Education

Test Grade Calculator

Enter the total number of questions and how many were answered incorrectly to get the percentage score and letter grade. A fast grader for quizzes, tests and homework.

Last updated

How many questions were answered incorrectly.

Results

Score
84%

21 of 25 correct

Letter grade
B
Correct answers
21
Incorrect answers
4

A faster way to grade

Counting wrong answers is usually quicker than counting correct ones, especially on a stack of papers. Enter the total once, then change only the number wrong for each test to read off the score and letter grade in seconds.

Worked example

Suppose a quiz has 25 questions and a student gets 4 of them wrong.

  1. 1.Correct answers (25 - 4)21
  2. 2.Score (21 / 25 x 100)84%
  3. 3.Letter grade for 84%B

Result: Getting 4 of 25 questions wrong is a score of 84%, which is a B on a standard grading scale.

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