Free EZ Grader — Online Easy Grader Calculator
Grade tests, quizzes, and assignments in seconds with our free online EZ Grader. No more manual calculations — just enter total questions and wrong answers for instant percentage scores and letter grades.
🎯 EZ Grader Calculator
Enter your test details below for instant ez grader results
Enter the total number of questions on the test
Enter the number of incorrect answers
Percentage Score
90.00%
Letter Grade
A-
Points Earned
18 / 20
90% — Great job!
📊 EZ Grader Chart for 20 Questions
Quick-reference ez grader table — see percentage and letter grade for each number wrong
| # Wrong | # Correct | Percentage | Letter Grade |
|---|
Scroll to see all rows •
What is an EZ Grader?
An EZ Grader (also spelled ezgrader or called an easy grader) is a simple yet powerful grading tool that helps teachers, professors, and educators quickly calculate test scores. Originally, the EZ Grader was a physical sliding cardboard chart — the classic E-Z Grader — invented decades ago and still found in many classrooms today. By sliding a card to align the total number of questions with the number of wrong answers, teachers could instantly read off the percentage score.
Our online EZ Grader calculator brings this classic teacher tool into the digital age. Instead of fumbling with a physical chart, you can now use our free ez grader on any device — smartphone, tablet, or computer. Simply enter the total number of questions and the number of wrong answers, and our easy grade calculator instantly displays the percentage score, letter grade, and points earned. It’s faster, more flexible, and always available at your fingertips.
Whether you’re calculating grades for a pop quiz, a major exam, or daily assignments, our ez grader calculator saves you precious time. No signup, no login, no fees — just instant, accurate grading results every time.
How to Use Our EZ Grader
Enter Total Questions
Type the total number of questions on your test or quiz into the ez grader input field.
Enter Wrong Answers
Input how many questions the student missed. Or toggle to “Count Correct” mode if you prefer.
Get Instant Results
See the percentage, letter grade, and points instantly. Use the ez grader chart for quick lookup.
Why Teachers Love Our EZ Grader
Get percentage scores and letter grades in milliseconds. Grade an entire stack of papers in minutes.
No math errors. Our ez grader calculator ensures every score is precise, every time.
Use the online ez grader on your phone while walking around the classroom.
No paywalls, no subscriptions. Our free ez grader is available to all educators.
Works with any number of questions. Supports half-point grading and custom scales.
Generate and print a custom easy grader chart for offline use during grading sessions.
EZ Grader Features
EZ Grader vs Traditional Grading Methods
| Feature | Our Online EZ Grader | Physical EZ Grader | Manual Calculator |
|---|---|---|---|
| Speed | Instant ⚡ | Fast | Slow |
| Any Question Count | ✅ Unlimited | ❌ Limited range | ✅ Yes |
| Half-Point Mode | ✅ Built-in | ⚠️ Separate chart | ⚠️ Manual calc |
| Printable Chart | ✅ One click | ✅ Already printed | ❌ None |
| Cost | 🆓 Free | 💲 ~$5–$10 | 🆓 If you own one |
| Mobile Access | ✅ Any device | ⚠️ Must carry it | ⚠️ Need device |
What Educators Say
“This ez grader has saved me hours of grading time. I use it every single day for my math quizzes. The printable chart is a game-changer!”
— Sarah M., High School Math Teacher
“Finally, an online ez grader that actually works on my phone! I can grade papers while walking around the classroom. Brilliant and free!”
— James R., Middle School Science
“I ditched my physical EZ Grader for this. The easy grader calculator handles any number of questions — my old chart maxed out at 50.”
— Maria L., Elementary Teacher
“Accurate, fast, and the half-point mode is perfect for partial-credit assignments. I recommend this ez grader calculator to all my colleagues.”
— David K., College Professor
Frequently Asked Questions About EZ Grader
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