Test Score Calculator
Convert correct answers to percentage and grade, with optional 0.25-point deduction per wrong answer.
How to use
Enter correct, total and wrong answers.
Formula
Score = correct - wrong×0.25; % = score/total×100.
Examples
- 18/20 correct, 2 wrong → Score 17.5, 87.5%, B+
Important notes
Negative marking of 0.25 per wrong answer is applied.
Frequently asked questions
What if no negative marking?
Set wrong = 0.