On the standard US grading scale, yes. However, many institutions use different scales. Some use a 7-point scale where 93-100 is an A, and others curve grades based on class performance.

What if questions have different point values?

In that case, use total points earned divided by total possible points instead of number of questions. The percentage formula is the same.

How do I calculate a curved grade?

Common curving methods include: adding a fixed number of points, scaling so the highest score becomes 100%, or using a bell curve. Ask your instructor which method they use.

Calculateur de Note d'Examen

Calculez votre pourcentage de bonnes réponses à partir du nombre de bonnes réponses et du total de questions.

Calculez votre pourcentage de bonnes réponses à partir du nombre de bonnes réponses et du total de questions.

Nombre de bonnes réponses

Nombre total de questions

Formula

Score % = (correct answers / total questions) x 100

What is This Tool?

This calculator converts your raw test score (number correct out of total) into a percentage and assigns a letter grade based on the standard grading scale. It helps students quickly determine their performance on quizzes, tests, and exams.

Formula

Percentage = (Number Correct / Total Questions) x 100

Standard grading scale:
  A: 90-100%, B: 80-89%, C: 70-79%, D: 60-69%, F: below 60%

Worked Examples

1. Math test

Given: 42 correct out of 50 questions

Percentage = (42/50) x 100

Percentage = 84%

84% falls in B range

Result: 84% (B)

2. Science quiz

Given: 18 correct out of 20 questions

Percentage = (18/20) x 100 = 90%

Result: 90% (A)

3. History exam

Given: 55 correct out of 80 questions

Percentage = (55/80) x 100 = 68.75%

Result: 68.75% (D)

Frequently Asked Questions

Calculateur de Note d'Examen

1. Math test

2. Science quiz

3. History exam

Is a 70% always a C?

What if questions have different point values?

How do I calculate a curved grade?