Grading Scale for 45 Questions — Free Teacher Tool

Grading Scale for 45 Questions

Instantly convert test scores to percentages and letter grades for teachers and students

45
Total Questions
2.22%
Each Question Worth
60%
Passing Score
27
Questions to Pass

Quick Calculator

Your Score
100%
Grade: A (Pass)
Excellent work!

Complete Grading Chart

Wrong Correct Percentage Grade Status
0 45 100.0% A Pass
1 44 97.78% A Pass
2 43 95.56% A Pass
3 42 93.33% A Pass
4 41 91.11% A Pass
5 40 88.89% B Pass
6 39 86.67% B Pass
7 38 84.44% B Pass
8 37 82.22% B Pass
9 36 80.0% B Pass
10 35 77.78% C Pass
11 34 75.56% C Pass
12 33 73.33% C Pass
13 32 71.11% C Pass
14 31 68.89% D Pass
15 30 66.67% D Pass
16 29 64.44% D Pass
17 28 62.22% D Pass
18 27 60.0% D Pass
19 26 57.78% F Fail
20 25 55.56% F Fail
21 24 53.33% F Fail
22 23 51.11% F Fail
23 22 48.89% F Fail
24 21 46.67% F Fail
25 20 44.44% F Fail
26 19 42.22% F Fail
27 18 40.0% F Fail
28 17 37.78% F Fail
29 16 35.56% F Fail
30 15 33.33% F Fail
31 14 31.11% F Fail
32 13 28.89% F Fail
33 12 26.67% F Fail
34 11 24.44% F Fail
35 10 22.22% F Fail
36 9 20.0% F Fail
37 8 17.78% F Fail
38 7 15.56% F Fail
39 6 13.33% F Fail
40 5 11.11% F Fail
41 4 8.89% F Fail
42 3 6.67% F Fail
43 2 4.44% F Fail
44 1 2.22% F Fail
45 0 0.0% F Fail

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How to Grade a 45-Question Test

Grading a 45-question test is straightforward once you know the formula. Divide the number of correct answers by 45, then multiply by 100 to get the percentage. Then match that percentage to the grading scale.

The Formula

(Correct Answers ÷ 45) × 100 = Percentage

Then use the grading scale: A = 90-100%, B = 80-89%, C = 70-79%, D = 60-69%, F = 0-59%

Worked Example

Lucas’s placement exam: Lucas got 38 correct out of 45. Their score is (38 ÷ 45) × 100 = 85%. That’s a B (solid performance).

⚠️ Common Mistake: getting overwhelmed by the number of items and losing count. Always divide correct answers by the total number of questions first, then convert to a percentage.

What Each Question Is Worth on a 45-Question Test

On a 45-question test, each question is worth exactly 2.22% of your grade. This means every single question matters.

Understanding per-question value helps you make quick estimates. If you miss one question, subtract 2.22% from 100% to get your score. Missing two questions? Subtract 4.44% from your total.

💡 Pro Tip: 45-question tests are good for detailed assessment with ~2.2% per question

To reach a passing grade (60%), you need to get at least 27 questions correct out of 45. Use our test grade calculator to explore what-if scenarios, or check the grading scale calculator for other test lengths. If you need to work backward from a target grade, try our grade calculator.

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MyGradeCalculator. (2026). Grading Scale for 45 Questions [Web application]. https://mygradecalculator.online/grading-scale-for-45-questions/
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“Grading Scale for 45 Questions.” MyGradeCalculator, mygradecalculator.online/grading-scale-for-45-questions/.

Frequently Asked Questions

What is 97.78% on a 45-question test?
If you get one question wrong on a 45-question test, your score is 97.78%. Each question on this test is worth 2.22% of your grade. This A grade means you answered 44 questions correctly.
How many questions can I miss and still pass a 45-question test?
To pass a 45-question test (assuming 60% is passing), you can miss up to 18 questions and still pass. That means you need to get at least 27 correct. Any more wrong answers will drop you below a passing grade.
What letter grade is 75% out of 45?
A score of 75% on a 45-question test is a C (C range). This means you got approximately 34 questions correct. The exact number of correct answers needed depends on how your teacher rounds percentages.
How do you calculate a test grade for 45 questions?
Divide the number of questions you got right by 45, then multiply by 100. For example, if you got 36 questions correct: (36 ÷ 45) × 100 = 80%. Use our grading scale chart above to see what letter grade this percentage equals.
What is the grading scale for a 45-question quiz?
The standard grading scale for any test is: A = 90-100%, B = 80-89%, C = 70-79%, D = 60-69%, F = 0-59%. On a 45-question test, this translates to specific numbers of correct answers. See the full grading table above for the exact breakdown of how many questions you need correct for each grade.