Enter the number of questions and how many a student got wrong. You get the percentage and letter grade right away. Grading a stack? Press W for each wrong answer and Enter for the next paper.
Lowest percentage for each grade:
B
85%
17 out of 20 correct
Keys: W wrong · U undo · Enter save & next paper · R reset paper
This stack
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, or tap +1 Wrong as you mark the paper.
Read the percentage and letter grade.
Tap Next paper to save the score and start the next one.
The grading chart under the result lists every possible score for that test. If you'd rather work from paper, print it and read each grade off the chart.
How to quick grade a stack of tests
When you have 30 papers to mark, the keyboard is faster than tapping. Set the number of questions once, then for each paper:
Press W every time you find a wrong answer. Pressed one too many? Press U.
Write the grade on the paper.
Press Enter. The score is saved to your stack and the count goes back to zero.
When the stack is done, you'll see the class average, the highest and lowest score, and how many students got each grade. That's a quick way to spot a question that tripped up the whole class.
Example: five papers on a 20-question quiz with 1, 3, 4, 2 and 6 wrong give 95%, 85%, 80%, 90% and 70%. The class average is 84%, a B. Tap Copy scores and paste them straight into a spreadsheet or your gradebook.
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.
Can I grade with the keyboard?
Yes. Press W for each wrong answer, U to undo one, Enter to save the paper and start the next, and R to reset the current paper. You never have to touch the mouse.
Can it keep track of a whole class?
Yes. Each time you tap "Next paper", the score is added to the stack below the result. You see the class average, the highest and lowest score, and how many of each grade. Tap "Copy scores" to paste them into a spreadsheet or gradebook.
Is student data saved anywhere?
No names are ever asked for. Scores in your stack are kept only in this browser so a refresh doesn't lose them. Nothing is sent to us. Tap "Clear stack" when you're done.