Enter the number of questions and how many a student got wrong. You get the percentage, the letter grade, and a grading chart for the whole test.
Lowest percentage for each grade:
B
85%
17 out of 20 correct
Grading chart: 20 questions
Correct
Wrong
Percentage
Grade
quickgradecalculator.com
How to use the quick grader
Type the number of questions on the test.
Type how many the student got wrong.
Read the percentage and letter grade. Change the wrong answers for the next paper.
That's it. The grading chart under the result lists every possible score for that test, so for a full stack of papers you can just read the grade off the chart.
How the score is worked out
The tool takes the number of correct answers, divides it by the total, and multiplies by 100.
Example: a 20-question test with 3 wrong. That's 17 correct. 17 ÷ 20 = 0.85, so the score is 85%. On the standard scale, 85% is a B.
Every question counts the same. If your questions carry different points, enter points instead. Total points go in the first box and points lost go in the second.
A digital EZ Grader chart
Lots of teachers grade with a paper EZ Grader. You slide it to the number of questions and read the score next to the number wrong.
The chart here works the same way. Find the number wrong in the second column and read across to the percentage and grade. It works for any test size, from a 5-question quiz to a 200-question exam.
Need it on paper? Tap Print chart and keep it next to your stack of tests.
Which grading scale should I use?
Use the one your school uses. If you're not sure, the standard scale is the most common in the US:
Letter grade
Percentage
A
90–100%
B
80–89%
C
70–79%
D
60–69%
F
Below 60%
Pick Plus/minus if you give grades like B+ or A-. Pick Custom if your school uses different cutoffs, like a 93% A. See the full letter grade to percentage chart for every grade and its GPA.
Frequently asked questions
Is this the same as an EZ Grader?
It does the same job. An EZ Grader is the paper slide chart many teachers keep on their desk. This quick grader works the same way, but it works for any number of questions and you never have to line up a slider.
Does it round scores up?
No. It shows one decimal place, like 86.7%, and gives the grade for that exact number. So 89.9% is a B on the standard scale. If your school rounds 89.5% up to an A, keep that in mind.
What if my questions are worth different points?
Use points instead of questions. Enter the total points on the test as "total questions" and the points the student lost as "wrong answers". Half points work too, like 2.5.
Can I change the grading scale?
Yes. Pick standard A–F, plus/minus, or set your own cutoffs with Custom. The tool remembers your custom scale on this device.
How do I print the grading chart?
Enter the number of questions, then tap "Print chart". You get a clean one-page chart with every possible score for that test.
Is student data saved anywhere?
No. Everything runs in your browser. Nothing you type is sent or stored on our side.