Grading chart · 15 questions

15 Question Grading Scale: Out of 15 Grading Chart

12 out of 15 is 80%, which is a B- on the standard grading scale. Below is every score from 15/15 down to 0/15 with its percentage, letter grade and number wrong.

Out of 15 grade calculator

12/15 is

80%
B- Passing
Wrong answers
3
Each question
6.67%
Needed to pass
9/15

Out of 15 grading chart

Every possible score on a 15-question test. Each question is worth 6.67%.

Grading chart for a 15-question test: every score with its percentage and letter grade
Score Wrong Percentage Grade Status
15/15 0 100% A+ Passing
14/15 1 93.33% A Passing
13/15 2 86.67% B Passing
12/15 3 80% B- Passing
11/15 4 73.33% C Passing
10/15 5 66.67% D Passing
9/15 6 60% D Passing
8/15 7 53.33% F Not passing
7/15 8 46.67% F Not passing
6/15 9 40% F Not passing
5/15 10 33.33% F Not passing
4/15 11 26.67% F Not passing
3/15 12 20% F Not passing
2/15 13 13.33% F Not passing
1/15 14 6.67% F Not passing
0/15 15 0% F Not passing
Standard US scale (A 93%+, B 83%+, C 73%+, D 60%+). Passing is 60%. Change the scale in the test grader settings and this chart updates on your device.

Grading notes for a 15-question test

Fifteen questions is one of the most common quiz lengths in middle and high school, especially for chapter quizzes and reading checks.

One wrong answer gives 93.33% (A) and two wrong answers give 86.67% (B). To pass with 60%, a student needs 9 correct and can miss up to 6.

Because each question moves the score by 6.67%, only 7 of the 11 letter grades on the standard scale can actually be earned on this test: A+, A, B, B-, C, D, F. No whole-number score lands on A-, B+, C+, C-. Half-point scores can fill some of those gaps.

12/15 is exactly 80%, the lowest B-, so three misses is still a B-. Because 15 doesn't divide evenly into 100, many scores land on repeating decimals (13/15 = 86.67%), so check whether your gradebook rounds before you compare students.

What you need for each grade out of 15

The fewest correct answers for each letter grade, and how many questions a student can miss.

  1. A+

    15 of 15 correct (miss up to 0)

  2. A

    14 of 15 correct (miss up to 1)

  3. A-

    14 of 15 correct (miss up to 1)

  4. B+

    14 of 15 correct (miss up to 1)

  5. B

    13 of 15 correct (miss up to 2)

  6. B-

    12 of 15 correct (miss up to 3)

  7. C+

    12 of 15 correct (miss up to 3)

  8. C

    11 of 15 correct (miss up to 4)

  9. C-

    11 of 15 correct (miss up to 4)

  10. D

    9 of 15 correct (miss up to 6)

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 15

  1. Divide the score by the total12 ÷ 15 = 0.8
  2. Multiply by 1000.8 × 100 = 80%
  3. Read the letter grade80% → B-
Works for any score, including half points such as 13.5/15. Use the calculator above for instant results.

Out of 15 grade FAQ

What is 13 out of 15 as a grade?

13 out of 15 is 86.67%, a B on the standard US grading scale. That means 2 wrong answers, and it is a passing score.

What is 11 out of 15 as a grade?

11 out of 15 is 73.33%, a C on the standard US grading scale. That means 4 wrong answers, and it is a passing score.

What is 10 out of 15 as a grade?

10 out of 15 is 66.67%, a D on the standard US grading scale. That means 5 wrong answers, and it is a passing score.

What is 12 out of 15 as a grade?

12 out of 15 is 80%, a B- on the standard US grading scale. That means 3 wrong answers, and it is a passing score.

How much is each question worth on a 15 question test?

Each question is worth 100 ÷ 15 = 6.67 percentage points, so every wrong answer lowers the grade by 6.67%. 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 a 15 question test and still pass?

With a 60% pass mark you need at least 9 correct out of 15 (60%), so you can miss up to 6 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 15?

An A (93% or higher) needs 14 correct out of 15, so you can miss 1. A B (83% or higher) needs 13 correct, so you can miss 2. On a 10-point scale, where an A starts at 90%, the numbers are a little more forgiving.