Grading chart · 40 questions

40 Question Grading Scale: Out of 40 Grading Chart

31 out of 40 is 77.5%, which is a C+ on the standard grading scale. Below is every score from 40/40 down to 0/40 with its percentage, letter grade and number wrong.

Out of 40 grade calculator

31/40 is

77.5%
C+ Passing
Wrong answers
9
Each question
2.5%
Needed to pass
24/40

Out of 40 grading chart

Every possible score on a 40-question test. Each question is worth 2.5%.

Grading chart for a 40-question test: every score with its percentage and letter grade
Score Wrong Percentage Grade Status
40/40 0 100% A+ Passing
39/40 1 97.5% A+ Passing
38/40 2 95% A Passing
37/40 3 92.5% A- Passing
36/40 4 90% A- Passing
35/40 5 87.5% B+ Passing
34/40 6 85% B Passing
33/40 7 82.5% B- Passing
32/40 8 80% B- Passing
31/40 9 77.5% C+ Passing
30/40 10 75% C Passing
29/40 11 72.5% C- Passing
28/40 12 70% C- Passing
27/40 13 67.5% D Passing
26/40 14 65% D Passing
25/40 15 62.5% D Passing
24/40 16 60% D Passing
23/40 17 57.5% F Not passing
22/40 18 55% F Not passing
21/40 19 52.5% F Not passing
20/40 20 50% F Not passing
19/40 21 47.5% F Not passing
18/40 22 45% F Not passing
17/40 23 42.5% F Not passing
16/40 24 40% F Not passing
15/40 25 37.5% F Not passing
14/40 26 35% F Not passing
13/40 27 32.5% F Not passing
12/40 28 30% F Not passing
11/40 29 27.5% F Not passing
10/40 30 25% F Not passing
9/40 31 22.5% F Not passing
8/40 32 20% F Not passing
7/40 33 17.5% F Not passing
6/40 34 15% F Not passing
5/40 35 12.5% F Not passing
4/40 36 10% F Not passing
3/40 37 7.5% F Not passing
2/40 38 5% F Not passing
1/40 39 2.5% F Not passing
0/40 40 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 40-question test

Forty questions is a typical length for a unit exam or a midterm in middle and high school.

One wrong answer gives 97.5% (A+) and two wrong answers give 95% (A). To pass with 60%, a student needs 24 correct and can miss up to 16.

With 40 questions every letter grade on the standard scale, from A+ down to F, can be earned with a whole-number score, so the chart below shows the full range.

On a long exam, check whether any single question was missed by most of the class; that usually points to a teaching gap or a flawed item, not to 30 careless students.

What you need for each grade out of 40

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

  1. A+

    39 of 40 correct (miss up to 1)

  2. A

    38 of 40 correct (miss up to 2)

  3. A-

    36 of 40 correct (miss up to 4)

  4. B+

    35 of 40 correct (miss up to 5)

  5. B

    34 of 40 correct (miss up to 6)

  6. B-

    32 of 40 correct (miss up to 8)

  7. C+

    31 of 40 correct (miss up to 9)

  8. C

    30 of 40 correct (miss up to 10)

  9. C-

    28 of 40 correct (miss up to 12)

  10. D

    24 of 40 correct (miss up to 16)

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 40

  1. Divide the score by the total31 ÷ 40 = 0.775
  2. Multiply by 1000.775 × 100 = 77.5%
  3. Read the letter grade77.5% → C+
Works for any score, including half points such as 38.5/40. Use the calculator above for instant results.

Out of 40 grade FAQ

What is 38 out of 40 as a grade?

38 out of 40 is 95%, an A on the standard US grading scale. That means 2 wrong answers, and it is a passing score.

What is 31 out of 40 as a grade?

31 out of 40 is 77.5%, a C+ on the standard US grading scale. That means 9 wrong answers, and it is a passing score.

What is 29 out of 40 as a grade?

29 out of 40 is 72.5%, a C- on the standard US grading scale. That means 11 wrong answers, and it is a passing score.

What is 34 out of 40 as a grade?

34 out of 40 is 85%, a B on the standard US grading scale. That means 6 wrong answers, and it is a passing score.

How much is each question worth on a 40 question test?

Each question is worth 100 ÷ 40 = 2.5 percentage points, so every wrong answer lowers the grade by 2.5%. 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 40 question test and still pass?

With a 60% pass mark you need at least 24 correct out of 40 (60%), so you can miss up to 16 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 40?

An A (93% or higher) needs 38 correct out of 40, so you can miss 2. A B (83% or higher) needs 34 correct, so you can miss 6. On a 10-point scale, where an A starts at 90%, the numbers are a little more forgiving.