The Exam Score Estimator projects a raw and percentage score from the number of questions expected to be correct, incorrect, and omitted. It supports optional penalties for wrong answers, making it suitable for practice tests and exams that use negative marking.
Use the estimate before an exam to model likely outcomes or afterward when only a tentative answer count is known. The calculator separates the gross correct-answer score from deductions so you can see exactly how a penalty rule changes the final result.
1. Set the question count
Enter the total number of questions on the exam.
2. Estimate outcomes
Enter how many answers you expect to be correct and wrong; the rest are treated as omitted.
3. Enter scoring values
Provide points awarded per correct answer and any deduction per wrong answer.
4. Set the exam maximum
Use the maximum score shown in the exam rules.
5. Review the projection
Check the estimated raw score, percentage, omissions, and penalty deduction.
Gross score = Correct answers × Points per correct answer
Penalty deduction = Wrong answers × Penalty per wrong answer
Estimated raw score = max(0, Gross score − Penalty deduction)
Estimated percentage = Raw score ÷ Maximum exam score × 100
Omitted questions are assumed to earn zero points and no penalty. The raw score is floored at zero in this implementation.
The estimate shows the percentage implied by the answer-count assumptions and scoring rule.
It does not predict which questions will be answered correctly or account for section-specific scoring unless entered separately.
Given: 100 questions, 78 correct, 17 wrong, 1 point per correct answer, a 0.25-point wrong-answer penalty, and a 100-point maximum.
Calculation: Omitted = 100 − 78 − 17 = 5. Gross score = 78 × 1 = 78. Deduction = 17 × 0.25 = 4.25. Raw score = 78 − 4.25 = 73.75. Percentage = 73.75 ÷ 100 × 100 = 73.75%.
Result: The estimated exam score is 73.75 points, or 73.75%.
Set the penalty per wrong answer to 0.
They are the difference between total, correct, and wrong questions and receive zero points with no deduction.
Yes. Enter the stated point value per correct answer and use the official maximum score.
That can happen when the entered scoring values imply a raw score greater than the maximum. Recheck the exam maximum and point rules.
It is a scenario estimator, not a statistical forecast. Its quality depends on the answer counts you enter.