EZ Grader
What Is the EZ Grader?
The EZ Grader is designed for teachers grading a stack of tests quickly - just enter the total question count and how many a student missed to get an instant percentage and letter grade, without doing the division by hand for every paper.
Built for Teachers Grading Fast
Perfect for grading a full class set of quizzes or tests with a fixed question count, where you just need to plug in the number wrong for each student and move to the next paper.
How to Use This Calculator
Enter the total question count
Type in how many questions were on the test.
Enter the number wrong
For each student's paper, enter how many questions they missed.
Read the percentage instantly
The score updates automatically as you type.
Check the letter grade
See the corresponding letter grade based on the standard scale.
Repeat for the next paper
Just update the 'number wrong' field for each subsequent test.
Tips & Tricks
- Keep the 'Total Questions' field fixed for an entire stack of same-length tests, and just update 'Number Wrong' for each student to grade quickly.
- Double-check partial-credit questions separately, since this tool assumes each question is worth equal, whole credit.
- For assignments with uneven point values per question, use the test grade calculator instead, entering raw points.
- Keep a tally sheet alongside this tool if you're grading a large stack, so you don't lose track of which student you're on.
Frequently Asked Questions
What's the difference between EZ Grader and Test Grade Calculator?
EZ Grader is built around question counts (right/wrong), while the test grade calculator uses raw points - use whichever matches your grading method.
Does this handle partial credit?
No - this tool assumes each question is worth equal, whole credit. For partial credit, use the test grade calculator with point totals instead.
Can I grade an entire class quickly with this?
Yes - keep the total question count fixed and just update the number wrong for each student's paper.
What grading scale does this use?
The standard U.S. scale (97-100 = A+, down to F below 65). See the full GPA scale chart.
Is there a printable version of the EZ Grader chart?
This is a digital calculator - for a printable reference, the GPA scale page has the full conversion table.
Can I use this for a quiz with a different point structure?
If every question is worth equal points, yes - if not, use the test grade calculator with raw point totals instead.
Does this work for tests with more than 100 questions?
Yes, the calculator handles any total question count.
Is this the same method as printed EZ Grader charts?
It uses the same underlying math (correct ÷ total), just calculated instantly instead of read off a printed chart.
Can students use this too, not just teachers?
Yes - it's equally useful for a student checking their own score after a graded test is returned.
Is this tool free?
Yes, completely free with no sign-up required.