%
- Needed to pass
- 11/18
Popular scores out of 18
Tap a score to jump to its row in the chart.
Out of 18 grading chart
Every possible score on an 18-question test. Each question is worth 5.56%.
| Score | Wrong | Percentage | Grade | Status |
|---|---|---|---|---|
| 18/18 | 0 | 100% | A+ | Passing |
| 17/18 | 1 | 94.44% | A | Passing |
| 16/18 | 2 | 88.89% | B+ | Passing |
| 15/18 | 3 | 83.33% | B | Passing |
| 14/18 | 4 | 77.78% | C+ | Passing |
| 13/18 | 5 | 72.22% | C- | Passing |
| 12/18 | 6 | 66.67% | D | Passing |
| 11/18 | 7 | 61.11% | D | Passing |
| 10/18 | 8 | 55.56% | F | Not passing |
| 9/18 | 9 | 50% | F | Not passing |
| 8/18 | 10 | 44.44% | F | Not passing |
| 7/18 | 11 | 38.89% | F | Not passing |
| 6/18 | 12 | 33.33% | F | Not passing |
| 5/18 | 13 | 27.78% | F | Not passing |
| 4/18 | 14 | 22.22% | F | Not passing |
| 3/18 | 15 | 16.67% | F | Not passing |
| 2/18 | 16 | 11.11% | F | Not passing |
| 1/18 | 17 | 5.56% | F | Not passing |
| 0/18 | 18 | 0% | F | Not passing |
Grading notes for an 18-question test
Eighteen-question tests often mix two question types, such as 12 multiple choice and 6 short answer.
One wrong answer gives 94.44% (A) and two wrong answers give 88.89% (B+). To pass with 60%, a student needs 11 correct and can miss up to 7.
Because each question moves the score by 5.56%, only 8 of the 11 letter grades on the standard scale can actually be earned on this test: A+, A, B+, B, C+, C-, D, F. No whole-number score lands on A-, B-, C. Half-point scores can fill some of those gaps.
Each question is worth about 5.56%, but only if every question has the same weight. If the short-answer items are worth more points, grade by points instead: add up the points earned and divide by the total points possible.
What you need for each grade out of 18
The fewest correct answers for each letter grade, and how many questions a student can miss.
-
A+
18 of 18 correct (miss up to 0)
-
A
17 of 18 correct (miss up to 1)
-
A-
17 of 18 correct (miss up to 1)
-
B+
16 of 18 correct (miss up to 2)
-
B
15 of 18 correct (miss up to 3)
-
B-
15 of 18 correct (miss up to 3)
-
C+
14 of 18 correct (miss up to 4)
-
C
14 of 18 correct (miss up to 4)
-
C-
13 of 18 correct (miss up to 5)
-
D
11 of 18 correct (miss up to 7)
Each grade starts at its minimum percentage: A+ 97%, A 93%, A- 90%, B+ 87%, B 83%, B- 80%, C+ 77%, C 73%, C- 70%, D 60%.
How to calculate a grade out of 18
- Divide the score by the total
15 ÷ 18 = 0.8333 - Multiply by 100
0.8333 × 100 = 83.33% - Read the letter grade
83.33% → B
Out of 18 grade FAQ
What is 15 out of 18 as a grade?
15 out of 18 is 83.33%, a B on the standard US grading scale. That means 3 wrong answers, and it is a passing score.
What is 12 out of 18 as a grade?
12 out of 18 is 66.67%, a D on the standard US grading scale. That means 6 wrong answers, and it is a passing score.
What is 16 out of 18 as a grade?
16 out of 18 is 88.89%, a B+ on the standard US grading scale. That means 2 wrong answers, and it is a passing score.
What is 13 out of 18 as a grade?
13 out of 18 is 72.22%, a C- on the standard US grading scale. That means 5 wrong answers, and it is a passing score.
How much is each question worth on an 18 question test?
Each question is worth 100 ÷ 18 = 5.56 percentage points, so every wrong answer lowers the grade by 5.56%. If your questions are worth different points, add up the points instead and divide by the total points possible.
How many questions can you miss on an 18 question test and still pass?
With a 60% pass mark you need at least 11 correct out of 18 (61.11%), so you can miss up to 7 questions and still pass. Some schools use 65% or 70% as the pass mark; you can change it in the test grader settings.
How many do you need for an A or a B out of 18?
An A (93% or higher) needs 17 correct out of 18, so you can miss 1. A B (83% or higher) needs 15 correct, so you can miss 3. On a 10-point scale, where an A starts at 90%, the numbers are a little more forgiving.