How to Use a Grade Calculator for Test and Exam Scores

Calculating your test score does not require complicated math. Whether you are an educator evaluating thirty student submissions or a student checking your latest exam score, our grade calculator simplifies the process.

The Grade Calculator Mathematical Formula

To find your grade percentage:

Percentage = ((Total Questions - Number Wrong) / Total Questions) * 100

For instance, if an exam has 50 questions and you missed 4:

1. Correct questions = 50 - 4 = 46
2. Division = 46 / 50 = 0.92
3. Percentage = 0.92 * 100 = 92% (Letter Grade A-)

Using our online grade calculator, you can immediately view all possible grades in a single reference chart.