Got your test back? Enter the number of questions and how many you missed to get your percentage and letter grade, plus a full grading chart.
Show the grading chart for this test
| Wrong | Correct | Score | Grade |
|---|
TL;DR Test score % = (total questions − number wrong) ÷ total questions × 100.
This free test score calculator (sometimes called an EZ grader) turns a raw test result into a percentage and a letter grade in one step. Students use it to check a returned test, and teachers use the grading chart to mark a stack of papers quickly.
How to use it
- Total questions: the number of questions on the test, or the total points if questions carry different marks.
- Wrong or correct: choose whether you are typing how many you missed or how many you got right.
- Read your result: you get the percentage, letter grade and how much each question was worth. Open the grading chart to see every possible score.
The formula
Score % = correct ÷ total × 100, where correct = total − wrong.
Example: a 40-question test with 6 wrong means 34 correct. 34 ÷ 40 = 0.85, so your score is 85% (a B). Each question was worth 100 ÷ 40 = 2.5%.
Letter grade scale used
We use the common US scale below. Your school may set different cut-offs, so check your syllabus.
| Grade | Percentage | Grade | Percentage |
|---|---|---|---|
| A+ | 97–100 | C+ | 77–79 |
| A | 93–96 | C | 73–76 |
| A− | 90–92 | C− | 70–72 |
| B+ | 87–89 | D+ | 67–69 |
| B | 83–86 | D | 63–66 |
| B− | 80–82 | D− | 60–62 |
| F | Below 60 | ||
What to do with your score
- Add it to your class average with the Grade Calculator, especially if tests are weighted differently from homework.
- Find out what you need on the final with the Final Grade Calculator.
- See how the class affects your overall average in the GPA Calculator.
FAQ
What if questions are worth different points?
Enter the total points available instead of the number of questions, and the points you lost instead of the number wrong. The maths works the same way.
Does this handle half marks?
Yes. You can type decimals, such as 3.5 wrong out of 40.
Is a 79.5% rounded up to a B−?
That depends on your teacher. This calculator shows the exact percentage and grades it on the unrounded number, so 79.5% shows as a C+.
How much is each question worth?
Divide 100 by the number of questions. On a 25-question test each question is worth 4%; on a 50-question test each is worth 2%.
More free student tools
Related guide
📘 How to calculate percentage of marks (with examples)