Test Grade Calculator
Enter the number of questions you answered correctly and the total number of questions on the test to find your score percentage, the number you got wrong, and how many more correct answers you would need to earn an A (90%).
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Calculator
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Formula
Score % = (Correct ÷ Total Questions) × 100
Dividing correct answers by total questions gives a proportion. Multiplying by 100 converts it to a percentage. Wrong answers are simply total minus correct. The A-threshold uses ceiling of 90% of total questions (rounding up to the nearest whole question), then subtracts your current correct count — if the result is negative, you already have an A.
How to use the Test Grade Calculator
- 1
Enter your correct answers
- 2
Enter your total questions
- 3
Read your results instantly
Results update in real time as you type.
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Reading Your Results
If 'More Correct Needed for A' is negative, congratulations — you already scored an A on this test. A result of zero means you are exactly on the boundary. A positive number tells you how many additional correct answers would have pushed you into A territory. This is useful feedback for studying: if you need just 2 more correct, focus on the question types most likely to appear on the next test.
Partial Credit and Weighted Questions
This calculator assumes all questions are worth equal points. If your test has weighted questions (e.g., short answer worth 5 points, multiple choice worth 1 point), use the grade calculator with points earned and points possible instead. For partial credit, count a half-credit question as 0.5 in the correct field.
Tips & Insights
Check the Curve
Many professors apply a curve after grading. If a curve adds 5 points to everyone, add 5 to your correct count before entering it to see your curved score.
Track Trends Across Tests
Enter results from multiple tests to see if your accuracy is improving. A rising correct-answers count is a better indicator than the raw score when total questions vary.
Set a Target Before the Test
Enter your target score and total questions to find the minimum correct answers you need. Then study until you are confident you can hit that number.
Worked Examples
42 of 50 Correct
84% (B), 8 wrong, need 3 more for an A.
Perfect Score
100%, 0 wrong, already have an A (need −5 more, already achieved).
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Frequently Asked Questions
What if my 'needed for A' result is negative?
A negative number means you already scored 90% or above — you have an A. The magnitude tells you how many questions above the A threshold you landed.
How is the A threshold calculated?
We use ceiling(total_questions × 0.9). For 50 questions that is ceiling(45) = 45 correct answers needed.
Can I use decimals for partial credit?
Yes. Enter 42.5 for a test where you received half credit on one question.
What does a 70% represent as a letter grade?
In most US grading systems, 70-79% is a C, 80-89% is a B, and 90-100% is an A. Check your syllabus for your course's specific scale.
How do I calculate a class participation grade by questions?
If participation is tracked by questions answered correctly in class, enter your total correct responses and total opportunities as if they were test questions.
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