Easy Grade Calculator
Use this easy grade calculator to calculate your grade in seconds. Enter your test, quiz, exam, or assignment score, choose the appropriate grading scale, and get an instant result.
Full EZ Grading Chart Table
21 Rows| # Wrong | # Correct | Score % | Grade | Status |
|---|
📝 Standard EZ Test Grader Lookup Benchmarks
Quick reference conversion chart for standard test lengths (10, 20, 25, 50 questions).
| Test Length | 1 Wrong Score | 2 Wrong Score | 3 Wrong Score | 5 Wrong Score | Passing Cutoff |
|---|---|---|---|---|---|
| 10 Questions | 90.0% (A-) | 80.0% (B-) | 70.0% (C-) | 50.0% (F) | 6 Questions (60%) |
| 20 Questions | 95.0% (A) | 90.0% (A-) | 85.0% (B) | 75.0% (C) | 12 Questions (60%) |
| 25 Questions | 96.0% (A) | 92.0% (A-) | 88.0% (B+) | 80.0% (B-) | 15 Questions (60%) |
| 50 Questions | 98.0% (A+) | 96.0% (A) | 94.0% (A) | 90.0% (A-) | 30 Questions (60%) |
📊 Complete Score-to-Grade Reference & Calculator Manual
Easy grade calculator is an online calculator that helps you work out your score from the marks you receive. You can enter your obtained marks and total marks to find the percentage within a few seconds. For example, if you score 42 out of 50 marks, the calculator can show your percentage automatically: (42 ÷ 50) × 100 = 84%.
Complete Grading Chart
The score-to-grade chart below uses a common plus/minus grading scale.
| Letter Grade | Percentage Range |
|---|---|
| A+ | 97–100% |
| A | 93–96.99% |
| A− | 90–92.99% |
| B+ | 87–89.99% |
| B | 83–86.99% |
| B− | 80–82.99% |
| C+ | 77–79.99% |
| C | 73–76.99% |
| C− | 70–72.99% |
| D+ | 67–69.99% |
| D | 63–66.99% |
| D− | 60–62.99% |
| F | Below 60% |
Please note: Schools, universities, teachers, and courses may use different grade boundaries. Always compare the result with your institution’s official grading scale.
How to Use Our Easy Grade Calculator?
Our online ez grader helps you check a test score in a few simple steps:
- 1. Enter the total number of questions and your incorrect answers in the easy grader calculator.
- 2. The grade calculator shows the exact answer.
- 3. Select the A–F grading scale that applies to your class.
- 4. You can confirm your grade using our EZ grading chart table.
You can use whole numbers, half points, and decimal scores when an assessment includes partial credit. The grading calculator updates the result using the information you provide.
Use Case of Our Online Grade Calculator
Our online easy grade calculator can make everyday academic calculations quicker and more convenient. It is especially helpful when you have several scores that need to be checked within a short time.
⏱️ Saves Time
Manually calculating several percentages can become tiring when you have many assignments and tests. An easy grader gives you the required result quickly after entering the necessary marks.
🎯 Helps Avoid Mistakes
Small calculation errors can sometimes change the final percentage you receive. Using an easygrader can make basic calculations more convenient and reduce unnecessary manual mistakes.
💡 Simple for Students
Most grading tools have a straightforward design that does not require advanced mathematical knowledge. You simply provide your scores and use the result to understand your academic performance.
📐 Grade Calculation Formulas
Our EZ calculator uses standard mathematical formulas to calculate percentages. It can work from earned points or wrong answers, depending on the information available.
Formula Using Earned Points
When you know your earned points and total points, use this formula:
Example:
Suppose you earned 30 points out of a maximum score of 40:(30 ÷ 40) × 100 = 75%
Your percentage is 75%. On the example scale above, that would be a C.
Formula Using Wrong Answers
If you know the total number of questions and your incorrect answers, first calculate how many answers were correct:
Example:
A test contains 20 questions, and you answered two incorrectly:20 − 2 = 18 correct answers(18 ÷ 20) × 100 = 90%
Your test score is 90%, which would be an A− on the example plus/minus scale.
Example Grade Calculations
Here are some common score calculations:
| Score | Percentage | Example Grade |
|---|---|---|
| 18/20 | 90% | A |
| 42/50 | 84% | B |
| 36/40 | 90% | A |
| 9/12 | 75% | C |
These letter grades are examples. The final letter grade depends on the scale selected in the calculator and the grade boundaries used by your school or teacher.
🎓 Understanding the Grading Scale
A grading scale converts a percentage score into a letter grade. Each letter begins at a specific grading threshold. For example, a school may set 90% as the boundary for an A and 80% as the boundary for a B.
Here is a simple A–F grading scale without plus or minus grades:
| Letter Grade | Percentage Range | General Result |
|---|---|---|
| A | 90–100% | Excellent |
| B | 80–89.99% | Good |
| C | 70–79.99% | Satisfactory |
| D | 60–69.99% | Below average |
| F | Below 60% | Failing |
Some institutions consider 60% a passing result, while others require a higher score.
If your teacher uses custom thresholds, select or enter a custom grade scale where available. This allows the easy grade calculator to match your course rules more closely. You can also choose a plus/minus grading scale when grades such as A−, B+, and C− are used.
Rounding can affect a result near a grade boundary. For example, whether 89.95% becomes 90% depends on your teacher’s rounding policy.
Easy Grader for Teachers and Students
🍎 For Teachers
Teachers can use this easy grader online to check multiple tests, quizzes, and assignments quickly. Enter the total questions and wrong answers to view the percentage and letter grade without calculating every paper manually. An easy grader calculator can also support gradebook work when checking partial credit or decimal scores. However, results should still be entered into the teacher gradebook according to the school’s official grading policy.
🎓 For Students
Students can use this grading scale calculator to understand their performance before or after receiving a result. It is useful for checking a quiz score, assignment score, test score, or final exam score.
❓ Frequently Asked Questions
How is a test grade calculated?
Divide the points earned by the total possible points, and then multiply the result by 100. For example, 40 points out of 50 equals 80%.
What grade is 18 out of 20?
Eighteen out of 20 is 90%. It may be an A or A−, depending on the selected grading scale.
What grade is 42 out of 50?
Forty-two out of 50 is 84%. On many common scales, this is a B, but the exact letter grade depends on the applicable grade boundaries.
Can I calculate a grade from wrong answers?
Yes. Enter the total number of questions and the number of incorrect answers. The calculator determines the correct answers before calculating your percentage.
Does the calculator support half points?
Yes, you can use half points and other decimal scores when a teacher awards partial credit. For example, you can calculate a score of 17.5 out of 20.
Can I change the grading scale?
Yes, select an available standard, plus/minus, or custom grade scale. Use the option that matches your teacher’s or institution’s grading policy.
Are grading scales the same at every school?
No. Grading thresholds and passing-grade requirements vary among schools, universities, teachers, courses, and countries. Always check your official course information.
Does the calculator calculate weighted grades?
This calculator evaluates an individual score unless a weighted-grade feature is provided. Calculating a complete course grade requires the score and weight of each weighted assessment, such as assignments, quizzes, and the final exam.