MyGrades
Grades

Test Grade Calculator (EZ Grader)

The fast EZ grader for teachers and students. Enter the number of questions and how many were wrong to get the percentage score and letter grade - plus a quick grading chart.
85%
Score
Letter grade: B

Quick grading chart

-0 100%
-1 95%
-2 90%
-3 85%
-4 80%
-5 75%
-6 70%
-7 65%
-8 60%
-9 55%
-10 50%
-11 45%
-12 40%
-13 35%
-14 30%

How to grade a test fast

  1. 1Enter the total number of questions on the test.
  2. 2Enter how many were answered incorrectly.
  3. 3Read the percentage score and letter grade.
  4. 4Use the grading chart to mark a whole stack of papers quickly.

Grade any quiz or test in one tap

Whether you're a teacher marking a class set or a student checking your own quiz, this tool converts “questions wrong” into a clean percentage and letter grade. The grading chart shows the score for every possible number wrong so you can mark a whole stack at a glance.

Tracking results across a whole semester? The Weighted Grade Calculator rolls all your scores into one overall grade.

Frequently asked questions

How do you calculate a test grade?

Divide the number of correct answers by the total number of questions, then multiply by 100. For example, 17 correct out of 20 is 17 ÷ 20 × 100 = 85%.

What is an EZ grader?

An EZ grader is a quick reference that converts the number of questions wrong into a percentage, so teachers can grade a pile of papers without doing the math each time. The grading chart above is a digital version.

How is the letter grade decided?

We map the percentage to a letter using the standard scale: 90+ is an A, 80-89 a B, 70-79 a C, 60-69 a D, and below 60 an F (with +/- bands in between).

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Stop doing grade math in your head

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