Calculator Form
Use the fields below to estimate marks, penalties, confidence threshold, and score outcomes.
Example Data Table
| Candidate | Total Questions | Attempted | Correct | Wrong | Marks per Correct | Negative per Wrong | Net Score |
|---|---|---|---|---|---|---|---|
| A | 100 | 80 | 60 | 20 | 4 | 1 | 220 |
| B | 100 | 72 | 55 | 17 | 4 | 1 | 203 |
| C | 120 | 90 | 68 | 22 | 3 | 0.75 | 187.5 |
| D | 150 | 110 | 78 | 32 | 2 | 0.5 | 140 |
Formula Used
Wrong Answers = Attempted Questions − Correct Answers
Unattempted Questions = Total Questions − Attempted Questions
Positive Marks = Correct Answers × Marks per Correct Answer
Wrong Deduction = Wrong Answers × Negative Marks per Wrong Answer
Blank Deduction = Unattempted Questions × Penalty per Unattempted Question
Net Score = Positive Marks + Bonus + Grace − Wrong Deduction − Blank Deduction
Accuracy = (Correct Answers ÷ Attempted Questions) × 100
Attempt Rate = (Attempted Questions ÷ Total Questions) × 100
Break-even Confidence = Negative Marks ÷ (Marks per Correct + Negative Marks) × 100
How to Use This Calculator
- Enter the total number of questions in the exam.
- Add how many questions you attempted.
- Enter the number of correct answers from your attempt.
- Fill in the marks awarded for each correct answer.
- Enter the negative marks deducted for each wrong answer.
- Add optional blank penalty, bonus marks, grace marks, passing score, and target score.
- Click Calculate Score to show the result above the form.
- Review the graph, scenario analysis, and export buttons for revision planning.
Frequently Asked Questions
1. What is negative marking?
Negative marking deducts marks for incorrect answers. It discourages random guessing and rewards accurate attempts. The exact deduction varies by exam pattern.
2. How are wrong answers calculated here?
Wrong answers are calculated by subtracting correct answers from attempted questions. This assumes every attempted question is either correct or wrong.
3. Should I attempt every question in a negative marking exam?
Not always. If your confidence is below the break-even level, skipping may protect your score better than guessing blindly.
4. What does break-even confidence mean?
It shows the minimum confidence level needed for an attempted guess to make mathematical sense. Above that level, the expected value improves.
5. Can unattempted questions reduce my score?
Usually they do not. However, some exams apply blank penalties. This calculator supports that rule when needed.
6. Why is normalized percentage useful?
Normalized percentage helps compare results across different mock tests or sections. It expresses your net score against the paper’s base maximum marks.
7. Can I include bonus and grace marks?
Yes. Both fields are optional. They are added after positive marks and before the final net score is displayed.
8. Is this calculator useful for mock tests?
Yes. It helps analyze attempt quality, score risk, and accuracy trends. That makes it useful for revision strategy and exam-day planning.