Easy Grader
Enter the number of questions on the test. The chart shows the percentage and letter grade for every number wrong, ready to print and keep next to your stack of papers.
- Full grading chart
- Half points
- Your grading scale
- Print the chart
Test details
Most you can miss for each grade
- A+0 wrong
- A1 wrong
- A-2 wrong
- B+2 wrong
- B3 wrong
- B-4 wrong
- C+4 wrong
- C5 wrong
- C-6 wrong
- D+6 wrong
- D7 wrong
- D-8 wrong
Test score
85%
B17 of 20 right, 3 wrong. Each question or point counts for 5%.
Grading chart for 20 questions
| Wrong | Right | Score | Grade |
|---|---|---|---|
| 0 | 20 | 100% | A+ |
| 1 | 19 | 95% | A |
| 2 | 18 | 90% | A- |
| 3 | 17 | 85% | B |
| 4 | 16 | 80% | B- |
| 5 | 15 | 75% | C |
| 6 | 14 | 70% | C- |
| 7 | 13 | 65% | D |
| 8 | 12 | 60% | D- |
| 9 | 11 | 55% | F |
| 10 | 10 | 50% | F |
| 11 | 9 | 45% | F |
| 12 | 8 | 40% | F |
| 13 | 7 | 35% | F |
| 14 | 6 | 30% | F |
| 15 | 5 | 25% | F |
| 16 | 4 | 20% | F |
| 17 | 3 | 15% | F |
| 18 | 2 | 10% | F |
| 19 | 1 | 5% | F |
| 20 | 0 | 0% | F |
Grading scale: Plus/minus with A+ (A+ 97, A 93, A- 90)Change
A grade at or above a cutoff gets that letter. Edit any number to match your syllabus; the scale is used by every tab and saved on this device.
Your classes and scores are saved in this browser only. Nothing is sent to a server.
What is an easy grader?
An easy grader, often called an EZ grader, is a grading chart for teachers. Traditionally it is a cardboard slide: set it to the number of questions and it shows the percentage for each number wrong. This online version does the same for any number of questions from 1 to 400, with half points, your own grading scale and a letter grade for every row. Type the number wrong for one paper to highlight it, or print the whole chart and grade a class set without touching a calculator.
How to use the easy grader
- Enter the number of questions, or the total points, on the test.
- Choose whole or half points for the chart, and check the grading scale under Grading scale.
- Read the chart: each row shows the number wrong, the number right, the percentage and the letter grade.
- Type the number wrong for a paper to highlight its row, or click Print chart to grade a whole class set from paper.
Why teachers use this easy grader
- A full grading chartEnter the number of questions and see the percentage and letter for every possible number wrong, with half points if you need them. Print it and keep it next to the stack of tests.
- Your school’s grading scaleChoose plus/minus with or without A+, or a simple 10-point scale, then edit any cutoff to match your syllabus. Every result updates at once.
- Any test lengthCardboard grading slides usually stop at 100 questions. This one handles up to 400 questions or points, including odd totals like 37.
- Answers as you typeNo Calculate button and no page reloads. Change any number and every result updates in the same moment.
- Nothing to installWorks on a classroom computer, a phone or a tablet, with no app, account or student data stored anywhere but your browser.
- Three calculators in oneCourse grade, final exam and test score are tabs on the same page and share one grading scale. Your course grade can be sent to the final exam tab in one click.
When an easy grader helps
- Grading tests and quizzes. Teachers can turn a number wrong into a percentage and letter in a second, or print the chart for a whole stack of papers.
- Quizzes and exit tickets. Short quizzes with 8 or 12 questions give awkward percentages. The chart has them all.
- Rubrics and point totals. Enter total points instead of questions for labs, essays and rubrics scored out of 30, 45 or 60.
- Substitute teachers. Print a chart for each test so a substitute can grade with the right scale.
- Students checking a score. Students can check the grade on a returned test or see how many they can miss next time.
- Weighted class grades. Use the Course grade tab to combine test scores with homework and quizzes into a class grade.
Grade formulas, with examples
These are the formulas the calculator uses. Weights are percentages, or decimals where the formula says so (25% = 0.25).
- Weighted grade
- (score₁ × weight₁ + score₂ × weight₂ + …) ÷ (weight₁ + weight₂ + …)
- Example: (95 × 20 + 88 × 15 + 82 × 25 + 90 × 15) ÷ 75 = 88.27%
- Points grade
- total points earned ÷ total points possible × 100
- Example: 405 ÷ 450 × 100 = 90%
- Score needed on the final
- (target - current × (1 - final weight)) ÷ final weight
- Example: (90 - 88 × 0.75) ÷ 0.25 = 96%
- Grade after the final
- current × (1 - final weight) + final score × final weight
- Example: 88 × 0.75 + 80 × 0.25 = 86%
- Test score
- (questions - wrong) ÷ questions × 100
- Example: (20 - 3) ÷ 20 × 100 = 85%
Letter grade scale: percentages for A to F
Most US high schools and colleges use the plus/minus scale below. Some stop at A (no A+), and many high schools use a simple 10-point scale (A 90, B 80, C 70, D 60). Your syllabus has the final word, and you can change every cutoff in the calculator.
| Letter | Percentage | Letter | Percentage |
|---|---|---|---|
| A+ | 97 to 100 | C | 73 to 76.99 |
| A | 93 to 96.99 | C- | 70 to 72.99 |
| A- | 90 to 92.99 | D+ | 67 to 69.99 |
| B+ | 87 to 89.99 | D | 63 to 66.99 |
| B | 83 to 86.99 | D- | 60 to 62.99 |
| B- | 80 to 82.99 | F | Below 60 |
| C+ | 77 to 79.99 |
How this compares with other grade calculators
A summary of what popular free grade calculators offered in October 2026, based on their public pages: general calculator sites such as Calculator.net and Omni, single-purpose final grade calculators such as RogerHub, and the many small weighted grade sites. Features change, so check before relying on one.
| Feature | This calculator | General calculator sites | Final grade calculators | Weighted grade sites |
|---|---|---|---|---|
| Weighted categories | Yes, any number | Yes | No (final only) | Yes |
| Points-based grading | Yes | Yes | Separate mode | Yes |
| Score needed for every letter at once | Yes | One target | One target | One target |
| Weights that do not add to 100 | Handled and explained | Partly | Not applicable | Partly |
| Scores as 44/50 or B+ | Yes, in the same box | Letters via a setting | No | Letters via a setting |
| Test score and grading chart | Yes, printable | Separate page | No | Separate page |
| Editable grading scale | Yes, three presets | Some | Not applicable | Some |
| Saves your classes | Yes, on your device | Rarely | No | Rarely |
More tools for school
Turn your letter grades into a grade point average with the GPA calculator, check percentages with the percentage calculator, or average a list of scores with the average calculator. For studying, try the Pomodoro timer, write equations with the math editor and format sources with the citation generator. See every tool on the student tools page.
Example: grading a 25-question quiz
Enter 25 questions. Each question is worth 4%, so the chart reads 0 wrong = 100% (A+), 1 wrong = 96% (A), 2 wrong = 92% (A-), 3 wrong = 88% (B+), 5 wrong = 80% (B-) and 10 wrong = 60% (D-). With half points on, 2.5 wrong = 90% (A-).
What to expect from the result
Every question counts the same. For tests with different point values, enter total points and count points lost. This tool is not affiliated with the makers of any EZ Grader product; it is a free online grading chart that works the same way.
Easy Grader questions
How does an EZ grader work?
It divides the number right by the number of questions. For each number wrong, percentage = (questions - wrong) ÷ questions × 100. The online chart does this for every row and adds the letter grade from your grading scale.
Can I print the grading chart?
Yes. Click Print chart for a clean page with the test length, the grading scale and every row, without the rest of the website.
Can I change the grading scale?
Yes. Pick plus/minus with or without A+, or a 10-point scale, and edit any cutoff. The chart and letters update immediately and your scale is saved for next time.
Does it support half points?
Yes. Switch the chart to half points to see 0.5, 1, 1.5 wrong and so on. You can also type a decimal for one paper.
Is student data stored anywhere?
No names or student data are entered at all. The test length and scale are saved only in your browser.