How To Figure a Percentage and Letter Grade

A Few Simple Steps

Graded math homework and grade book
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If you are a teacher, grading tests and papers are a regular part of your weekly activities. Here are some simple steps to figure out the percentage and letter grade of an assignment or test.

To calculate a test grade, you will need to figure out the percentage of questions that were answered correctly. All you need to know to find the grade is the total number of questions on the test and how many questions are correct.

After that, you will just need to plug a simple equation into a calculator and convert the percentage to a letter grade.

Difficulty: Easy

Time Required: 5 minutes

Here's How:

  1. Correct the paper.
  2. Determine the number of total questions.
  3. Count the number of correct questions.
  4. Take the number of correct questions and divide by the total number of questions.
  5. Multiply this number by 100 to turn it into a percentage.
  6. Grade ranges often vary among professors and teachers. If a professor or teacher provided a syllabus at the beginning of the year, it may list the grade range. A typical grade scale is 90-100% = A; 80-89% = B; 70-79% = C; 60-69% = D; 59% and below = F


  1. Use a calculator to make the calculations.