Test Score Calculator
Turn the number of correct answers into a percentage score and letter grade.
Results update as you type.
About this calculator
A test score calculator converts the number of questions you got right out of the total into a percentage and a letter grade. Set the points lost per wrong answer under advanced options if wrong answers carry a penalty; otherwise every unanswered or wrong question simply scores zero.
Frequently asked questions
How do I calculate a test percentage?
Divide the number of correct answers by the total number of questions and multiply by 100. Eighteen correct out of twenty is 18 ÷ 20 × 100 = 90%.
How does the wrong-answer penalty work?
Some exams subtract a fraction of a point for each wrong answer to discourage guessing. If you set a penalty, it is multiplied by the number of wrong answers and removed from your raw score before the percentage is worked out.
How does the wrong-answer penalty work?
Some exams subtract a fraction of a point for each wrong answer to discourage guessing. If you set a penalty, it is multiplied by the number of wrong answers and removed from your raw score before the percentage is worked out.
Results are estimates for general guidance only, not financial, medical or tax advice.